Tripp Lite USA-19HS – High Speed USB-A to DB9 Serial Adapter 3ft

Product Overview

The Tripp Lite USA-19HS is a high-speed USB-A to DB9 RS-232 serial adapter that connects legacy serial devices to any USB-A port without requiring a dedicated serial port on the host computer. Running at data rates up to 230 Kbps—twice the speed of a standard 9-pin PC serial port—the USA-19HS is appropriate for commercial AV integrators, IT technicians, and network administrators who need to configure or communicate with serial-interface equipment including console servers, managed switches, routers, modems, ISDN adapters, label printers, and bar code scanners. TAA compliant, the USB to serial adapter is eligible for U.S. government procurement.

Product Description

The USA-19HS is part of Tripp Lite's Keyspan product line. It provides a USB 2.0 Type-A connection on one end and a DB9 (DE-9) RS-232 male serial connector on the other, bridging USB-equipped computers and notebooks to serial-interface peripherals and network infrastructure equipment that requires an RS-232 connection for management or data communication.

The adapter supports data transfer rates up to 230 Kbps, exceeding the 115 Kbps limit of a standard hardware serial port. This higher rate is beneficial for applications requiring faster serial communication, such as high-speed modem connections or rapid configuration transfers to network equipment. The unit draws power directly from the USB host port—no external power supply is required—making it well-suited for use with laptops and portable workstations in field service and deployment scenarios.

At 0.12 lbs., the USA-19HS is lightweight enough for portable use without adding significant weight to a field technician's kit. Installation is plug-and-play, with no IRQ assignment required; the adapter appears as a virtual COM port in the host operating system upon connection. The 3-foot cable length provides workable reach from a laptop USB port to rack-mounted equipment in adjacent positions. The adapter is TAA compliant and covered by a Tripp Lite 3-year limited warranty.

Key Features

• High-Speed 230 Kbps Data Rate — Operates at up to 230 Kbps, twice the throughput of a standard RS-232 serial port, for faster device configuration and data communication over serial connections.
• USB-A to DB9 RS-232 Serial — Bridges USB 2.0 Type-A host ports to 9-pin DB9 RS-232 serial peripherals without requiring a dedicated hardware serial port on the host computer.
• Bus-Powered, No External Supply Required — Draws power from the USB host port, eliminating the need for an external power adapter and making the unit portable for field service use.
• Plug-and-Play, No IRQ Configuration — Installs as a virtual COM port on the host operating system without manual IRQ assignment or driver conflicts.
• Lightweight and Portable — Weighs only 0.12 lbs., making it practical for laptop-based field technicians and on-site AV and IT deployment work.
• Compatible with a Wide Range of Serial Devices — Supports modems, ISDN terminal adapters, graphics tablets, PDAs, bar code scanners, label printers, GPS receivers, and other RS-232 serial devices.
• TAA Compliant — Trade Agreements Act compliant for U.S. government and federal procurement use.
• 3-Year Limited Warranty — Backed by a Tripp Lite 3-year limited warranty.

Technical Specifications