Cisco - QSFP-DD transceiver module

400GbE - 400GBase-DR4 - MPO-12 - up to 500 m - remanufactured - for P/N: 8101-32FH-C, C9500X-60L4D-1A, C9600X-BN-A, NCS-57C1-48Q6-SYS, NCS-57D2-18DD-SYS