40Gb/s QDR, QSFP+ to QSFP+ Connetor, 8-pair Differential Twinax Cable, Passive, 0.5 meters ( 16.4 ft), 30AWG, 1 Pack. The length of the cable includes the connectors at both ends.; Compatible with Cisco, Meraki, Mikrotik, Intel, Fortinet, Netgear, D-Link, Supermicro, TP-Link, etc.; All products are passed by TDR & VNA tests in our Signal Integrity Lab.; Widely used in data centers, storage area networks, Network Attached Storage, high performance computing, etc.; 30 days free-returned, exclusive FREE 3-year warranty and free lifetime technical support.