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SainSmart iMatic 16 Channels Relay I/O Remote Control Controller Module RJ45 Interface Compatible

Control switches remotely together with 16 Channel relay
RJ45 interface via RJ45 telecommunications connection for network control
Support for 16 Channels relay which means you could controll more to 16 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