InstaCOM USB to Serial Adapter, 6 ft with Screws

Sewell Part # SW-29967


5.0 (1 review)

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USB to Serial options USB to 1-port Serial Adapter USB to 1-port Serial Adapter USB to 2-port Serial Adapter USB to 4-port Serial Adapter USB to 8-port Serial Adapter

Instantly add a serial port (RS-232) to your computer using one USB port. This adapter also doubles as a six-foot cable, allowing you to connect to your serial device up to six feet away from the USB port.

This product uses screws for input, need USB to serial 6ft with posts instead?

USB to Serial Diagram

Most newer computers do not include a serial port, but many PDAs, digital cameras, GPS units, barcode scanners, industrial devices, etc. still require a serial connection. This adapter cable provides the conversion.


Mfg. Part Number

  • SW-29967


  • Sewell

System Requirements

  • Windows 98 SE, ME, 2000, XP, Vista 32, Vista 64, 7 (with latest driver download)
  • Linux
  • Mac OS X
  • Pentium 233 MHz or faster
  • 64 MB RAM or more
  • Available USB Port


  • USB Type A Male
  • 9-pin Serial Male


  • 6 feet


  • Bus Powered (no external power required)

Other Technical Info

  • Supports RS232 serial interface
  • USB 1.1 compliant
  • Works with USB 1.1 & 2.0 ports
  • USB suspend condition
  • Supports 500 Kbps transfer rate
  • Advanced 16 Bit processor for USB transaction and control data processing
  • PL 2303HX Chipset

Package Contents

  • USB to Serial adapter
  • Driver CD


  • Drivers and Support pages available under the support tab


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Have experience with this product?

Most helpful reviews

Works as advertised.

Anonymous - 6/13/2014 1:29:51 PM

1 found this review helpful

Pros: Easy setup under Win 7 64 bit.

Cons: Data transmission speed is slow, but this may be due to my application requiring data transfer between Win 7 and 486 DOS operating systems.

Other: For two way data transmission a null modem gender changer was also required for my application.

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Most recent reviews

Works as advertised.

Anonymous - 6/13/2014 1:29:51 PM

Easy setup under Win 7 64 bit.


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