Feature:

1. Onboard square USB interface, stable connection.
2. Use imported high performance USB control chip.
3. Use the special relay drive chip ULN2803, the relay works more stable.
4. Military-grade PCB board production.
5. Board power socket and terminal, two ways to access the power supply are convenient and flexible.

Specification:

Features:

Onboard square USB interface, stable connection.
Use imported high performance USB control chip.
Use the special relay drive chip ULN2803, the relay works more stable.
Military-grade PCB board production.
Board power socket and terminal, two ways to access the power supply are convenient and flexible. When the power is connected, the relay can remain set even if the computer is turned off or the USB is unplugged from the computer.

Specification:
Input voltage: DC 12 V
Input current: greater than 300mA
Wiring method: NC/COM/NO
Can control AC 250V, 10A AC load and DC30V 10A DC load
Relay Size: approx. 7.5 * 7.1 * 1.5 mm/ 2.95 * 2.80 * 0.59 in
Product Weight: 64.2 g / 2.26 oz

Package list:
1 * Relay Module

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2. duties,taxes,and charges are not included in the item price or shipping fee.
3. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase.
4. All disputes arising from the duties will be submitted to ebay for solution.

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https://image-us.chengykj.com/upload/third_resource/image/shipc73.jpg

Brand	Unbranded
Country of Origin	China
UPC	7908420584007

4-Channel 12V Computer USB Smart Switch Controller PC Relay Module Expansion SET

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Specifications