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header-product AOC CU34B3E Computer Monitor 34-inch Wide Quad HD Curved VA LED 3440 x 1440 Pixels 21:9 Black
205.49 €

AOC CU34B3E Computer Monitor 34-inch Wide Quad HD Curved VA LED 3440 x 1440 Pixels 21:9 Black

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Short description

AOC CU34B3E 34-inch computer monitor featuring a curved VA LED display with Wide Quad HD 3440 x 1440 resolution and a 21:9 aspect ratio. Designed for office and everyday professional tasks, it includes HDMI and DisplayPort connectivity, VESA mounting support, and a wide 178-degree viewing angle for immersive viewing.
Available at price 205.49 €: 5 pcs.
Total available for order: 106 pcs.
Warranty: 3 Years
SKU: 12235831
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Cheapest delivery:

Latvijas Pasts nodaļa

Pick-up points

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Cost

3.99 €

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05.11.2026 {{selectedOffer.courierDeliveryString}}
From 8.28 € (Weight: 9.70 kg)
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Product information

Description

The AOC CU34B3E Computer Monitor is a 34-inch wide quad HD curved VA LED display designed to enhance productivity and everyday professional workflows. Featuring a 3440 x 1440 pixel resolution and a 21:9 aspect ratio, this black monitor provides an expansive workspace that allows you to manage multiple applications side by side without the need for a dual-monitor setup. The curved screen shape wraps gently around your field of view, creating a more immersive visual experience while reducing peripheral distractions.

Advantages

This AOC monitor offers a generous 34-inch screen diagonal combined with a sharp Wide Quad HD resolution, delivering crisp text and detailed graphics for office tasks and media viewing. The VA panel technology ensures deep contrast levels and rich black tones, complemented by a wide 178-degree viewing angle that maintains color consistency even when viewed from the side. With integrated HDMI and DisplayPort connectivity, the display connects easily to modern desktop computers and laptops. Furthermore, VESA mounting support allows for flexible desk setups using compatible monitor arms or wall mounts, helping to save valuable desk space.

Suitable for

  • Office multitasking and handling large spreadsheets
  • General daily professional tasks and document editing
  • Immersive viewing of wide-format multimedia content
  • Desktop setups utilizing VESA monitor arms

When it may not be suitable

This monitor does not include built-in speakers or a built-in USB hub, meaning external audio devices and peripheral connections must be routed directly through your computer. It is also not designed with touchscreen capabilities, so navigation relies entirely on standard keyboard and mouse inputs.

Key specifications

  • Display diagonal: 34 inches
  • Display resolution: 3440 x 1440 pixels
  • HD type: Wide Quad HD
  • Panel type: VA
  • Display technology: LED
  • Aspect ratio: 21:9
  • Screen shape: Curved
  • Viewing angle: 178 degrees horizontal and vertical
  • Connectivity: HDMI and DisplayPort
  • VESA mounting: Supported
  • Product colour: Black
  • Power consumption typical: 31 W
  • Power consumption standby: 0.3 W

How to use

Position the monitor on a stable desk or mount it securely using a compatible VESA bracket. Connect the display to your computer using either an HDMI or a DisplayPort cable, and plug the power cord into a standard electrical outlet. Adjust the physical placement of the monitor to ensure the top of the screen is at or slightly below eye level, which helps maintain a comfortable posture during extended periods of use. Use the on-screen display controls to adjust brightness, contrast, and input sources according to your lighting environment.

What to consider before purchase

  • Check available desk space to ensure the 34-inch curved form factor fits your workspace.
  • Verify that your computer is equipped with compatible HDMI or DisplayPort outputs.
  • Consider whether you need built-in speakers or an integrated USB hub, as this model requires external solutions for those features.

Usage recommendations

For optimal viewing comfort, position the curved monitor directly in front of you at arm's length, and take regular short breaks during extended work sessions to reduce eye strain.

Specifications

Display diagonal: Size of the display for this product, measured diagonally, usually in inches.
34 "
Display resolution: The number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels. The higher the number of pixels, the sharper the image.
3440 x 1440
HD type: Type of supported High Definition (e.g. Full HD, 4K Ultra HD).
Wide Quad HD
Panel type:
VA
Display technology: The technology used in the display e.g. plasma, LED.
LED
Power consumption (standby): The amount of electricity that is consumed when the product is on standby.
0.3 W
Power consumption (typical): Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
31 W
Energy efficiency class (HDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
G
Energy efficiency class (SDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
F
VESA mounting:
Yes
DisplayPorts quantity: Number of DisplayPorts. A DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data.
1
Headphone out: The socket for connecting headphones to the device.
Yes
HDMI: HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
Yes
HDMI ports quantity: The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
1
Built-in USB hub: Whether or not the device features a USB hub to connect more than one other device via USB.
No
Market positioning: Under which category can the device be positioned in the market, e.g. camera phone.
Office
Touchscreen: A screen of a laptop, smartphone, etc., that responds to touch so you can control the interface using your fingers.
No
Built-in speaker(s): The device contains speaker(s) to produce sound.
No
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features

