Skip to Store Area:


Search Site

CoolDrives Store | My Account | Login | Checkout

FTDI 6 foot DB-9 USB to Serial Adapter for PC and Mac

Double click on above image to view full picture

Zoom Out
Zoom In

More Views

FTDI 6 foot DB-9 USB to Serial Adapter for PC and Mac

Email to a Friend

Availability: In stock.

Regular Price: $19.50

Special Price: $17.95

Add Items to Cart Add to Cart

Quick Overview

6 foot USB to Serial Adapter. USB to serial I/O product provides a single USB to RS-232 serial port for providing USB connectivity to legacy or Non-USB compliant devices via a DB9 Male connector.

Use your Laptop or Desktop computer to synchronize your PDA, Digital Camera, Cell Phone or other device currently using a serial port with this USB Serial Adapter. Connect your serial devices (RS-232) to the newer computer equipment that supports USB. This adapter adds a serial port to the computer, laptop, or tablet PC via a hot plug compatible USB connector. Through an existing USB Port the USB to serial adapter can be utilized to work with your legacy serial connections. It’s great for newer technologies with no serial port connections. Comes with software drivers and manual.

Serial ports on USB allow further use of existing devices, even when the computer doesn’t offer serial ports. The high speed serial port with the 128 byte FIFO allows for high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial port also allows unusual speed settings like 500.000bps.


  • 6 foot USB Cable length
  • Adds one RS-232 serial port by connecting to a USB port
  • Compact size cable type converter with cable length of 25 cm
  • Installed as standard Windows COM port
  • Full RS-232 modem control signals and hardware/software flow control
  • RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • High speed serial port with the baud rate up to 921.6K bps
  • Non-standard baudrates supported
  • LED status indicators for TxD and RxD for easy port monitoring and diagnostic
  • Serial port protected with surge protection of 10KV
  • Powered by USB port, no external power adapter required
  • Easy plug and play installation and RS-232 device connection
  • COM port number assigned can be changed to any COM port number required
  • Works with USB 1.1 & 2.0 host port
Part Number US-323-s
UPC 729440625290
Color Blue
Manufacturer Coolgear
Compatibility All Operating Systems
Tech Notes This serial adapter does not support Windows XP operating systems.
Cable Length 6 feet
Serial Chip FTDI
External Ports 1 x DB9

Customer Reviews

  1. Works! Review by Slvr28

    Works! (Posted on 10/8/2015)

  2. Life saver Review by DRR38

    I use a Tripp-Lite SRCOOLNET to remotely control my SR-COOL 12K AC. I had to flash the bios due to a SW problem and unfortunately Tripp-Lite used a serial port instead of USB. Guess what I didn't have on my laptop. Installed easily and works great (Posted on 8/11/2015)