Nortel 1-port 10GBase-ER/EW XFP. Data transfer rate (max): 10000 Mbit/s. Connectivity technology: Wired. Dimensions (WxDxH): 17.8 x 71 x 12.7 mm. Certification: RoHS. Cabling technology: Ethernet 10GBase-ER, Data link protocols: 10 Gigabit Ethernet, Interface: XFP