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, Ubiquit, Mikrotik, Intel, Fortinet, Netgear, D-Link, Supermicro, TP-Link, Quanta, Solarflare, PaloAlto, F5, etc. 10GBase-CU, SFP+ to SFP+ Connetor, Passive, 0.25 meters (0.82ft), 30AWG, Blue , 1 Pack.