Amazon.com: A Pair of 1.25G Gigabit Ethernet Fiber Media Converters with SFP LC Single Core Transceiver Module, Single-Mode LC, SMF RJ45 to SFP Slot up to 30KM, 10/100/1000Base-Tx to 1000Base-SX (2 Pack) :
USB 3.0 Port over Optical Fiber Extender – Transwan