... , CISCO SFP, CISCO SFP+, CISCO XFP, CISCO XENPAK, CISCO X2 Transceiver module *NEW SEALED* CISCO GLC-SX-MM 1000BASE-SX SFP transceiver module for ... MMF, 850-nm wavelength, dual LC/PC connector, 550m Condition: Brand ... details, please feel free to contact us, thanks! Cisco SFP transceiver module 1000BASE-SX SFP 850nm 550m GLC-SX-MM