Tripp Lite USB-C to Serial DB9 RS232 Adapter Cable - 3 ft. (0.91 m) Keyspan, High-Speed (M/M), TAA

The Tripp Lite USA-19HS-C is a USB-C to Serial DB9 RS232 adapter cable that lets modern laptops, tablets, and other USB-C devices communicate with legacy serial equipment. Engineers can reconnect lab instruments, field technicians can program industrial controllers, and retail staff can keep barcode scanners or receipt printers in service without replacing existing hardware.

The adapter moves data at speeds up to 230 Kbps, roughly twice the rate of many built-in PC serial ports. Faster transfers mean shorter waits when logging data, updating firmware, or loading configurations.

The housing keeps weight low and occupies very little space, so it slips easily into a pocket or toolkit. A detachable 3 ft USB-C cable comes in the box, and you can swap it for any certified USB-C cable up to 16 ft when extra reach is needed on a workbench or in a rack.

LED indicators on the adapter show power and traffic at a glance, a useful aid when troubleshooting in the field. The unit draws power directly from the USB-C port, eliminating the need for an external supply.

Compatibility is wide. The adapter installs on 32-bit or 64-bit Windows versions through 11 and on Mac OS releases up to Ventura 13.3.1. Once the driver is loaded, the operating system sees a standard COM port, so almost any legacy software will work. Tripp Lite supports the hardware with a 3-year limited warranty for added peace of mind.

• Connects USB-C computers to RS232 DB9 serial devices
• Data transfer speed up to 230 Kbps, about twice that of many built-in serial ports
• Works with Windows 7 through 11 and Mac OS up to Ventura 13.3.1 on 32-bit or 64-bit systems
• Includes detachable 3 ft USB-C cable and supports replacement cables up to 16 ft
• LED lights show power and data activity for easier troubleshooting
• Operates without an external power supply
• Small size fits easily in pockets, tool bags, or laptop cases
• Covered by a 3-year limited warranty