100G QSFP28 DAC silver-plated copper high-speed cable, passive (1/2/3 m 30AWG & 5 m 26AWG support IEEE 802.3BJ Ethernet 100G transport protocol) 100G QSFP28 DAC cables connect 100G Base-CR4 switches, routers, servers, network adapters, or other optical fiber devices to 100G BASE devices for network attached storage, storage area networks, and high-performance computing Wide compatibility open network devices, such as block can be set in accordance with the industry standard I²C EEprom parameters control transmission, Can also be set according to customer requirements). In our signal integrity lab, we pass 100% TDR and VNA tests. Each DAC cable is individually tested on the switch for actual packet transmission prior to delivery. We are a manufacturer of standard direct connection copper cable high speed lines, custom service is also available. Widely compatible): For Dell,HP, Cisco,Lenovo,Intel,Mellanox ,Ubiquiti, unifi, D-link, Supermicro, Netgear, Mikrotik, ZTE, Quanta, Solarflare, PaloAlto, F5,H3C, etc open source devices.★Notes: This DAC cable cannot use in need special Encryption code switch.