... transformer/lan transformer,used in HUB,PC card,Switch,Route,PC Mainboard,SDH,PDH,IP Phone,XDSL Modem.. transformer/electronic transformer/lan ... in the communication and networking equipments such as switch,hub,LAN card,SDH,PDH,xDSL device etc. Features: 1) Designed to ... 2) Single port, two ports, and quad ports.3) For adapter cards, MAUs, hubs, and motherboard applications.4) Designed for various ...