---
product_id: 3243676
title: "SainSmart USB Eight Channel Relay Board for Automation - 12 V"
brand: "sainsmart"
price: "€ 57.21"
currency: EUR
in_stock: true
category: "Sain Smart"
url: https://www.desertcart.be/products/3243676-sainsmart-usb-eight-channel-relay-board-for-automation-12-v
store_origin: BE
region: Belgium
---

# Supports 10A high current switching 8 SPDT relays for versatile control Extra PCB openings for superior voltage isolation SainSmart USB Eight Channel Relay Board for Automation - 12 V

**Brand:** sainsmart
**Price:** € 57.21
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your smart setup with 8-channel power precision!

## Quick Answers

- **What is this?** SainSmart USB Eight Channel Relay Board for Automation - 12 V by sainsmart
- **How much does it cost?** € 57.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/3243676-sainsmart-usb-eight-channel-relay-board-for-automation-12-v)

## Best For

- sainsmart enthusiasts

## Why This Product

- Trusted sainsmart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Engineered for Safety:** Extra PCB openings provide enhanced voltage isolation to protect your setup.
- • **Built for High-Performance:** Handles up to 10A current ensuring reliable operation under heavy loads.
- • **Durability Meets Precision:** Copper contacts and doubled high current tracks guarantee long-lasting, stable switching.
- • **Plug & Play with Confidence:** Fully supported by SainSmart’s intuitive software for smooth integration.
- • **Power Your Automation Like a Pro:** 8 independent SPDT relays let you control multiple devices seamlessly.

## Overview

The SainSmart USB Eight Channel Relay Board is a 12V automation powerhouse featuring 8 SPDT relays capable of switching up to 10A. Designed with extra PCB openings for improved voltage isolation and doubled high current tracks, it ensures both safety and durability. Supported by dedicated software, this panel-mount relay board is ideal for professionals seeking reliable, multi-device control in home or industrial automation.

## Description

desertcart.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific

## Features

- 8 SPDT relays SRD-12VDC-SL-C
- Supported by our software
- Extra PCB openings for better voltage isolation
- Doubled high current tracks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0093Y89DE |
| Best Sellers Rank | #82,071 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Solid State Relays |
| Brand Name | SainSmart |
| Coil Voltage | 12 volts |
| Connector Type | Solder |
| Contact Current Rating | 10 A |
| Contact Material | Copper |
| Contact Type | Spdt |
| Current Rating | 10 A |
| Customer Reviews | 4.1 4.1 out of 5 stars (125) |
| Manufacturer | SainSmart |
| Maximum Switching Current | 10 A |
| Maximum Switching Voltage | 12 volts |
| Minimum Switching Voltage | 11 volts |
| Model | 8541582310 |
| Mounting Type | Panel Mount |
| Number of Items | 8 |
| Operation Mode | Automatic |
| Part Number | 11601 |
| Unit Count | 8 Count |
| Wattage | 120 watts |

## Product Details

- **Connector Type:** Solder
- **Contact Material:** Copper
- **Contact Type:** Spdt
- **Current Rating:** 10 A
- **Mounting Type:** Panel Mount

## Images

![SainSmart USB Eight Channel Relay Board for Automation - 12 V - Image 1](https://m.media-amazon.com/images/I/6162rh6ZAGL.jpg)

## Questions & Answers

**Q: The unit is functioning as expected. However, after it's use more, the unit cause computer to crash, when turning the on/Off a few time, the program hang up on the write command. The computer needed to reboot to recover. Any idea about this issue ? There are posts on the web that shows the similar issues. Do you have  …**
A: i know this question is old, but other people might be having the same problem. 
I had the same problem after so much iteration of write. what i did was clear the cache. the memory can only hold so much write before it hangs. I clear the cache before every write. it worked for me

**Q: Do they provide a tool to control the board through command line?**
A: You can download a sample tool from them which controls it via gui.  I never saw a command line tool.  It wasnt hard to integrate their commands into my own platform so a basic coder could probably make you a command line tool.

**Q: Can this be used to give nc / no contacts?**
A: I'm not sure of your question. This card has eight relays. Each relay has three screw clamp terminals where one is normally open, one is normally closed and the last is the common. So you can wire your device(s) to any or all relays in either normally open or closed position as you like. I hope this clarifies things.

**Q: I want use as programmable sequential controller for  my business led street sign, this unit need computer for program only or need computer to run.**
A: You would need it connected to a computer. This unit does not have any sort of programmable timers or states. It is more or less a light switch you control via a computer button.

## Frequently Bought Together

- SainSmart USB Eight Channel Relay Board for Automation - 12 V
- MILAPEAK 8pcs (4 Sets) 8 Positions Dual Row 600V 25A Screw Terminal Strip Blocks with Cover + 400V 25A 8 Positions Pre-Insulated Terminals Barrier Strip (Black & Red)

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**Shop now:** [https://www.desertcart.be/products/3243676-sainsmart-usb-eight-channel-relay-board-for-automation-12-v](https://www.desertcart.be/products/3243676-sainsmart-usb-eight-channel-relay-board-for-automation-12-v)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-22*