![USB Relay](/photos/usb_relay/zuxpsr321dpdtproxr_usb.png)
USB Controlled Relay at a Glance...
- 32 Relays Installed on a Circuit Board
- Onboard USB Interface Module
- Plugs Directly into USB Port
- Mounts as a Virtual COM Port - ProXR Versions
- Industry Leading Command Set
- Expandable to 256 Relays - Industry Leading Command Set
- Send Specific Commands to Trigger Relays
- Trigger Any or All Relays
- Program in Almost any Language
- Read 0 to 5 Volt Sensors
Selecting The USB Interface
![USB Controlled Relay](/photos/usb_relay/zusb_up.png)