QSFP56-4SFP56-PC1M 1m (3ft) 200G QSFP56 to Four 50G SFP56 PAM4 Passive Copper Direct Attach Breakout Cable200G Breakout DAC200G Breakout DAC, 200Gb/s, DAC & AOC 线缆, DAC 高速分支线缆, IEEE 802.3bj and 802.3cd, SFF-8636, QSFP56 to 4x SFP56