In terms of data lines, DP 2.0 actually introduces three different mechanisms. The bandwidth of each channel is set at 10Gbps, 13.5Gbps, and 20Gbps. VESA calls it "UHBR/Ultra High Bit Rate". Called UHBR 10, UHBR 13.5, UHBR 20.

The original bandwidth of UHBR 10 is 40Gbps, the effective bandwidth is 38.69Gbps, and passive copper wire is enough. The previous DP 8K wire certification project actually includes it, that is, the DP data cable that has passed the 8K certification meets the signal integrity of UHBR 10. Require.

UHBR 13.5 and UHBR 20 are different. The original bandwidth is 54Gbps and 80Gbps, and the effective bandwidth is 52.22Gbps and 77.37Gbps. Passive cables can only be used for very short-distance transmission, such as notebook docking stations. If they are longer, active cables are needed, that is, planting. into the corresponding control and amplification chips.