ZyXEL SFP-LHX1310-40-D. Interface type: SFP, Data transfer rate (max): 1000 Mbit/s, Fiber optic connector: LC. Maximum transfer distance: 40000m, Wavelength: 1310 nm, Cable type: Single-mode. Input voltage: 3.3V. Width: 5.6 cm, Depth: 1.34 cm, Height: 1.246 cm