You need several USB relays in a tight form factor ? The Yocto-MaxiRelay controls 8 relays. Each of these relay can handle up to 250V and 6 Amp. The relay state is reflected by a LED. This module does not need external power, but the host computer or the hub to which the module is connected must be able to provide up to 350 mA.

Be aware that this relay has a weak load breaking capacity, in particular for direct current: at 1A DC the relay will not cut more than 40V and at 5A DC no more than 30V. The contacts can very well stand power up to 1500W, but the relay may not be able to break contact while the load is too high.

If you need to drive higher currents, consider using several Yocto-PowerRelay or using a Yocto-MaxiCoupler to drive high-voltage relays instead.

The Yocto-MaxiRelay is not produced anymore, replacement product is Yocto-MaxiPowerRelay.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.

Yocto-MaxiRelay Yocto-MaxiRelay Yocto-MaxiRelay

USB cables and enclosure to be ordered separately.

This product is not available anymore.


Manufacturer Product NumberHI8PWER1
Product nameYocto-MaxiRelay
USB connectormicro-B
Max switching current6A
Max switching power1500W
Max voltage250V
USB consumption~350mA
Supported Operating SystemsWindows, Linux (Intel + ARM), Mac OS X, Android
Driversno driver needed
API / SDK / Libraries (USB+TCP)C++, Objective-C, C#, VB .NET, Delphi, Python, Java/Android
API / SDK / Libraries (TCP only)Javascript, Node.js, PHP, Java
Suggested enclosureYoctoBox-MaxiRelay-Transp
Made inSwitzerland

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Accessories and related products

YoctoBox-MaxiRelay-Black, Plastic enclosure for the Yocto-MaxiRelayYoctoBox-MaxiRelay-Transp, Clear plastic enclosure for the Yocto-MaxiRelay


User manual (HTML)
User manual (PDF)
3D file (STEP)
Last Firmware24473 (06/20/2016)
Library for Javascript25534 (10/10/2016)
Library for PHP25534 (10/10/2016)
Library for Objective C25534 (10/10/2016)
Library for C++25534 (10/10/2016)
Library for C#25534 (10/10/2016)
Library for VisualBasic .NET25534 (10/10/2016)
Library for Delphi25534 (10/10/2016)
Library for Python25534 (10/10/2016)
Library for Java25534 (10/10/2016)
Library for Android25534 (10/10/2016)
Library for Command line25250 (08/23/2016)
Virtual Hub for Windows25601 (10/19/2016)
Virtual Hub for Linux, Intel + ARM25601 (10/19/2016)
Virtual Hub for Mac-OS-X25601 (10/19/2016)

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