4 Port 10/100/1000 RJ45 to Fiber Switch - Singlemode/Multimode - Accepts (x2) SFP Tranceiver Modules | Fibertronics, Inc.
Mikrotik Cloud Router Switch CRS305-1G-4S+ complete 4 SFP+ ports plus 1 Gigabit Ethernet port layer 3 switch and router assembled in metal case with power supply - New! :: Mikrotik Switches :: ICD Group, Inc
10/100/1000M 4 RJ45 UTP and 2 SFP fiber Port Fiber Optical Media Converter Gigabit Ethernet switch 2 pieces
China Transceiver Switch - On Stock Full Gigabit 4 Port Sfp Ethernet Switch Compatible Huawei – HDV Manufacturer and Supplier | HDV
4+4 Managed Gigabit SFP PoE+ Switch | RLH Industries, Inc.