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Tripp Lite Model U209-000-R 5 ft. USB to Serial Adapter (USB-A Male to DB9M) Male to Male

In stock.
Ships from United States.
  • 5 ft. Length
  • No external power required
  • Compatible with Windows, Mac and Linux computers, and Android Tablets / Phones
Choking Hazard Small parts. Not for children under 3 years.


Do you have USB computer and a peripheral with a serial port? Tripp Lite can get them connected! Our U209-000-R USB to Serial Adapter upgrades any device with a DB9 serial port to USB. We make it easy: just plug and you're ready to play. And the U209-000-R also lets you hot-swap connected devices with no need to power down the computer. Superior design and materials guarantee peak performance. And we back our pledge of quality with a lifetime product warranty.

U209-000-R Applications

Makes Serial Devices Compatible with USB Computers

The U209-000-R is a simple, portable solution that's perfect for making any serial device compatible with a USB computer. It features a USB A (male) connector that connects to the computer and a DB9 (male) connector for a serial peripheral. Providing data transfer rates to 230 Kbps, it's ideal for use with a wide range of applications including PDAs, digital cameras and more.

U209-000-R Feature Focus

Easy Setup

The U209-000-R gives you plug-and-play convenience. It requires no complicated setup procedures or external power, and lets you hot-swap connected devices at any time with no need to power down the computer. The U209-000-R is compatible with Windows 98, Windows 98 SE, Windows 2000, Windows ME, Windows XP, Vista and Win7. For Windows 98 and Windows 2000, a mini CD with required drivers is included.

Double-Shielded Cable

The U209-000-R is manufactured using top-quality materials. The cable is double-shielded with tinned copper braid and aluminum mylar foil shielding to eliminate cross-talk and reduce EMI/RFI interference.

Lifetime Product Warranty

When you choose this genuine Tripp Lite cable, you get superior performance plus peace of mind! We're so confident of the quality of the U209-000-R that we warrant it to be free from defects in material and workmanship—for life!

Tripp Lite Awards
Tripp Lite
USB to Serial Adapters
Form Factor Box Style Dongle Dongle
Ports 4 1 1
Maximum Transfer Rate 460 Kbps 230 Kbps 230 Kbps
Warranty 2-year 2-year Lifetime

Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Return Policies

  • Return for refund within: 45 days
  • Return for replacement within: 1 year
  • This item is covered by's 45/1 Return Policy