TRIPP LITE
USB to Serial Adapter Cable, USB-A to DB9 RS232, Male-to-Male, 5 Feet / 1.5 Meters, 3-Year Warranty (U209-000-R)
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
Bottom line: The USB to Serial Adapter Cable, USB-A to DB9 RS232, Male-to-Male, 5 Feet / 1.5 Meters, 3-Year Warranty (U209-000-R) is a category leader on buyer feedback in the keyboards & mice category, priced around $9.99, rated 4.6★ across 380 verified Amazon reviews. A confident buy for most shoppers in this category.
Tripp Lite's USB to Serial Adapter Cable enables a RS-232 serial device to be connected to a computer's USB port. Perfect for a PDA, digital camera, modem or ISDN terminal with a serial port. The unit features a portable design that does not require external power. Supports data transfer rates up to 230 kbps. 5 ft. overall length. Key features: Connect a RS-232 Serial device to the USB port on your computer or Android tablet / phone. Compatible with Android tablets / phones with USB Host Mode (OTG) support and OS version 3.2 and above. Connectors: USB-A male/DB9 male Portable design is ideal…
SpecPicks Verdict
SpecPicks classifies TRIPP LITE USB to Serial Adapter Cable, USB-A to DB9 RS232… as a category leader on buyer feedback in the keyboards & mice category, based on 380 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. TRIPP LITE's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ Backed by TRIPP LITE's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- USB-A TP RS-232 SERIAL ADAPTER CABLE: Connect devices with a 9-pin DB9 RS-232 serial port, such as modems, digital cameras, PDAs and ISDN terminals, to the USB Type-A port on your computer or laptop from up to 5 feet / 1.5 meters away.
- SERIAL ADAPTER: Supports data transfer rates up to 230 kbps. Premium double-shielded cable with tinned copper braid and aluminum Mylar foil shield that eliminates cross-talk and reduces EMI/RFI interference.
- EASY TO USE: Adapter does not require external power. Drivers are easily available to download on Tripp Lite's website.
- BROAD COMPATIBILITY: Compatible with most Windows, Mac and Linux computers, and Android Tablets / Phones. Compatible with Windows 2000 up to 11, Mac OS X 10.6 through 10.12, Linux Redhat 7.3, 8.0 and 9.0 (Linux Kernel 2.4.31 and above already includes built-in drivers), Android Tablets with USB Host Mode (OTG) support and Android OS version 3.2 and above with addtional USB Host Mode (OTG) cable (such as Tripp Lite's U052-06N).
- RELIABLE PRODUCT FULLY BACKED AND SUPPORTED: This product is covered by a 3-Year Limited Warranty and is supported by Tripp Lite's Chicago-based expert technical support team over phone and email.
Full Specifications
| Brand | Tripp Lite |
|---|---|
| Color | Black |
| Model | U209-000-R |
| Cable Type | Serial |
| Item Shape | Round |
| Model Name | USB A-Male to D9-Male Serial Adapter Cable, 5ft |
| Unit Count | 1.0 Count |
| EASY TO USE | Adapter does not require external power. Drivers are easily available to download on Tripp Lite's website. |
| Item Length | 5 Feet |
| Part Number | U209-000-R |
| Connectivity | USB |
| Compatibility | Android, Mac, Linux |
| Connector Type | Usb-a, Db9 |
| Item Type Name | Tripp lite USB 2.0 A-Male to D89-Male Serial Adapter Cable, 5' (U209-000-R) |
Ready to buy?
TRIPP LITE USB to Serial Adapter Cable, USB-A to DB9 RS232, Male-to-Male, 5 Feet / 1.5 Meters, 3-Year Warranty (U209-000-R) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
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