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StarTech ICUSB232C USB C to Serial Adapter - RS232 / DB9 Cable - Windows / Mac / Linux Compatible - Bus Powered - USB C Serial Converter

  • Connect an RS232 (DB9) peripheral to your USB-C device
  • USB to Straight-Through RS232 DB9 Serial Adapter
  • High-speed 921.6Kbps Baud Rate
  • Compatible with Windows, macOS, and Linux
  • USB C to serial adapter / USB C to db9 / USB C to rs232 / rs232 cable / db9 cable / USB type c to serial / USB-C serial adapter / USB-C serial adapter / USB C to serial adapter cable / RS 232 cable / RS232 adapter / serial adapter / serial port cable / RS232 serial cable / RS-232 serial cable / USBC / DB9 adapter
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Connect an RS232 (DB9) peripheral to your USB-C device

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.

  • Return for refund until: January 31, 2027
  • Return for replacement until: January 31, 2027
  • This item is covered by Newegg.com's Extended Holiday Return Policy.
  • Read full return policy for details.
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The StarTech ICUSB232C is a bus-powered USB-C-to-DB9 RS-232 adapter for connecting serial peripherals to compatible USB-C computers, making it suitable for users who need a straight-through serial connection with baud rates up to 921.6 Kbps.

Recommended For

  • IT administrators maintaining RS-232 equipment from newer USB-C laptops, especially when they need a portable adapter for field or mixed-device work.
  • Retail or point-of-sale technicians connecting USB-C computers to compatible DB9 receipt printers, barcode scanners, or other RS-232 peripherals.
  • Industrial and automation technicians who need a laptop-powered USB-C connection for configuring or communicating with RS-232 PLCs, sensors, or other DB9 equipment.
  • Field technicians or installers working with compatible serial devices away from a fixed workstation, where a compact, USB-powered adapter avoids carrying a separate power supply.

Spec Summary

AttributeValue
Best ForConnecting a USB-C device to an RS-232 peripheral with a DB-9 connection
Connectivity And CompatibilityUSB Type-C male to DB-9 male; compatible with Windows 7, 8.1, and 10; Windows Server 2008 R2, 2012 R2, and 2016; Mac OS X 10.11 and 10.12; and Linux 2.6.x to 4.4.x LTS versions
Serial CommunicationMaximum baud rate of 921.6 Kbps, with a 512-byte FIFO and support for no flow control, Xon/Xoff, RTS/CTS, or DTR/DSR
Operating Conditions And ReliabilityOperating temperature: 0 to 60°C; storage temperature: -20 to 80°C; humidity: 0–65% RH; MTBF: 30,000 hours
Physical SpecificationsBlack; 15.70 × 1.40 × 0.80 inches (L × W × H); item weight: 0.036 kg
Package ContentsOne serial adapter cable and one quick-start guide
Model IdentifiersStarTech.com ICUSB232C