This one works, I have a Razer X (6650xt) attached to a minisforum nPB5 no problems and it cost me £17
Anker 515 USB C to USB C Cable, USB 4 Cable 3.3 ft, Supports 8K HD Display, 40 Gbps Data Transfer, 240W Charging USB C Charger Cable, for Type-C Laptop, Hub, Docking, and More