Club 3D USB-C to HDMI 2.1 Adapter (CAC-1586)
This is what matters about Club 3D USB-C to HDMI 2.1 Adapter (CAC-1586).
About
A PCON adapter requiring host-side DSC 1.2 support to hit its rated 8K@60Hz — 4K@120Hz is available without DSC. Depends heavily on the host GPU correctly allocating all four HBR3 lanes and initializing DSC at PCON handshake.
- HDMI version
- 2.1
- DP Alt Mode
- Yes
- Max resolution
- 7680x4320@60Hz
- Requires DisplayLink driver
- No
Ports: 1× HDMI
Confirmed with
- Notebook (generic)
On a Lenovo Slim 7 Pro (Ryzen 5900HX, DP 1.4-capable), this adapter negotiates only 4K@60Hz instead of the rated 4K@120Hz — Club 3D's own support forum traced it to the link training reporting just 5.4Gbps × 4 lanes instead of the ~21Gbps needed for 120Hz, an unresolved link-negotiation issue as of the last update to the thread.