***** **********Best Quality Guranteed. *****Compatibility - fit for Arista SFP-10GE-T and other open switchs, please contact us, any product quality and compatibility issues*****Main Specs - only support 10Gb/s data rate (not support 100/1000M) up to 30m, copper RJ45 connector, for CAT6A/CAT7 cable*****Usage - rotat the ring latch down at 90 degree angle to unlock, then insert it to the port*****Application - used in fiber switches, routers, NIC, server or other fiber optic equipments with 10Gb SFP + ports*****30 days Free-Returned, 3 years Free Warranty and lifetime technology support