Buy this Cisco x2-10gb-lrm - X2 10Gbps SFP transceiver module with lowest rates at https://adsii.ca/cisco-products/cisco-transceiver/cisco-sfp-modules/x2-10gb-lrm.php Technical Detail Manufacturer : Cisco Manufacturer Part : X2-10GB-LRM= Product Description : Cisco X2 - X2 transceiver module - 10 Gbps Device Type : X2 transceiver module - SC/PC Form Factor : Plug-in module Cabling Type : 10GBase-LRM Data Transfer Rate : 10 Gbps Optical Wave Length : 1310 nm Data Link Protocol : 10 Gigabit Ethernet Max Transfer Distance : 980 ft Dimensions (WxDxH) : 1.4 in x 3.6 in x 0.5 in Weight : 10.6 oz Manufacturer Warranty : 90 days warranty