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TRIPP LITE USB-C to Serial Adapter Cable, DB9 RS232, Male-to-Male, 5-Foot / 1.52 Meters, USB 2.0, USB Type C to RS-232, Male-to-Male, 3-Year Warranty (U209-005-C)
TRIPP LITE

TRIPP LITE USB-C to Serial Adapter Cable

Bottom line: The TRIPP LITE USB-C to Serial Adapter Cable: 230 Kbps transfer rate, twice as fast as a built-in RS-232 serial port; main trade-off: fixed 5 ft length; longer runs need a separate serial extension.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 230 Kbps transfer rate, twice as fast as a built-in RS-232 serial port
  • ✓ Native USB-C plug, so no USB-A dongle stack on current laptops, tablets or phones
  • ✓ One cable covers Windows, Mac, Linux and Android devices
  • ✓ Bus-powered: no external power supply needed for the DB9 serial end

Cons

  • ✗ Fixed 5 ft length; longer runs need a separate serial extension
  • ✗ Male DB9 end only, so male-port equipment needs a gender changer
  • ✗ USB-C only, so older USB-A desktops require a second adapter
  • ✗ Warranty listed as both 2-year and 3-year; verify terms on the current listing

Manufacturer description

The U209-005-C USB-C to DB9 Serial Adapter Cable (M/M) allows you to connect a 9-pin RS-232 serial peripheral to a device with a USB-C port. Perfect for connecting a modem, digital camera, PDA or ISDN terminal to your computer, laptop, tablet or smartphone, this cable supports data transfer speeds up to 230 Kbps, which is twice as fast as a built-in serial port. No external power source is required. The compact five-foot cable tucks away conveniently in your backpack or laptop bag for use anywhere. Premium foil and braid shielding delivers reliable, error-free signal quality and protection…

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SpecPicks Verdict

SpecPicks scored TRIPP LITE USB-C to Serial Adapter Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. TRIPP LITE's cables & connectors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cables & connectors 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Connect a Device with a 9-pin RS-232 Serial port to the USB Type-C port on your computer, laptop, tablet or smartphone
  • Supports data transfer speeds up to 230 kbps—twice as Fast as a Built-in Serial port
  • Compatible with Windows, Mac, Linux and Android devices
  • Portable 5 ft. Design fits perfectly into laptop Bag
  • 2-year limited Warranty

Full Specifications

BrandTRIPP LITE
ColorBlack
Gauge24.0
ModelU209-005-C
Cable TypeType-C
Item ShapeRound
Model NameTRIPP LITE
Item Length5 Feet
Part NumberU209-005-C
ConnectivityUSB-C
CompatibilityAndroid, Mac, Linux
Connector TypeUSB 2.0, USB Type C
Item Type NameTRIPP LITE USB-C to DB9 Serial Adapter Cable, 5' USB 2.0 Type C to RS-232 (M/5Ft (U209-005-C)
Number of Pins9
Number of Items1
Special FeatureNot_Performance_Used
Connector GenderMale-to-Male
Specification MetRoHS
Compatible DevicesLaptop, PC, Smartphone, Tablet
Data Transfer Rate230 Kbps
Full listing titleTRIPP LITE USB-C to Serial Adapter Cable, DB9 RS232, Male-to-Male, 5-Foot / 1.52 Meters, USB 2.0, USB Type C to RS-232, Male-to-Male, 3-Year Warranty (U209-005-C)

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TRIPP LITE USB-C to Serial Adapter Cable, DB9 RS232, Male-to-Male, 5-Foot / 1.52 Meters, USB 2.0, USB Type C to RS-232, Male-to-Male, 3-Year Warranty (U209-005-C) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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TRIPP LITE USB-C to Serial Adapter Cable, DB9 RS232, Male-to-Male, 5-Foot / 1.52 Meters, USB 2.0, USB Type C to RS-232, Male-to-Male, 3-Year Warranty (U209-005-C)
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