USB Optical Relay

Probots USB Relay Module 5V 1 Channel PC Contro...

USB Relay Controllers with On-Board Analog Inpu...

16 Channel USB Relay Module With GPIO And Input...

Amazon.com: DXSE Micro USB 5V LCUS-4 4 Channel ...

2 Channel USB Relay Module

Amazon.com: USB Relay,8 Channel 12VDC Type B US...

5V 2 channel USB PC Intelligent Control Relay M...

USB Relay

1 Channel 5V HID Driverless USB Relay USB Contr...

USB Serial Port Control Relay Module USB Relay ...

Amazon.com: Taidda USB Relay Module, Sturdy Lig...

USB Relay Controller Board - 4 Channels for Hom...

USB Relay Controller Board - 4 Channels for Hom...

2 Channel USB Relay Module

1 Channel USB Powered Relay Module With GPIO | ...

node-red-contrib-usb-hid-relay (node) - Node-RED

8 Channel USB Relay Module | Numato Lab

4 Channel USB Relay Module With GPIO And Analog...

1-Channel USB Relay Module - 5V - ElectroPeak

USB-RELAIS-KARTE, 8 Relais (JQC-3FC/T73) / rela...

2 Channel USB Relay Module

8 Channel 5V Low Level USB Relay Module | Phipp...

2 Channel USB Powered Relay Module - a module w...

USB Relay 1 Channel | 102056 | Other by www.sma...

USB-RELAY2 (USB-RELAY-2) 2路USB type B TTL電源...

USB Relay Controller - High Power USB Relays fo...

1 Channel USB Relay 5V Programmable Computer Co...

USB Four(4) Relay Module,Board for Home Automation

1 Channel USB Powered Relay Module With GPIO | ...

USB Relay Controllers with On-Board Analog Inpu...

USB 8 Canaux Carte Relais / relays - 7A(220V) /...

Quimat 5V USB 4 channel relay module Automation...

2 Channel USB Relay Module With GPIO And Analog...

4 Channel 24V HID Driverless USB Relay USB Cont...

LCUS type 1 USB relay module USB intelligent sw...