D-Link DEM-331T, 1250 Mbit/s, 1000BASE-BX-D, 40000 m, 1310 nm, -23 dBmW, 420660 h D-Link DEM-331T. Maximum data transfer rate: 1250 Mbit/s, Cabling technology: 1000BASE-BX-D. Maximum transfer distance: 40000 m, Wavelength: 1310 nm, Sensitivity: -23 dBmW. Compliance industry standards: IEEE802.3z. Connectivity technology: Wired. Weight: 20 g