$183.63
AOC U27B3A
Part numberU27B3A
The short answer
The AOC U27B3A is a 27" IPS monitor with a 3840x2160 resolution and a 60 Hz refresh rate. It suits a mini PC owner who wants a sharp desk display driven over HDMI or DisplayPort, with built-in speakers and a VESA mount for an arm.
Specifications
A 3840x2160 resolution on a 27" panel gives you plenty of room for text, spreadsheets and side-by-side windows. The refresh rate is 60 Hz, so expect standard smoothness for desktop work and video rather than a high-refresh gaming display. The IPS panel accepts HDR10. With HDMI 2.0 twice and DisplayPort 1.4 once, you can keep several sources plugged in. Speakers are built in, and the VESA mount lets you use an arm.
- Screen size
- 27"
- Resolution
- 3840x2160
- Refresh rate
- 60 Hz
- Panel
- IPS
- Video inputs
- HDMI 2.0 x2, DisplayPort 1.4 x1
- DisplayPort version
- 1.4
- HDMI version
- 2.0
- USB-C video input
- No
- USB-C power delivery
- Not stated by AOC
- Thunderbolt input
- Not stated by AOC
- Built-in KVM switch
- No
- Daisy chain out
- Not stated by AOC
- HDR
- HDR10
- HDR certification
- Not stated by AOC
- VESA mount
- Yes
- Speakers
- Yes
AOC specification page · read October 21, 2026
Which mini PCs it fits
A monitor needs a video output on the mini PC that matches one of its inputs, and this one takes HDMI 2.0 or DisplayPort 1.4. It has no USB-C video input, so the machine has to connect through HDMI or DisplayPort. The Lenovo ThinkStation P3 Tiny, MINISFORUM AI X1 Pro, ACEMAGIC AM06 Pro and ASUS ExpertCenter PN65 each have an output it accepts. For the ASUS ROG NUC 15 and BOSGAME M5 we have not confirmed it fits, because their HDMI outputs are not confirmed.
Checked against every mini PC sold on amazon.com, from the specifications we hold for each machine.
Fits (23)
- ACEMAGIC V1
- Apple Mac mini (M6)
- ASUS NUC 14 Performance
- ASUS NUC 14 Pro
- ASUS NUC 14 Pro+
- ASUS ROG NUC
- ASUS ROG NUC 16
- ASUS ROG NUC 16 Edition 20
- Beelink ME mini
- Beelink Mini S12 Pro
- Beelink SER8
- BMAX MaxMini B4 Ultra
- GEEKOM A8 Max
- GEEKOM A9 Mega
- GMKtec EVO-X2
- GMKtec NucBox G3S
- MINISFORUM AI X1 Pro
- MINISFORUM AtomMan G1 Pro
- MINISFORUM MS-01
- MINISFORUM MS-02 Ultra
- MINISFORUM MS-A2
- MINISFORUM MS-S1 Max
- MINISFORUM UM890 Pro
Not confirmed (6)
- Beelink GTi14 Ultra: Not confirmed: no record of this machine's HDMI outputs.
- BOSGAME M5: Not confirmed: no record of this machine's HDMI outputs.
- GMKtec EVO-X3: Not confirmed: no record of this machine's HDMI outputs.
- MINISFORUM AtomMan G7 Pro: Not confirmed: no record of this machine's HDMI outputs.
- MSI MAX Edge AI+: Not confirmed: no record of this machine's HDMI outputs.
- NIMO Mini PC Desktop AI Max+ 395: Not confirmed: no record of this machine's HDMI outputs.
Before you buy
There is no USB-C video input and no built-in KVM switch, so one keyboard and mouse cannot be shared between machines through the monitor. AOC does not state USB-C power delivery, a Thunderbolt input, daisy chain output or HDR certification, so do not plan around any of them.
Common questions
Can I connect a mini PC to the AOC U27B3A over USB-C?
No. The monitor has no USB-C video input, so your mini PC needs an HDMI 2.0 or DisplayPort 1.4 output to drive it.
Can I share one keyboard and mouse between two mini PCs with this monitor?
Not through the monitor. It has no built-in KVM switch, so switching a keyboard and mouse between two machines would need a separate solution.
Can I put the AOC U27B3A on a monitor arm?
Yes, the monitor has a VESA mount, so an arm is an option. It also has built-in speakers if you want to skip separate ones.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.