SainSmart 8-Channel Relay Module

SainSmart USB Eight Channel Relay Board for Automation - 12 V

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Kootek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC

JMT 5V 8 Channel Relay Module 8 Road Relay Control Board With Optocoupler For PIC AVR MCU DSP ARM Electronic

Zitrades 5V 8 Channel Relay Module for Arduino DSP AVR PIC ARM By Zitrades

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SainSmart 2-Channel Relay Module

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Relay Board 8 Channel Popular Q&A

Q: What is the value of a mackie 32 channel 8 bus sound board?
A: less than $1000 for a used one, even if in mint condition. Read More »

Q: What is the sk8boarding channel on direct tv?
A: The Skateboarding Channel is #618 on Direct TV. Thanks! Read More »

Q: How to make a 4 channel ir remote control relay board?
A: You'll probably find lots of them on instructables.com. Read More »

Q: Is the On-board ADI AD1988B 8-Channel sound card good?
A: Only if you use bit accurate digital out to a receiver. If you use analog, get a dedicated card! Read More »

Q: Interfacing my laptop with an 8 switch relay board?
A: Logix4u Parallel Port Interfacing Tutorial - http://www.logix4u.net/parallelport1.htm Also, they have the "inpout" library which will allow you to easily interf... Read More »