Technical details

Warranty period:
3 year(s)
Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
CE

Other features

DCI-P3 coverage:
91.3 %
Built-in camera: The product has an integrated camera.
No
Viewable size, horizontal: The viewable size is often somewhat smaller than the actual size of a monitor, because there is a border around the image.
797.22 mm
Viewable size, vertical:
333.72 mm
Power supply type: The type of power supply which this product uses.
Internal
Audio output: The type of audio output that the device produces, and the connector(s).
Yes
Height adjustment: The part of the device that can be adjusted to change the height.
No
Tilt angle range:
-5 - 20
Headphone outputs: Number of sockets /ports where headphones are connected.
1
Input current:
1.5
Backlight type:
W-LED
Weight (without stand):
6300 g
Height (without stand):
368.4 mm
Depth (without stand):
109 mm
Bezel thickness type:
Frameless
Maximum refresh rate:
120 Hz

Certificates

Certification:
RoHs compliant,FCC

Operational conditions

Non-operating altitude:
0 - 12192
Operating altitude:
0 - 5000
Storage relative humidity (H-H):
5 - 93
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-25 - 55
Operating relative humidity (H-H):
10 - 85
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 40

Packaging content

Cables included:
AC, HDMI
Tilt adjustment: The tilt, which means the angle at which the device is pointing (up or down), can be changed.
Yes

Packaging data

Package weight: Weight of the packaged product.
9700 g
Package height: The distance from the top to the bottom of the packaging.
480 mm
Package depth: The distance from the front to the back of the packaging.
186 mm
Package width: The distance from one side of the packaging to the other.
930 mm

Weight & dimensions

Weight (with stand):
7400 g
Height (with stand):
476.7 mm
Depth (with stand):
265.3 mm
Width (with stand):
808.1 mm
Width (without stand):
368.4 mm

Power

Energy efficiency scale: Range of energy efficiency levels classifying devices from most to least energy-efficient.
A to G
AC input frequency:
50/60
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Energy consumption (HDR) per 1000 hours: Power consumption in switched-on state expressed in W.
46 kWh
Energy consumption (SDR) per 1000 hours: Power consumption in switched-on state expressed in W.
31 kWh
Power consumption (max): The maximum amount of power used by the device.
53 W
Power consumption (off):
0.3 W
Power consumption (standby): The amount of electricity that is consumed when the product is on standby.
0.3 W
Power consumption (typical): Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
31 W
Energy efficiency class (HDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
G
Energy efficiency class (SDR): Energy efficiency class is a standard classification that is used all over Europe and which is understandable at first sight. Products can be efficiently compared according to classes, starting from A (the most energy efficient class), and ending with G (the most energy-intensive class). The classification of energy efficiency is based on annual energy consumption which is being calculated on the basis of several different parameters.
F

Ergonomics

VESA mounting:
Yes

Ports & interfaces

DisplayPorts quantity: Number of DisplayPorts. A DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data.
1
HDMI version:
2.0
Headphone out: The socket for connecting headphones to the device.
Yes
DisplayPort version:
1.4
HDMI: HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
Yes
HDMI ports quantity: The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
1
Built-in USB hub: Whether or not the device features a USB hub to connect more than one other device via USB.
No

Design

Panel mounting interface: The product can be used wih VESA mounting interfaces.
100 x 100
Screen shape:
Curved
Detachable stand:
Yes
Front bezel colour:
Black
Frameless design:
Yes
Product colour: The colour e.g. red, blue, green, black, white.
Black
Market positioning: Under which category can the device be positioned in the market, e.g. camera phone.
Office

Performance

On Screen Display (OSD):
Yes
On Screen Display (OSD) languages:
CHI (SIMPL), CHI (TR), CZE, DUT, ENG, FIN, FRE, DEU, ITA, JPN, KOR, CRO, POL, POR, RUS, ESP, SWE, TUR, UKR
Picture-in-Picture: Picture-in-picture (PiP) is a feature of some television receivers and similar devices. One program (channel) is displayed on the full TV screen at the same time as one or more other programs are displayed in inset windows. Sound is usually from the main program only.
Yes
Flicker-free technology:
Yes
VESA Adaptive Sync support:
Yes

