Cisco ME-4924-10GE Fiber Optic Switch - 24x 1GE SFP + 4x SFP Or 2x 10GE X2 Original for sale – Ethernet Network Switch manufacturer from china (108848393).
Dell SFP+ 10GbE Module, 4 port, Hot Swap, 4x SFP+ ports (optics or direct attach cables req'd) : Wireless Router - Find the best wireless router | Dell Suomi
Gigabit SFP Fiber Switch 1000Mbps Optical Media Converter 4XSFP Fiber Port and 2 RJ45 UTP Port 4/8G2E Ethernet Switch|Network Switches| - AliExpress