30 days free-returned, exclusive FREE 3-year warranty and free lifetime technical support. Widely used in data centers, storage area networks, Network Attached Storage, high performance computing, etc. All products are passed by TDR & VNA tests in our Signal Integrity Lab. Compatible with Cisco, Meraki, Ubiquiti, Mikrotik, Intel, Fortinet, Netgear, D-Link, Supermicro, TP-Link, Quanta, Solarflare, PaloAlto, F5, etc. 10GBase-CU, SFP+ to SFP+ Connetor, Passive, EEPROM I2C, 0.5 meters (1.64ft), 30AWG, Black, 1 Pack.