---
product_id: 369174476
title: "SainSmart 16-Channel 9-36V USB Relay Module"
brand: "sainsmart"
price: "€ 3.72"
currency: EUR
in_stock: false
url: https://www.desertcart.fr/products/369174476-sainsmart-16-channel-9-36v-usb-relay-module
store_origin: FR
region: France
---

# 16 SPDT Relays Home Automation Ready USB Controlled SainSmart 16-Channel 9-36V USB Relay Module

**Brand:** sainsmart
**Price:** € 3.72
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Unleash Your Inner Innovator!

## Quick Answers

- **What is this?** SainSmart 16-Channel 9-36V USB Relay Module by sainsmart
- **How much does it cost?** € 3.72 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/369174476-sainsmart-16-channel-9-36v-usb-relay-module)

## 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

- • **User-Friendly Design:** Simple ON/OFF switching for effortless operation.
- • **Empower Your Projects:** Transform your ideas into reality with 16 opto-isolated relays.
- • **Seamless Connectivity:** Easily connect via USB for instant control.
- • **Future-Proof Your Tech:** Stay ahead with a module that adapts to your needs.
- • **Versatile Applications:** Perfect for home automation, robotics, and more.

## Overview

The SainSmart 16-Channel 9-36V USB Relay Module is a powerful and versatile tool designed for controlling electrical devices. With 16 SPDT relays and USB connectivity, it enables seamless integration into various projects, from home automation to robotics, making it an essential component for tech enthusiasts and professionals alike.

## Description

SPECIFICATION  Maximum load: 10A/250V Power supply: DC 9V~36V LED for each relay output Power LED USB LED  WHAT'S IN THE PACKAGE  1x 16-Channel USB Relay Module

## Features

- This is USB controlled relay opto-isolated board with 16 SPDT relays.
- You can use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenoids and others.
- It can help you building projects like robotics and home automation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0793MZH2B |
| Best Sellers Rank | #272,599 in Automotive ( See Top 100 in Automotive ) #72 in Automotive Replacement Relay Control Module Relays |
| Brand | SainSmart |
| Brand Name | SainSmart |
| Coil Voltage | 36 Volts |
| Connector Type | Usb |
| Contact Current Rating | 10 Amps |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 10 Amps |
| Customer Reviews | 3.6 out of 5 stars 42 Reviews |
| Manufacturer | SainSmart |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 36 Volts |
| Minimum Switching Voltage | 9 Volts |
| Mounting Type | PCB Mount |
| Operating Time | 0.5 Seconds |
| Operation Mode | Electrical |
| Wattage | 90 watts |

## Product Details

- **Connector type:** Usb
- **Contact material:** Silver
- **Contact type:** Normally Open
- **Current rating:** 10 Amps
- **Mounting type:** PCB Mount

## Images

![SainSmart 16-Channel 9-36V USB Relay Module - Image 1](https://m.media-amazon.com/images/I/71wb3DN51VL.jpg)
![SainSmart 16-Channel 9-36V USB Relay Module - Image 2](https://m.media-amazon.com/images/I/81uNE4knpJL.jpg)
![SainSmart 16-Channel 9-36V USB Relay Module - Image 3](https://m.media-amazon.com/images/I/61Gnty8ZToL.jpg)
![SainSmart 16-Channel 9-36V USB Relay Module - Image 4](https://m.media-amazon.com/images/I/81ZnxuY7ibL.jpg)
![SainSmart 16-Channel 9-36V USB Relay Module - Image 5](https://m.media-amazon.com/images/I/81HbZf+GuvL.jpg)

## Questions & Answers

**Q: Where can I download the software for this board ?**
A: Hi, you can download from this link:
http://s3.amazonaws.com/s3.image.smart/download/101-70-208/101-70-208.zip

**Q: is the ground pin of each channel connected together or each channel is totally isolated?**
A: Hi, the ground of the control terminals is connected together, and each channel at the input is completely isolated.

**Q: Why do the commands not work when input into a serial terminal connected to the com port assigned? using putty 9600bps 8n1 i have added \r\n**
A: Not sure what you entered there and if you have a proper serial port through the USB interface.
Note there are many bytes to fransfer including a checksum if I remember correctly.
(Did create some Python code which uses python usb)

**Q: Is it possible to expand this module to control more than 16 channels? If no, any other alternatives plz?**
A: You can use a RPI with for example 4 modules, but It's better using 8-Channel USB because it contains serial number, so you have the possibility to identifiy witch module you use. It isn't possible with 2 module 16 channels on a RPI.

## Frequently Bought Together

- SainSmart 16-Channel 9-36V USB Relay Module
- SainSmart USB Eight Channel Relay Board for Automation - 12 V
- SainSmart USB 4 Channel DC 12V Relay Module Automation for Arduino Raspberry Pi DSP AVR PIC ARM

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**Shop now:** [https://www.desertcart.fr/products/369174476-sainsmart-16-channel-9-36v-usb-relay-module](https://www.desertcart.fr/products/369174476-sainsmart-16-channel-9-36v-usb-relay-module)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-22*