Description Product Reviews QDD-400-CU2M Cisco Compatible 2m 400G QSFP56-DD Passive Copper Twinax DAC The QDD-400-CU2M is a Cisco compatible 2m 1000Base SFP+ Passive Copper Twinax DAC. It is a direct attach cable that uses copper cabling to connect two devices together. The cable is 2 meters long and supports speeds of up to 400 Gbps. It is compatible with Cisco equipment and other SFP+ compatible devices. Here are some of the features of the QDD-400-CU2M: 2m length Supports speeds of up to 400 Gbps Compatible with Cisco equipment and other SFP+ compatible devices Passive copper cabling TAA compliant Here are some of the applications of the QDD-400-CU2M: Connecting two servers together Connecting a server to a switch Connecting a switch to a router Connecting a NAS device to a switch 0 Reviews Hide Reviews Product Reviews