Do you want a kind of converter to convert optical to connector? Do you want to convert optical into Ethernet ? This can be your . Really practical and useful, just install it where you needed. Features -Color: Black -Material: iron, electronic components -Size: 10.00X7.00X2.60cm/3.93X2.75X1.02in - electrical port can automatically adapt to 10/100/1000M and full-duplex/half-duplex transmission mode, it is a real gigabit adaptive fiber optic transceiver. - The electrical port can be adapted to the straight-through/cross-wire connection method. - The longest multi-mode fiber is 224/550 meters, and the single-mode fiber is up to 10-100 kilometers. - Supports Ethernet packets up to 1536 bytes. Low power consumption, less heat generation and small size. - It is manufactured with professional technology to ensure the product can work for a long time. Specification Compatible standard: 802.3z/AB, 1000Base-T and 1000Base-SX/LX Cache: 512Kb Bandwidth: 12G, can achieve non- wire-speed forwarding Interface standard: electrical port: RJ-45, 10/100/1000Mbps (self-adaptive); optical port: , 1000Mbps; SFP port: 1000Mbps; Cable: Twisted pair: Category 5E or Category 6 (the longest distance is 100 meters) Fiber (multimode): 50/125, 62.5/125μm (longest distance up to 550/224m) Optical fiber (single mode): 8/125, 8.7/125, 9/125 μm (the longest distance is 10 to 100 kilometers) Flow control: full-duplex 802.3x flow control; half-duplex back pressure flow control LED indicator: , Link/Act, TP , /Act, TP 100, Power supply: 220V (100- ), 50~60Hz; DC: 5V, 2A Ambient temperature: 0 ~ +50 degree centigrade Storage temperature: -40 ~ +70 degree centigrade Humidity: 5% ~ 90% Package list: 1 x fiber modem 1 x manual