Cisco GLC-FE-100FX48=. Maximum data transfer rate: 100 Mbit/s, Cabling technology: 100BASE-X. Connectivity technology: Wired. Maximum transfer distance: 787401.6" (20000 m), Wavelength: 1310 nm. Transmit power range: -14 - -20 dBmW, Dimensions (WxDxH): 0.528 x 2.22 x 0.335" (13.4 x 56.5 x 8.5 mm), Interface: SFP