Electrical Supplies
5V 12V 1 2 4 8 Channel USB Relay Control Switch Programmable Computer Control For Smart Home PC
5V 12V 1 2 4 8 Channel USB Relay Control Switch Programmable Computer Control For Smart Home PC
https://www.bizrate.co.uk/electricalsupplies/5v-12v-1-2-4-oid27631305754.html
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