USB Relay Controller Board - 4 Channels for Home Automation
USB/Wireless 5V Relay Module
1 Channel USB Powered Solid State Relay Module | Numato Lab
USB 4 Relay controller - thermoregulator with sensor TCN75A
KTA-223 USB/RS485 Relay IO Board - DEV-09526 - SparkFun Electronics
TOSR02 - 2 Channel USB/Wireless Relay Module
Connect the AR-2 Relay Interface to your Android tablet or phone
DAE USB Relays - Android app - Denkovi A E LTD
Connect the AR-8 Relay Interface to your Android tablet or phone
USB 4 Channel Relay Board
USB Eight Channel Relay Board for Automation
AR-8 USB Relay Controller - Apps on Google Play
Power Supply Adapter Charger | Adapter Esp32 Wifi Module | Automation Module Wifi - Automation Modules - Aliexpress
USB One Channel Relay BOX
AR-8 USB Relay Controller - Apps on Google Play
Amazon.com: DSD TECH 12V Bluetooth Relay Module for Remote Control Switch Compatible with iPhone and Android 4.3 : Electronics
8 Channel USB Relay Module | Numato Lab
2/4 Ch Usb Relay Controller Module No Need Driver Switch Control Vb Labview Dll Lib For Linux Android Raspberry Openwrt - Instrument Parts & Accessories - AliExpress
8 Channel USB/Wireless 5V Relay Module WIFI Remote Control Kit support Cell Phone Android and IOS
TOSR08-T Channel USB/Wireless Relay (xbee,Bluetooth,WIFI) IOS/Android Control | eBay
DAE USB Relays - Android app - Denkovi A E LTD
USB-Based 8 Relay Output, 8 Isolated Input, Digital I/O System
AR-8 USB Relay Controller - Apps on Google Play
Android Relay: Relay Pros
