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SainSmart iMatic 8 Channels Relay I/O Remote Control Controller Module RJ45 Interface Compatible

Control switches remotely together with 8 Channel relay
RJ45 interface via RJ45 telecommunications connection for network control
Support for 8 Channels relay which means you could controll more to 8 different devices at the same time
Unique dual TCP connect control corresponding with above trait local as TCP server
Accept client control when connect to remote server as TCP client