Aten 2A-137G 1.25G Single-Mode/10KM Fiber SFP Module provides 1 GbE connectivity up to 10 kilometers. The transceiver can be installed in both transmitters and receivers. As a hotpluggable module with a standard duplex connector for fiber communications, the 2A-137G works with single-mode-fiber (SMF) connections and operates at a nominal wavelength of 1310 nm which makes it a cost-effective and high performance transceiver. Extend your network connectivity up to 10 kilometers Differential Inputs and Outputs Small Form Factor Pluggable MSA (SFP Multi-Source Agreements standards) Compliant Fiber Optics Data Rate 1.25 Gbps Operating Distance 10 km Fiber Type Single Mode DDM Yes Environmental Operating Temperature 0-70°C Storage Temperature -40-85°C Physical Properties Weight 0.02 kg ( 0.04 lb ) Dimensions (L x W x H) 5.59 x 1.46 x 1.30 cm (2.2 x 0.57 x 0.51 in.) Note For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format.