1. Cisco compatible 2. 10GBASE SFP SR/LR/ER/ZR Transceiver Module 3.300m to 8okm ... all kinds of optical transceivers from 155M to 40G, including SFP, GBIC, SFP+, XENPAK, X2 , XFP, BIDI,CWDM,DWDM and other special ... .DDM: With DDM10.Operating Temperature: 0~70 °C Application SONET/OC48 Cisco compatible OC48 SR SFP 1310nm 2km optical transceiver