# Acer monitor CB343CUR (UM.CB3EE.013) 34" 21:9 3440x1440 WQHD LCD, 4 ms, built-in speakers, USB hub, height adjustable, VESA, Black

**URL:** https://aio.lv/en/product--acer-umcb3ee013--12400192
**Data updated:** 2026-04-29 13:48 (EEST)
**Category:** Monitors
**Manufacturer:** Acer
**Manufacturer code:** UM.CB3EE.013
**EAN:** 4711474534170
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 441.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 364.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--acer-umcb3ee013--12400192

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Acer CB343CUR (UM.CB3EE.013) is a 34" (86.4 cm) ultrawide LCD monitor with 3440×1440 WQHD resolution and 21:9 aspect ratio. It offers a 4 ms response time, 178° viewing angles, built-in speakers and an integrated USB hub. The stand supports height adjustment and the panel is VESA-mountable, suitable for productivity, multimedia and immersive workflows.

## Long description

The Acer CB343CUR is a 34" (86.4 cm) ultrawide curved LCD monitor with a 21:9 aspect ratio and 3440 × 1440 WQHD resolution. The VA panel provides wide 178° viewing angles and a higher contrast ratio typical for VA technology. The screen supports a maximum refresh rate of 120 Hz and a 4 ms gray-to-gray response time, with a 1 ms MPRT figure for reduced motion blur. The display includes built-in stereo speakers and an integrated USB hub, and its ergonomic stand offers up to 15 cm of height adjustment. The chassis is VESA-mount compatible for alternative mounting setups.
Advantages
The ultrawide 21:9 format and 3440×1440 resolution increase horizontal workspace, enabling wider timelines, side-by-side documents, and expanded multitasking without multiple displays. The curved VA panel improves perceived immersion and reduces edge distortion for a more consistent viewing experience across the wide screen. A 120 Hz refresh capability combined with a 4 ms response time and 1 ms MPRT supports smoother motion in video playback and interactive content. Built-in speakers and a USB hub reduce the need for extra peripherals, while the height-adjustable stand and VESA compatibility provide flexible placement options.
Suitable for
Office productivity: large spreadsheets, document editing, and multitasking
Creative work: photo and video timelines where extra horizontal space is beneficial
Multimedia consumption: movies and streams in an ultrawide format
Casual and competitive gaming where wide field of view and higher refresh rate help gameplay
When it may not be suitable
This monitor may not be ideal for users who require the absolute fastest pixel response for professional esports at the highest competitive level, or for workflows that demand color-critical accuracy out of the box — VA panels typically have different color performance than high-end IPS reference panels. Also, the ultrawide 21:9 aspect ratio can cause compatibility or letterboxing issues with some older software and games that expect 16:9 ratios.
Key specifications
Screen size: 34" (86.4 cm)
Panel type: VA with curved screen shape
Resolution: 3440 × 1440 (WQHD)
Aspect ratio: 21:9
Maximum refresh rate: 120 Hz
Response time: 4 ms (gray-to-gray); MPRT: 1 ms
Viewing angles: 178° horizontal / 178° vertical
Integrated audio: built-in speakers
Connectivity: HDMI (HDMI 2.1), DisplayPort (1×), USB hub included
Ergonomics: height adjustment up to 15 cm; VESA mount compatible
Energy efficiency class (SDR): E
How to use
Place the monitor on a stable desk surface or attach it to a VESA-compatible arm or bracket. Connect a video source via HDMI 2.1 or DisplayPort to achieve the desired resolution and refresh rate; ensure your graphics card and cable support 3440×1440 at up to 120 Hz. Use the on-screen display (OSD) menu to adjust brightness, contrast, color mode, and input selection. The USB hub provides convenient peripheral connections; plug USB devices into the hub and connect its upstream cable to the PC. Adjust the stand height for comfortable eye level and tilt as needed to reduce glare. For clearer audio, position the monitor so built-in speakers face the listening area.
What to consider before purchase
Confirm your graphics card and cables support 3440×1440 at the desired refresh rate (HDMI 2.1 or DisplayPort compatibility).
Consider whether a VA panel’s contrast and color characteristics meet your color-accuracy needs; color-critical work may require calibration or a specialist panel.
Measure desk space and check VESA compatibility if you plan to mount the monitor.
Evaluate whether the built-in speakers meet your audio quality expectations or if external speakers/headphones are preferred.
Usage recommendations
For best results, use a high-quality HDMI 2.1 or DisplayPort cable, enable the appropriate refresh-rate setting in your system display options, and calibrate color settings if accurate color reproduction is required. Position the monitor at arm’s length and adjust height so the top third of the screen is near eye level to reduce neck strain during extended use.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display diagonal | 34 " |
| Display technology | LCD |
| HD type | Wide Quad HD |
| Panel type | VA |
| Display resolution | 3440 x 1440 |
| Pixel pitch | 0.23 x 0.23 |
| Response time | 4 ms |
| Contrast ratio (typical) | 3500:1 |
| Display brightness (typical) | 350 cd/m² |
| Viewing angle, vertical | 178 ° |
| Viewing angle, horizontal | 178 ° |
| Horizontal scan range | 31.47 - 178.8 |
| Display diagonal (metric) | 86 cm |
| Contrast ratio (dynamic) | 100000000:1 |
| Native aspect ratio | 21:9 |
| Vertical scan range | 48 - 120 |
| Pixel density | 110 ppi |
| Display number of colours | 1.07 billion colours |
| Colour depth | 10 bit |
| 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 | 90 % |
| Screen curvature rating | 1500R |
| Response time (MPRT) | 1 ms |