Display

Horizontal scan range:
30 - 190
Vertical scan range:
48 - 120
Surface hardness:
3H
Native refresh rate:
60 Hz
High Dynamic Range (HDR) supported:
Yes
Display diagonal (metric): This is the size of the display screen, measured diagonally.
86.36 cm
Pixel pitch: This is the parameter of a picture tube, which specifies the shortest distance between two dots of the same colour. The principle is: the smaller the dot pitch, the better sharpness of image.
0.232 x 0.232
Display number of colours:
1.073 billion colours
Viewing angle, vertical: Maximum vertical angle at which a display can be viewed with acceptable visual performance.
178 °
Viewing angle, horizontal: Maximum horizontal angle at which a display can be viewed with acceptable visual performance.
178 °
Contrast ratio (dynamic): A property of a display system, defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black) that the system is capable of producing.
50000000:1
Contrast ratio (typical): The difference in light intensity between the brightest white and the darkest black.
3500:1
Response time: The response time is the time difference between the moment that a source (for example a video card) sends a signal and that equipment (for example a monitor) receives or display the signal. (Used abbreviations: R/F = Rise and Fall.)
4 ms
Native aspect ratio: The aspect ratio is the ratio of the width of an image to its height. The native aspect ratio is the one which the projector/display is particularly designed for. Images shown in native aspect ratio will utilize the entire resolution of the display and achieve maximum brightness. Images shown in other than native aspect ratio will always have less resolution and less brightness than images shown in native aspect ratio.
21:9
Touchscreen: A screen of a laptop, smartphone, etc., that responds to touch so you can control the interface using your fingers.
No
Adobe RGB coverage:
98.3 %
sRGB coverage (typical):
114.7 %
DDC/CI:
Yes
High Dynamic Range (HDR) technology:
High Dynamic Range 10 (HDR10)
Screen curvature rating:
1500R
Response time (MPRT):
1 ms
Response time measurement type:
GTG (Gray to Gray)
Display brightness (typical): Display brightness, measured by its Luminance, presented as a figure in nits. Typical brightness ratings for monitors range from 250 to 350 nits with a target value of between 80 to 120 nits being suitable for most displays in a normal viewing environment.
300 cd/m²
Panel type:
VA
HD type: Type of supported High Definition (e.g. Full HD, 4K Ultra HD).
Wide Quad HD
LED backlight: A backlight is a form of illumination used in liquid crystal displays (LCDs). One type of backlight is made by LEDs, which can be either white or RGB (red green blue). White LEDs are used most often in notebooks and desktop screens, and in virtually all mobile LCD screens. RGB LEDs for backlighting are found in high-end color proofing displays such as HP DreamColor LP2480zx monitor or selected HP EliteBook notebooks, as well as newer consumer grade displays such as Dell's Studio series laptops which have an optional RGB LED display.
Yes
Display technology: The technology used in the display e.g. plasma, LED.
LED
Display diagonal: Size of the display for this product, measured diagonally, usually in inches.
34 "
Display resolution: The number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels. The higher the number of pixels, the sharper the image.
3440 x 1440

Audio

Built-in speaker(s): The device contains speaker(s) to produce sound.
No

Description

Machine translation.

Reasons to buy

Wide QHD (WQHD) Resolution

With 3440 x 1440 resolution, Wide Quad HD (WQHD) offers superior picture quality and crisp imagery that reveals every detail. The widescreen 21:9 aspect ratio is perfect for watching movies in an expansive format or immersing yourself in the latest game, plus it offers more space when it’s time to work. True 8-bit color provides a broad color palette for vibrant, natural-looking images.

Wide QHD (WQHD) Resolution

Adaptive sync

Adaptive Sync aligns your monitor’s vertical refresh rate with the frame rate delivered by your GPU, making your gameplay and casual gaming experience even more fluid by eliminating stuttering, tearing and judder. This feature is also useful when enjoying videos and other visual media, for a smoother entertainment.

Adaptive sync

120Hz Refresh Rate

Equip yourself with twice the frame rate of other monitors and say goodbye to image stuttering and blurry motion. With a 120Hz refresh rate every frame is rendered sharply and in smooth succession, so you can line up your shots accurately and appreciate high speed races in all their glory.

120Hz Refresh Rate

1500R Curved

Curved design wraps around you putting you at the center of the action and provides an immersive gaming experience.

1500R Curved

Live the game at its best with HDR10

HDR10 is here to enhance picture quality even further, improving the synchronization of your GPU or your console with the monitor. This creates a more realistic, immersive, and smooth gaming experience: You’ll feel like stepping in the game, frame by frame.

Live the game at its best with HDR10

Flicker Free

AOC Flicker-Free Technology utilises a DC (Direct Current) backlight panel, reducing flickering light levels. With eye strain and fatigue absolutely minimized, feel free to enjoy those long, intense gaming sessions in comfort!

