CP Technologies CP-US-03 USB to Serial (DB9) Adapter

Turn any USB port into a dependable RS-232 interface with the CP Technologies CP-US-03 USB to Serial (DB9) Adapter. This compact media converter enables fast, low-effort integration of legacy serial devices—such as access controllers, POS terminals, serial cameras and industrial sensors—into modern security, surveillance and monitoring networks. The CP-US-03 is plug-and-play for rapid deployment and draws power directly from the USB bus, eliminating extra power hardware and simplifying installations. With reliable data throughput (over 500 kbps) and a standard DB9 serial connector, it supports real-world applications that require stable serial communication without IRQ conflicts. Compatible with the latest Windows and macOS platforms, this USB to Serial adapter is a practical choice for system integrators, network administrators and service technicians working on security, surveillance, industrial automation and networking projects. Backed by CP Technologies’ reputation for quality and a 1-year limited warranty, the CP-US-03 helps you extend the life of existing equipment and reduce replacement costs. Add it to your toolkit for rapid serial device integration—order now or contact us for volume orders and enterprise deployment options.

• Quickly connect legacy RS-232 (DB9) devices to modern USB ports for immediate integration into security, surveillance and monitoring systems
• True plug-and-play operation with no IRQ conflicts speeds installation and reduces downtime for IT and field technicians
• USB bus-powered design eliminates the need for external power supplies—ideal for compact installations and mobile diagnostics
• Reliable data transfer (over 500 kbps) for POS, access control, industrial automation and serial camera control
• Broad OS compatibility (Windows and macOS) and compact, durable form factor for rack, desktop or field deployments