Mini Unmanaged 2x 10/100/1000Base-T RJ45 to 1x 1000Base-X SFP Slot Gigabit Ethernet Media Converter, European Plug standard - FS.com Europe
Amazon.com: Gigabit Multi-Mode LC Fiber to Ethernet Media Converter with A SFP SX Module, 1.25G Fiber to Copper RJ45 Media Converter, 1000Base-SX to 10/100/1000Base-TX, MMF, Transmission up to 550 meters/1804 ft :
Amazon.com: TP-Link MC220L | Gigabit SFP to RJ45 Fiber Media Converter | Fiber to Ethernet Converter | Plug and Play | Durable Metal Casing | Versatile Compatibility | Auto-Negotiation | UL Certified : Electronics