- high-quality workmanship
- No dust inclusions or pixel defects
- Stable base
- Good picture quality (contrast, clear colours)
- 144 Hz incl. AMD FreeSync Premium and NVIDIA G-Sync Compatible
- 21:9 aspect ratio
AOC AG405UXC
3440 x 1440 pixels, 39.50"10 items in stock at supplier
Product details
The AGON AG405UXC is a 40-inch WQHD gaming monitor featuring an IPS panel, a 144 Hz refresh rate, super-fast 1 ms MPRT, and low input lag to ensure you are always at the top of your game. VESA Display HDR400 provides rich color immersion to support you during the most demanding gameplay. The AG405UXC keeps you comfortable and organized at peak performance with USB-C and a 90 W power supply, along with an adjustable stand.
This monitor comes with integrated speakers, eliminating the need for external speakers and saving space on your desk. Thanks to FreeSync, this monitor can synchronize its frame rate with that of your compatible graphics card, minimizing input delays and avoiding unsightly tearing effects. Unlike traditional solutions like VSync, this technology does not require frame rate capping.
The stand of this monitor offers very flexible adjustment options: you can adjust the height, tilt it up and down, swivel it left or right, or rotate it 90° into portrait mode (Pivot). The perfect monitor alignment for any seating position or activity is just a hand's reach away.
This monitor features an IPS panel (In-Plane Switching). The IPS technology combines two major advantages. Firstly, it provides a very wide viewing angle, allowing multiple viewers to easily see the content at the same time. Secondly, IPS technology ensures high color accuracy, making this monitor suitable for color-sensitive applications such as photo editing.
Save yourself from uncomfortable contortions: this monitor includes a built-in USB hub, providing convenient connection options for your peripherals and storage devices just a hand's reach away.
Monitor type | Gaming Monitor |
Display resolution | UWQHD |
Screen technology | LCD |
Refresh rate | 144 Hz |
Video connections | DisplayPort (1x), HDMI (2x) |
USB ports | USB-A, USB-C |
Monitor equipment | Integrated loudspeakers |
Documents | |
Item number | 31135224 |
Manufacturer | AOC |
Category | Monitor |
Manufacturer no. | AG405UXC |
Release date | 6.6.2023 |
Sales rank in Category Monitor | 272 of 1885 |
External links |
Colour | Black |
Exact colour description | Black |
Monitor type | Gaming Monitor |
Display size (inches) | 39.50" |
Screen size (cm) | 100 cm |
Image resolution | 3440 x 1440 pixels |
Display resolution | UWQHD |
Pixel pitch | 0.07 mm |
Screen technology | LCD |
Panel technology | IPS |
Refresh rate | 144 Hz |
Aspect ratio | 21:9 |
Screen surface | Anti-glare |
Contrast ratio | 1200 :1 |
Response time (grey-to-grey) | 1 ms |
Brightness | 350 cd/m² |
Colour depth | 24 bits |
Colour space coverage | NTSC: 102%, sRGB: 121% |
Viewing angle (H) | 178° |
Viewing angle (V) | 178° |
Monitor equipment | Integrated loudspeakers |
Connectivity | 3.5 mm jack, HDMI |
Touch | Without touch function |
Sync-Technology | AMD Freesync Premium |
HDR Certification | Vesa DisplayHDR 400 |
Adjustability | Height-adjustable, Pivot function, Pivoting, Rotatable |
VESA wall mount | 100 x 100 mm |
Video connections | DisplayPort (1x), HDMI (2x) |
HDMI version | 2.2 |
DisplayPort version | 1.4 |
USB ports | USB-A, USB-C |
Exact USB ports | USB-A 3.0 (4x), USB-C 3.0 (1x) |
Audio Connections | Jack 3.5mm (1x) |
Network connections | RJ45 (1x) |
USB Type C Power supply | 90 W |
Power consumption | 45 W |
Power consumption (standby) | 0.50 W |
Energy consumption per year | 41 kWh |
Energy efficiency class | G |
Manufacturer commitment | SBTi |
CO₂-Emission | |
Climate contribution |
Scope of delivery | AC Cables, DisplayPort cable (1.8m), Remote control |
Width | 944.10 mm |
Length | 54.50 mm |
Height | 627.70 mm |
Weight | 11.90 kg |
Length | 112.50 cm |
Width | 54.50 cm |
Height | 22 cm |
Weight | 16.63 kg |
Product Safety |
30-day right of return
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Monitor» category have a defect within the first 24 months?
Source: Galaxus- 3.iiyama0,7 %
- 7.Dell0,8 %
- 8.AOC0,9 %
- 9.Apple1 %
- 9.Philips1 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 1.Verbatim3 days
- 1.Xiaomi3 days
- 7.AOC4 days
- 7.ASUS4 days
- 7.BenQ4 days
Return rate
How often is a product of this brand in the «Monitor» category returned?
Source: Galaxus- 6.iiyama2,5 %
- 8.Acer2,6 %
- 9.AOC2,7 %
- 10.Samsung3 %
- 11.Eizo3,1 %

- UWQHD resolution with 144 Hz
- viewing-angle stable, true-colour IPS panel
- 2x HDMI 2.0, DisplayPort 1.4, USB-C
- KVM switch, USB hub, speakers
- practical remote control
- No RGB lighting
The AOC Agon AG405UXC is a very good gaming monitor with convincing picture quality and extensive features. However, you have to like the fact that the 40-inch UWQHD display does not have a curved panel.
With the AOC Agon AG405UXC, the manufacturer delivers its largest ultrawide gaming monitor to date. And it undoubtedly serves a niche, because you don't see 40-inch monitors in 21:9 format with WQHD resolution every day. However, the result that the manufacturer delivers here is almost entirely convincing...