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Black USB-A to DB-9 serial adapter with detachable three-foot cable

Tripp Lite

Tripp Lite USA-19HS USB-A to Serial Adapter 3 ft 230 Kbps

SKU CH-24GZ-FY2K1 MPN USA-19HS

Connects 9-pin serial devices to a USB-A port with a detachable 3-foot cable at up to 230 Kbps

  • Rated speedup to 230 kbit/s
  • Connector count2
  • Connector details1 x DB-9 RS-232 port 1 x USB Type-A port
  • Connector genderMale to Male
  • Product typeOthers
  • Product colorBlack
  • Connect 9-pin serial gear to USB-A ports
  • Transfer data at up to 230 Kbps
  • Detachable 3-foot cable reduces clutter
  • Draws power from the USB port itself
  • Compatible with Windows 10 and Mac OS 10.11

USB-A to DB-9 serial adapter

The Tripp Lite USA-19HS connects a 9-pin RS-232 device such as a router, switch or barcode scanner to a USB Type-A port on a Windows or Mac computer. A detachable 3-foot cable is included and no external power supply is needed. It is suited for technicians and administrators who maintain legacy serial equipment.

Practical limits of the USB-A serial interface

Data rates reach up to 230 Kbps, which is sufficient for console management, configuration and basic telemetry tasks. The adapter is tested with Windows 2000 through 10 and Mac OS X 10.6 through 10.11, so newer operating systems may require separate driver verification. Cable length is fixed at 3 feet, restricting placement flexibility.

Replaces internal serial ports and older dongles

This unit upgrades systems that lack a native DB-9 port or that rely on unreliable converter cables. The jump is worth it when a dependable, driver-supported link is needed for network gear, industrial hardware or point-of-sale devices. It does not serve buyers who need multiple simultaneous serial connections or longer cable runs.

How it compares

Measured against everything we stock in RS-232 Serial Cables, at today’s prices. Recalculated every night.

Price $35.99
Pricier than about 71% of the 93 comparable items (median $21.99).

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Specifications

Product
Brand nameTripp Lite
Model nameUSA-19HS
Product typeOthers
Product colorBlack
Performance
Rated speedup to 230 kbit/s
Ports & slots
Connector count2
Connector details1 x DB-9 RS-232 port
1 x USB Type-A port
Connector genderMale to Male
Size & build
Overall length3 ft (0.91 m)
Shipping weight0.15 kg
Package size220 × 142 × 66 mm

Questions about this item

Which version of the USA-19HS should I choose if I need a detachable cable?

The adapter ships with a detachable 3-foot USB cable, so the single model listed already includes that feature.

What does the 230 Kbps rating mean when the adapter is connected to a PC?

It is the maximum serial line speed the adapter can sustain, so legacy gear that talks at up to 230 Kbps will run at its full rated pace.

Does the USB-A connector limit the speed below the 230 Kbps serial rating?

The USB-A port provides more than enough bandwidth for the 230 Kbps serial link, so the adapter reaches its stated serial speed.

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