DAC-QSFPDD-8QSFP50G-2M-AT Universally Coded MSA Compliant Direct Attach Copper Breakout Cable 400GBase-CU QSFP-DD to 8x50GBase-CU SFP56 (Passive Twinax, 2m) | Compatibility Guarantee | Lifetime warranty | Full compliance with all Industry Standards & Protocols