Cisco Small Business SFP-10G-LRM= 10GBASE-LRM SFP+ Transceiver Module for 500 Series 10 Gbps LC duplex connector Wavelength: 1310nm Ports: LC duplex connector Transfer Rate: 10 Gbps Temperature: 0° ~ 70° C Dimensions: 8.5 x 13.4 x 56.5mm Weight: 75 g