### Design

| Feature | Value |
|---|---|
| Screen shape | Curved |
| Product colour | Black |
| Panel mounting interface | 100 x 100 |
| Market positioning | Professional |

### Ports & interfaces

| Feature | Value |
|---|---|
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| Headphone out | Yes |
| Built-in USB hub | Yes |
| HDMI version | 2.1 |
| HDMI | Yes |
| DisplayPort out version | 1.4 |

### Ergonomics

| Feature | Value |
|---|---|
| Swivel angle range | -178 - 178 |
| Tilt adjustment | Yes |
| Cable lock slot type | Kensington |
| VESA mounting | Yes |
| Adjustable height (max) | 150 mm |

### Audio

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

### Performance

| Feature | Value |
|---|---|
| Flicker-free technology | Yes |
| Low Blue Light technology | Yes |
| AMD FreeSync type | FreeSync |

### Multimedia

| Feature | Value |
|---|---|
| RMS rated power | 10 W |
| Built-in camera | Yes |
| Number of speakers | 2 |

### Other features

| Feature | Value |
|---|---|
| Maximum refresh rate | 120 Hz |
| Viewable size, vertical | 334 mm |
| Digital horizontal frequency | 31.47 - 178.8 |
| Digital vertical frequency | 48 - 120 |
| Power supply type | Internal |
| Viewable size, horizontal | 797 mm |
| Bundled software | Acer Display Widget; VisionCare 2.0 |
| Cable lock slot | Yes |
| Height adjustment | Yes |
| Tilt angle range | -5 - 35 |
| Swivelling | Yes |
| Weight (without stand) | 5750 g |
| Height (without stand) | 363.9 mm |
| Depth (without stand) | 119.7 mm |

### Power

| Feature | Value |
|---|---|
| Energy efficiency class (SDR) | E |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 26.4 kWh |
| Energy consumption (HDR) per 1000 hours | 50 kWh |
| Power consumption (typical) | 26 W |
| Power consumption (off) | 0.3 W |
| Power consumption (standby) | 0.5 W |
| Energy efficiency scale | A to G |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight (with stand) | 8450 g |
| Width (with stand) | 808 mm |
| Height (with stand) | 409 mm |
| Depth (with stand) | 270.1 mm |
| Width (without stand) | 808 mm |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | USB, USB Type-C, HDMI |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 9400 g |

## FAQ

### How much does the Acer CB343CUR (UM.CB3EE.013) 34" WQHD monitor cost, and is it available for purchase?

The price is 441.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1021 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 30.06.2026 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 Acer 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 Acer 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), display brightness (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.

## Image

https://aio.lv/img/cache/product/12400192/68690681_large.webp