25Gbps, 25GBASE-CR SFP28 to SFP28, Passive, Direct Attach Copper Twinax Cable, 30AWG. The length of the cable includes the connectors at both ends. ^^ Compatible with Cisco, Meraki, Ubiquiti, Mikrotik, Arista, Netgear, D-Link, Supermicro, TP-Link, Quanta, Solarflare, PaloAlto, F5 and more brands ^^ 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, 5G Wireless, etc ^^ 30 days free-returned, exclusive FREE 3-year warranty and free lifetime technical support