DAC-QSFPDD-2QSFP56-1.5M-AT Universally Coded MSA compliant Direct Attach Copper Breakout Cable 400GBase PAM4 QSFP-DD to 2x200GBase QSFP56 (Passive Twinax, 1.5m) | Compatibility Guarantee | Lifetime warranty | Full compliance with all Industry Standards & Protocols