1Two Fiber: This SFP transceiver possesses 1.25Gb/s rate and 850nm two fiber multimode, maximum 550 meters transmission distance. 2Support DDM: This SFP optical module supports DDM function, which can monitor realtime parameters and status of optical fiber links. Compliant with SFP Multi Source Agreement standard, IEEE 802.3Z standard. 3Wide Application: This SFP dual fiber optical module is widely used in optical fiber switch switches, routers, network adapters, servers, firewalls, and other fibre channel devices with 1.25 GBIT/s SFP ports. 4Low Power Consumption: This SFP optical transceiver also features low power consumption, which is less than 1W. 5Plug and Play: This SFP transceiver supports plug and play and hot swap. Power consumption of less than 1.05W and thermal pads provide superior heat dissipation. Item Type: SFP Transceiver Material: Zinc Alloy Model: SFP GE SX MM850 Color: Silver Rate: 1.25G Transmission Distance: 550 Meters Operating Wavelength: 850nm Luminescent Power: -9 to -3db Acceptance Sensitivity: -18db The Tube Core: VCSEL Interface: LC Applicable Equipment: For Huawei, for ZTE, for H3C, for Cisco, for RIGOAL, for HP and Other Switches, Routers, Firewalls, Network Cards and Other Equipment 1 x SFP Transceiver 1 x Dustproof Plug