AOC CU34B3E 34" WQHD monitor

Name: Computer monitor AOC CU34B3E 34" CU34B3E
Brand: AOC
SKU: 12235831
Price: 284.49 EUR
Availability: InStock

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Computer monitor AOC CU34B3E 34" (86.4 cm) 3440×1440 WQHD LED 21:9 4 ms Black

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Short description

AOC CU34B3E is a 34" (86.4 cm) ultrawide computer monitor with 3440×1440 Wide Quad HD resolution and LED backlight. It offers a 21:9 native aspect ratio, 4 ms response time, and 178°/178° viewing angles for wide visibility. Built-in speakers and VESA mounting support make it suitable for office work, multimedia, and productivity setups.

Available at price 284.49 €: 15 pcs.

Total available for order: 34 pcs.

Warranty: 2 Years

SKU: 12235831

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

13.07.2026 {{selectedOffer.officeDeliveryString}}

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

13.07.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

16.07.2026 {{selectedOffer.courierDeliveryString}}

From 6.49 € (Weight: 7.14 kg)

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Latvijas Pasts pakomāts / Unisend / DPD Paku skapis / Omniva / Venipak Pickup / Venipak Locker / Latvijas Pasts nodaļa

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From 1.99 €

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Payment Methods:

Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay

Available for private customers at price 308.99 €: 15 pcs.

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Product information

Description

AOC CU34B3E is a 34" (86.4 cm) ultrawide LED monitor with a 3440×1440 WQHD native resolution and a 21:9 aspect ratio. The curved VA panel provides a wider field of view for multitasking and immersive content viewing. Native 178°/178° viewing angles and built-in stereo speakers support collaborative work and multimedia playback, while VESA mounting compatibility allows flexible installation in office or home setups.

Advantages

The ultrawide 3440×1440 panel increases horizontal workspace compared with standard 16:9 screens, enabling easier side-by-side window arrangement and wider timelines for creative applications. A 4 ms response time and support for higher refresh rates deliver smoother on-screen motion for video and interactive content. The curved screen geometry reduces perceived distortion at the edges and enhances viewing comfort during prolonged use. Integrated speakers and VESA mount support add practical convenience for both desk and wall installations.

Suitable for

Office productivity and multi-window workflows
Video and photo editing with extended timelines
Watching movies and streaming in ultrawide format
General multimedia consumption and web browsing

Key specifications

Screen size: 34 inches (86.4 cm)
Native resolution: 3440 × 1440 (WQHD), 21:9 aspect ratio
Panel type: VA with LED backlight
Response time: 4 ms
Viewing angles: 178° horizontal / 178° vertical
Refresh rate: 120 Hz support
Contrast ratio: 3500:1 (typical)
Flicker-free technology
Built-in stereo speakers
Mounting: VESA compatible

How to use

Connect the monitor to a compatible graphics output on your PC or laptop using the supported video input on the device; configure display settings in the operating system to set the native 3440×1440 resolution and preferred refresh rate. Place the monitor at a comfortable viewing distance and angle to benefit from the curved panel geometry. Use the on-screen display menu to adjust brightness, contrast, and color presets that match your workflow or content type.

Usage recommendations

For optimal ergonomics, position the monitor so that the center of the screen is at or slightly below eye level and maintain an approximate viewing distance of one to two arm lengths. When editing color-critical content, allow the panel to warm up for a short period and use calibrated color profiles if precise color accuracy is required. Enable flicker-free mode and set appropriate brightness to reduce eye strain during extended sessions.

Specifications

Display diagonal: iagonal of the visible part of the screen expressed in centimeters and inches.: 34 "
Display resolution:: 3440 x 1440
HD type:: Wide Quad HD
Panel type:: VA
Display technology:: LED
Pixel pitch:: 0.232 x 0.232
Response time:: 4 ms
Contrast ratio (typical):: 3500:1
Screen shape:: Curved
Built-in USB hub:: No
VESA mounting:: Yes
Built-in speaker(s):: Yes
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
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 consumption (SDR) per 1000 hours: Power consumption in switched-on state expressed in W.: 31 kWh
Energy consumption (HDR) per 1000 hours: Power consumption in switched-on state expressed in W.: 46 kWh
Product colour:: Black

All features

Display

Display diagonal: iagonal of the visible part of the screen expressed in centimeters and inches.: 34 "
Display technology:: LED
HD type:: Wide Quad HD
Panel type:: VA
Display resolution:: 3440 x 1440
Pixel pitch:: 0.232 x 0.232
Response time:: 4 ms
Contrast ratio (typical):: 3500:1
Viewing angle, vertical:: 178 °
Viewing angle, horizontal:: 178 °
Horizontal scan range:: 30 - 190
Display diagonal (metric):: 86.36 cm
Contrast ratio (dynamic):: 50000000:1
Native aspect ratio:: 21:9
Vertical scan range:: 48 - 120
Display number of colours:: 16.7 million colours
Backlight type:: W-LED
Touchscreen:: No
Adobe RGB coverage:: 98.3 %
LED backlight:: Yes
High Dynamic Range (HDR) supported:: Yes
High Dynamic Range (HDR) technology:: High Dynamic Range 10 (HDR10)
Surface hardness:: 3H
DCI-P3 coverage:: 91.3 %
Screen curvature rating:: 1500R
Response time (MPRT):: 1 ms
Response time measurement type:: GTG (Gray to Gray)

