Internet Explorer will soon be unsupported on this site. Please upgrade to a newer browser to continue using our site.

USB to DB9 Male Serial Adapter Cable - 1.5 FT

Add DB9 Port to PC | Automatic Handshake | 230kbps+ Data Transfer Rate | Windows Compatible
100 % of 100
Quantity Discount Pricing
1-9 10-24 25-99 100-249 250+
$34.19 $33.19 $31.79 $30.79 $30.19

Serial Computer Cables - 1.5FT DB9 Male to USB Adapter

The USB to DB9 Serial Adapter from ShowMeCables provides the connection between USB and the traditional RS-232 serial port. The adapter is designed for connections to Cellular phone, PDA, digital cameras, modems, or ISDN terminal adapters through your USB port. Since the adapter uses no IRQs, it is perfect if you need many serial devices attached to your PC.


  • Connectors: One USB A to DB9 Male
  • Cable length: 1.5 Foot
  • Supports automatic handshake mode
  • Over 230kbps data transfer rate
  • Supports remote wake-up and power management
  • 96 byte buffer each for upstream and downstream data flow
  • Works with cellular phones, PDA, digital cameras, modems, and ISDN terminal
  • Windows 98SE, ME, 2000, XP, Vista and Windows® 7, 8, 8.1, 10
  • Requires Pentium Processor or 200 MHz or above
Write Your Own Review
You're reviewing:USB to DB9 Male Serial Adapter Cable - 1.5 FT
Your Rating

Product Questions

Does the adapter utilize an authentic Prolific chip set?
Question by: Bernie Adams on Feb 15, 2019, 4:55 PM
Here is link for the spec sheet. This includes everything that is included with this cable. If you have any further questions, please contact our sales team at 1-888-519-9505 or
Answer by: Jeff - ProductManagement on Feb 18, 2019, 7:50 AM

Q: What is a null modem cable?

A: A null modem cable connects to two standard serial ports for networking two computers together. Null modem cables enable direct data transfer with minimum setup. Null modem cables reverse the transmit and receive lines on each end of the cable to enable direct two-way communication. A null modem cable for PCs ordinarily follows the RS-232 standard and uses the same serial ports as RS-232 cables.

Q: What is the difference between a DB15 and HD15 connector?

A: A DB15 connector has 15 pins arranged in two rows with one row on top of the other. The top row has 8 pins and the lower row has 7. A DB15 connector can be found on sound cards older AUI network cards and devices as well as legacy Macintosh® monitors.

A: An HD15 connector has 15 pins arranged in three rows. Each row has 5 pins with the middle row slightly offset from the top and bottom. A HD15 connector is sometimes called HD DB15 or VGA connector. The HD15 connector is a very common connector used mostly as a video interface for computers and monitors. It can also be found on HD displays and on older HD source devices such as satellite receivers and cable boxes.

What is a Parallel Cable?

A: A parallel cable is used to connect to the parallel ports on a computer and a peripheral device like a printer or external drive. IBM originally developed parallel ports and cables as a mean for connecting a printer to the earliest personal computers.