Tripp Lite USA-19HS Keyspan USB to Serial Adapter - USB-A Male to DB9 RS232 Male, 3 ft. (0.91 m), TAA

Works with RS-232 Serial Devices
Connects to switches, routers, barcode scanners, GPS units, point-of-sale devices, lab equipment, network storage devices, modems, graphics tablets and other devices with a DB9 serial port. Supports data transfer speeds up to 230 Kbps—twice as fast as a built-in serial port.

Easy to Set Up and Use Right Out of the Box
No external power supply is needed and only one connection is required. Simply connect the included three-foot (0.9-meter) USB cable between the unit's USB-B port and your computer's USB-A port. The unit is compatible with any USB cable up to 16 feet (4.9 meters). A green LED indicates data activity at a glance. The unit weighs only 2 ounces for convenient transport in a backpack or laptop bag.

Compatible with Major Operating Systems
Works with Microsoft Windows (up to Windows 11) and macOS X (up to Ventura 13.3.1), and includes Windows line monitor and data trace software. The unit supports both 32-bit and 64-bit systems and has continuously updated drivers available for download on the unit's Technical Support page.

TAA-Compliant for GSA Schedule Purchases
The USA-19HS is compliant with the Federal Trade Agreements Act (TAA), which makes it eligible for GSA (General Services Administration) Schedule and other federal procurement contracts.