Flicker Free

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Product comparison

The AOC CU34B3E monitor is compared with several alternative 34-inch Wide Quad HD models: the office-oriented AOC CU34E4CW, the basic home AOC U34E2M, the gaming AOC G4 CU34G4Z, the professional Philips 34B2U3600CH/00, and the gaming iiyama GCB3482WQSU-B1. All compared devices share a 34-inch screen diagonal, 21:9 aspect ratio, and curved panel design, but differ in their intended use, built-in audio, USB hubs, and networking ports.

⚙️ The table below compares key specifications: panel type, refresh rate, built-in speakers, USB hub, and Ethernet LAN port, helping to understand the functional differences between the models.

SpecificationAOC CU34B3EAOC CU34E4CWAOC U34E2MAOC G4 CU34G4ZPhilips 34B2U3600CH/00iiyama GCB3482WQSU-B1Practical significance
Diagonal and resolution34", 3440 x 144034", 3440 x 144034", 3440 x 144034", 3440 x 144034", 3440 x 144034", 3440 x 1440All models provide an equally detailed panoramic workspace.
Panel typeVAVAVAFast VAVAVAVA panels deliver deep blacks, while gaming modifications offer faster response times.
Refresh rate120 Hz120 Hz100 HzHigh (Fast VA)120 Hz120 HzThe AOC CU34B3E supports smooth 120 Hz, trailing only specialized gaming alternatives in refresh frequency.
Built-in speakersNoYesNoNot specifiedYesYesThe AOC CU34B3E requires external speakers or headphones, unlike versions with integrated sound.
USB hubNoYesNoYesYesYesThe lack of a USB hub on the AOC CU34B3E means peripherals must be connected directly to the PC.
Network port (Ethernet)NoYesNoNoYesNoThe presence of Ethernet on the AOC CU34E4CW and Philips 34B2U3600CH/00 is convenient for wired office network connections.

◎ The table below evaluates the suitability of the models for various use cases to determine the optimal choice for office tasks, multimedia, or gaming.

Use caseRecommended productWhy
Daily office work and multitaskingAOC CU34B3EProvides ample ultrawide screen space and a 120 Hz refresh rate for smooth operation without paying extra for redundant ports.
Office with extended peripherals and connectivityAOC CU34E4CW or Philips 34B2U3600CH/00Equipped with built-in speakers, USB hubs, and Ethernet ports for an all-in-one workstation setup.
Basic home tasksAOC U34E2MSuitable for home users who do not require advanced gaming or office interfaces.
Dynamic gamingAOC G4 CU34G4Z or iiyama GCB3482WQSU-B1Built specifically for gamers due to their gaming positioning and exceptionally fast response times.
The AOC CU34B3E monitor differs from competitors by offering a streamlined baseline package without built-in speakers or a USB hub, while delivering a quality curved VA panel with Wide Quad HD resolution and a 120 Hz refresh rate. It is best suited for users who need a spacious screen for office tasks and everyday multitasking without extra multimedia features. A buyer might prefer this model as a pure work tool if all peripherals connect directly to the computer.
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Stock data
Warehouse Stock Delivery to the store Store Price
BT5 5 Monday Best delivery
Fast shipping
205.49 € Best price
EU57 2 11.11.2026
228.49 €
EU58 29 23.11.2026
228.49 €
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WH109 2 27.11.2026
278.99 €
EU9 8 12.11.2026
280.99 €
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205.49 €
Stock: 5
Delivery Date: Monday Best delivery
Warehouse: BT5
228.49 €
Stock: 2
Delivery Date: 11.11.2026
Warehouse: EU57
228.49 €
Stock: 29
Delivery Date: 23.11.2026
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235.99 €
Stock: 5
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242.49 €
Stock: 8
Delivery Date: 09.11.2026
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254.49 €
Stock: 21
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Warehouse: BT84
254.99 €
Stock: 2
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284.99 €
Stock: 5
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293.49 €
Stock: 7
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310.99 €
Stock: 12
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Available only for legal entities
278.99 €
Stock: 2
Delivery Date: 27.11.2026
Warehouse: WH109
280.99 €
Stock: 8
Delivery Date: 12.11.2026
Warehouse: EU9

Customer reviews

Customer questions

FAQ

How much does the AOC CU34B3E Monitor cost, and is it available for purchase?

The price is 205.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 106 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Monday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can AOC CU34B3E Monitor be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the AOC CU34B3E Monitor online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All AOC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized AOC service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: display diagonal, display resolution, hd type, panel type, display technology, power consumption (standby), power consumption (typical), energy efficiency class (hdr), energy efficiency class (sdr), vesa mounting, displayports quantity, headphone out, hdmi, hdmi ports quantity, built-in usb hub, market positioning, touchscreen, built-in speaker(s), product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for AOC CU34B3E Monitor?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy
We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008
AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.