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Item#: N82E16812200738

StarTech Model ICUSB232DB25 3 ft USB to RS232 DB9/DB25 Serial Adapter Cable - M/M M-M

  • 2 Connector Number
  • Black
  • M-M
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The ICUSB232DB25 USB to RS232 DB9/DB25 Serial Adapter Cable (M/M) lets you connect 9-pin (DB9) or 25-pin (DB25) RS232 serial devices to your laptop or desktop computer through a USB port, as though the computer offered an onboard serial port. The integrated 3-foot (0.9 meter) cable allows it to be connected directly from the serial device to the computer without requiring additional cables.

A cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals, this high quality USB/RS232 Serial Adapter cable ships with a DB-9 to DB-25 adapter for connection to varied serial equipment.

Backed by a 2-year warranty and free lifetime technical support.

Learn more about the STARTECH ICUSB232DB25




3 ft
Connector Number
Connector Detail
External Ports: 1 - DB-25 (25 pin; D-Sub) Male
External Ports: 1 - DB-9 (9 pin; D-Sub) Male
Terminal Gender


Sound Quality
USB powered,No external power adapters needed

Supports serial transfer speeds up to 250Kbps

Includes a DB9 to DB25 pin adapter for 25-pin RS232 serial communication

Supports USB transfer speeds up to 12Mbps

Plug-and-Play and Hot Swap Support

Windows certified (WHQL) drivers

Supports remote wake-up from Modem input signals and USB power management

Compliant with USB Rev. 2.0 Full-Speed specification

Electronics Industries Association (EIA) standard RS-232-C compliant

USB to Straight-Through RS232 Serial Adapter

Ideal for connecting serial devices to laptops or tablet PCs through the USB port

Connect to and monitor/control industrial sensors

Connect bar code scanners and other serial devices to a USB port

Connect a serial modem, digital camera, or PDA with serial sync to your PC's USB port

Connect to automotive ODB/ODBII sensor adapters that use serial connectivity


Interface: USB 2.0

Ports: 1

Product Weight: 2.47 oz [70 g]

Serial Protocol: RS-232

Maximum Data Transfer Rate: 250 Kbps

Data Bits: 4, 5, 6, 7, 8

Stop Bits: 1, 1.5, 2

FIFO: 512-byte bi-directional buffer

Parity: None, Even, Odd, Mark, Space

Flow Control: None, Xon/ Xoff, Hardware

Bus Type: USB 2.0

Connector Type(s): 1-USB A (4 pin) Male

Humidity: 0~90% RH

Operating Temperature: 0ºC to 60ºC (32ºF to 140ºF)

Storage Temperature: -20ºC to 80ºC (-4ºF to 176ºF)

Chipset ID: Prolific-PL2303HXD

Microsoft WHQL Certified: Yes

OS Compatibility:
Windows 2000/ XP(32/64bit)/ Server 2003(32/64bit)/ Vista(32/64bit)/ 7(32/64bit)/ Server 2008 R2, MAC 10.1.x and up(32 bit), and Linux
Windows XP Embedded, CE 4.2/ 5.2, Windows Mobile 5/ 6, and PocketPC 2003

Quick Info

Customer Reviews of the STARTECH ICUSB232DB25

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  • Jonathan G.
  • 10/16/2014 5:59:48 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

5 out of 5 eggs

Pros: works as expected, no issues

Cons: none.

Did you find this review helpful? Yes No

  • Tong V.
  • 6/17/2013 2:48:32 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsWork and Don't

Pros: It's has both DB-9 and DB-25 connections.

Cons: It works fine when connecting to Cisco routers. But for serial receipt printers, it does not work.

Did you find this review helpful? Yes No

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Home > 
Computer Hardware > 
Computer Accessories > 
Cables > 
Computer Cables > 
Serial Cables > 
Item#: N82E16812200738
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