Gigabyte M28U

Gigabyte M28U is one of the products in the database.

About

A 28" 4K 144Hz monitor with an integrated hardware KVM switch — its two HDMI 2.1 ports are physically bottlenecked below the full FRL spec, requiring DSC compression to sustain 4K144 at full chroma.

HDMI version
2.1
DisplayPort version
1.4a
DP Alt Mode
Yes
PD passthrough to host
18W
Max resolution
3840x2160@144Hz
Requires DisplayLink driver
No

Ports: 1× DisplayPort 1.4a, 2× HDMI 2.1, 1× USB-C, 1× USB Type-B (upstream) and 3× USB-A (downstream)

Confirmed with

  • Notebook (generic)

    Both HDMI 2.1 ports are physically limited to 24Gbps rather than the full 48Gbps FRL bandwidth of the spec — hitting 4K@144Hz at 10-bit 4:4:4 chroma over HDMI requires the source GPU to apply DSC compression. Sources without DSC support must drop resolution, refresh rate, or chroma subsampling to compensate.