Mini Unmanaged 2x 10/100/1000Base-T RJ45 to 1x 1000Base-X SFP Slot Gigabit Ethernet Media Converter, British Plug Standard - FS.com United Kingdom
HGW-802SM-SER - 8x RJ45 + 2x SFP ports + 2x RS485/422/232 serial ports Gigabit Ethernet Managed PoE Industrial fiber switch, DIN rail mount, -40 to +75 Celsius
Amazon.com: Gigabit SFP to RJ45 Fiber to Ethernet Media Converter, Dual 10/100/1000Mbps RJ45 Ports to 1000Base-SX/LX/EX SFP Slots, Support Gigabit SFP Modules, Without Transceiver : Electronics
HGW-402LM-PSE - 4x RJ45 + 2x SFP ports Gigabit Ethernet Managed PoE Industrial fiber switch 120W total power, DIN rail mount, -40 to +75 Celsius
Mini Switch Converter SFP-RJ45 - Briticom
SM-2GE-SFP-CU | Cisco Module | Service Module - NetworkTigers