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

**URL:** https://aio.lv/en/product--aoc-cu34b3e--12235831
**Data updated:** 2026-03-31 14:43 (EEST)
**Category:** Monitors
**Manufacturer:** AOC
**Manufacturer code:** CU34B3E
**EAN:** 4038986113250
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 284.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 235.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--aoc-cu34b3e--12235831

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 6.49 EUR |

## Summary 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.

## Long 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

| Feature | Value |
|---|---|
| Display diagonal | 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

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| Tilt adjustment | Yes |
| VESA mounting | Yes |

### Audio

| Feature | Value |
|---|---|
| Built-in speaker(s) | Yes |

### Performance

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| Built-in camera | No |

### Other features

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| Energy efficiency class (SDR) | F |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 31 kWh |
| Energy consumption (HDR) per 1000 hours | 46 kWh |
| Power consumption (typical) | 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 | A to G |

### Weight & dimensions

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| Cables included | AC, HDMI |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 9700 g |
| Package depth | 186 mm |
| Package height | 480 mm |
| Package width | 930 mm |

## 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 — 49 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 14.07.2026 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. More information about warranty service: https://aio.lv/en/warranty

### 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.

## Image

https://aio.lv/img/cache/product/12235831/68110002_large.webp