4-channel 5V USB Relay Module

SPECIFICATION 4 SPDT relays SRD-5VDC-SL-C Relay specification: 10A 250VAC/10A 125VAC/10A 30VDC /10A 28VDC Power Supply - 5 VDC Current consumption - 200 mA FT245RL. Datasheet  (http://www.ftdichip.com/) Led for each relay output Power Led USb led Size - 101*40*16mm PCB parameters: FR4 / 1.5mm / two layers / metalized holes / HAL / white stamp / solder mask Extra PCB openings for better voltage isolation Doubled high current tracks   Supply Characteristics: Type Note Unit SRD-5VDC-SL-C Recommend voltage / VDC 5 Voltage limits Including ripple VDC 4...7 Nominal input current Voltage 5VDC mA 300 Power dissipated When all relays are ON W 3.6 Protection Against reverse polarity / / Relay output: Type / / 12V-T73-USB Relay type / / T73 Relay outputs count / / 4 Contact type / / NO, NC Current consumption 5VDC mA 30 Switching parameters 220VAC 125 VAC / 28 VDC 250 VAC A A A 10 10 10 / Notice: When the board is connected to the PC and the PC is restarted,