Design

Screen shape:: Curved
Product colour:: Black
Panel mounting interface:: 100 x 100
Market positioning:: Office
Detachable stand:: Yes
Front bezel colour:: Black
Frameless design:: Yes

Ports & interfaces

HDMI ports quantity:: 1
DisplayPorts quantity:: 1
Headphone out:: Yes
Built-in USB hub:: No
HDMI version:: 2.0
HDMI:: Yes
DisplayPort version:: 1.4

Ergonomics

Tilt adjustment:: Yes
VESA mounting:: Yes

Audio

Built-in speaker(s):: Yes

Performance

DDC/CI:: Yes
sRGB coverage (typical):: 114.7 %
On Screen Display (OSD):: Yes
Picture-in-Picture:: 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
Flicker-free technology:: Yes
VESA Adaptive Sync support:: Yes

Multimedia

Built-in camera:: No

Other features

Headphone outputs:: 1
Maximum refresh rate:: 120 Hz
Audio output:: Yes
Viewable size, vertical:: 333.72 mm
Input current:: 1.5
Power supply type:: Internal
Viewable size, horizontal:: 797.22 mm
Height adjustment:: No
Tilt angle range:: -5 - 20
Weight (without stand):: 6300 g
Height (without stand):: 368.4 mm
Warranty period:: 3 year(s)

Power

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
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 consumption (SDR) per 1000 hours: Power consumption in switched-on state expressed in W.: 31 kWh
Energy consumption (HDR) per 1000 hours: Power consumption in switched-on state expressed in W.: 46 kWh
Power consumption (typical): Power consumption in switched-on state expressed in W.: 31 W
Power consumption (off):: 0.3 W
Power consumption (standby):: 0.3 W
Power consumption (max):: 53 W
AC input frequency:: 50/60
AC input voltage:: 100 - 240
Energy efficiency scale: Range of energy efficiency levels classifying devices from most to least energy-efficient.: A to G

Weight & dimensions

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

Operational conditions

Operating altitude:: 0 - 5000
Operating relative humidity (H-H):: 10 - 85
Storage temperature (T-T):: -25 - 55
Operating temperature (T-T):: 0 - 40
Storage relative humidity (H-H):: 5 - 93
Non-operating altitude:: 0 - 12192

Packaging content

Cables included:: AC, HDMI

Packaging data

Package weight:: 9700 g
Package depth:: 186 mm
Package height:: 480 mm
Package width:: 930 mm

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Instructions

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aoc-CU34B3E-12235831.pdf

mmo_137936079_1774262322_1763_4170234.pdf

Description

Instructions

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aoc-CU34B3E-12235831.pdf

mmo_137936079_1774262322_1763_4170234.pdf

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Reasons to buy

Immersive Wide QHD (3440×1440) Display

Experience exceptional clarity with the 34" AOC CU34B3E’s Wide Quad HD (3440×1440) panel. The 21:9 ultrawide aspect ratio expands your view for cinematic movies, broader game worlds and increased workspace for productivity. True 8‑bit color delivers vivid, natural tones so details and gradients look accurate and lifelike.

Smooth Visuals with Adaptive Sync

Adaptive Sync synchronizes the monitor’s refresh rate with your GPU to eliminate tearing and stutter. The result is smoother gameplay and video playback across a variety of titles and media, providing a consistently fluid viewing experience.

Fluid Motion at 120Hz Refresh Rate

Enjoy crisp, blur‑free motion with a 120Hz refresh rate that renders frames in rapid succession. This higher refresh rate helps reduce motion blur and improves responsiveness for gaming, fast‑paced video and everyday use.

Enveloping 1500R Curved Design

The 1500R curvature wraps the display around your field of view to increase immersion and reduce eye movement across the screen—ideal for extended gaming sessions, multimedia consumption and multitasking.

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Warehouse	Stock	Delivery to the store	Store Price
WH94	15	29.06.2026 Best delivery	308.99 €

Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
WH109	15	13.07.2026	284.49 € Best price
EU9	4	29.06.2026 Best delivery	361.49 €

308.99 €

Stock: 15

Delivery Date: 29.06.2026 Best delivery

Warehouse: WH94

Available only for legal entities

284.49 €

Stock: 15

Delivery Date: 13.07.2026

Warehouse: WH109

361.49 €

Stock: 4

Delivery Date: 29.06.2026 Best delivery

Warehouse: EU9

Energy label

CU34B3E

Model

Device manufacturer code

AOC

Manufacturer

Device manufacturer

34 "

Display diagonal

iagonal of the visible part of the screen expressed in centimeters and inches.

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.

Energy efficiency class (HDR)

31 kWh

Energy consumption (SDR) per 1000 hours

Power consumption in switched-on state expressed in W.

46 kWh

Energy consumption (HDR) per 1000 hours

Power consumption in switched-on state expressed in W.

Customer reviews

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Customer questions

FAQ

How much does the AOC CU34B3E 34" WQHD monitor cost, and is it available for purchase?

The price is 284.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 13.07.2026 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. All transactions are 100% secure and encrypted.

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, pixel pitch, response time, contrast ratio (typical), screen shape, built-in usb hub, vesa mounting, built-in speaker(s), energy efficiency class (sdr), energy efficiency class (hdr), energy consumption (sdr) per 1000 hours, energy consumption (hdr) per 1000 hours, 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 34" WQHD 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.

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