Acer CB342CU 34" UWQHD 21:9 IPS Ultrawide Monitor, 3440x1440, USB-C, HDR10, Speakers, Height-Adjustable Stand, Silver
Brand:
Acer
Acer CB342CU 34" UWQHD 21:9 IPS Ultrawide Monitor, 3440x1440, USB-C, HDR10, Speakers, Height-Adjustable Stand, Silver
€558.05 inc. VAT
UM.CB2EE.016
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Acer CB342CU — 34" UWQHD 21:9 IPS Ultrawide Monitor with USB-C
34" IPS · 21:93440 x 1440 UWQHDUSB-C · HDMI · DPHDR10 · 400 cd/m²
The Acer CB342CU (semiphuzx) is a 34-inch flat ultrawide IPS monitor with UWQHD 3440 x 1440 resolution, a USB-C connection, HDR10 support and 2x 3W speakers. The 21:9 format gives roughly the width of two 24" screens without a bezel in the middle — ideal for timelines, wide spreadsheets and multitasking.
The panel is bright at 400 cd/m² with 99% sRGB colour, and the stand adjusts 150mm in height. The finish combines a black front and rear with a silver stand.
Before you order: Maximum refresh rate is 75Hz on HDMI and DisplayPort. Acer's EU product pages are inconsistent on the USB-C charging wattage and on tilt/swivel ranges, so we do not list them — tell us your laptop model and we will confirm USB-C video and charging before you order. This model has no RJ45 port (that is the CB342CUR).
What's in the Box
- Acer CB342CU monitor with stand
- HDMI cable
- USB Type-C cable
- USB 3.0 cable (USB-A to USB-B upstream)
- Power cord (EU)
What It Means in Practice
- A 34" 21:9 screen replaces a dual-monitor setup with one continuous image — no bezel through the middle of your work.
- Connect a laptop over USB-C, or a PC over HDMI 2.0 or DisplayPort 1.2.
- At 3440 x 1440 the pixel density is similar to a 27" QHD screen, so text looks the same size and sharpness, just with more width.
- Use the USB-B cable to activate the monitor's USB ports for peripherals.
- Two 3W speakers and a headphone jack are built in.
What Will Not Work
- Not curved — this is a flat ultrawide.
- No RJ45 Ethernet on this version.
- 75Hz is fine for work and casual games, not for competitive gaming.
- Some older games and video content do not support 21:9 and will show black bars at the sides.
Key Features
34" UWQHD ultrawide
3440 x 1440 at 21:9 for dual-screen width on one panel.
USB-C connection
Connect a compatible laptop with a single USB-C cable.
Bright IPS
400 cd/m², 99% sRGB, HDR10 support, 178° viewing angles.
Height-adjustable
150mm height adjustment; VESA 100 x 100.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight · Buyer's Guide
The CB342CU is a straightforward way into ultrawide productivity: a bright, flat 34" IPS panel with USB-C and a height-adjustable stand. Check your laptop's USB-C capabilities with us before ordering. For curved or higher-refresh ultrawides, browse our PC monitors.
✓ Buy it if you want a flat 34" ultrawide for multitasking with a USB-C connection.
✕ Skip it if you need RJ45 networking, a curved panel, or high refresh for gaming.
→ Also consider the Lenovo ThinkVision T34WD-40 (34" curved 120Hz with 100W USB-C and RJ45).
Not sure it fits your setup? Tell us your laptop model and we will check USB-C video and charging before you order.
Features - Acer - UM.CB2EE.016
Colour
silver
More Details
Product Code
04:430920
EAN Code
4711121337710
Manufacturer
Acer