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USB-A to DB9 male serial adapter cable one metre

Ruth's sister

Ruth's sister internal power cable US232R-100-BULK

SKU CH-0A6N-RQR9X

A USB to RS232 converter with a USB-A plug and DB9 male connector for serial communication

  • USB to RS232 conversion for legacy serial devices
  • 1 metre cable length for flexible internal routing
  • USB-A to DB9 male connector fits standard ports
  • High-performance FTDI chipset ensures reliable data transfer

USB-to-RS232 converter for legacy serial devices

This cable provides a USB-A to DB9 male connection so computers without built-in COM ports can talk to industrial equipment, networking gear or older peripherals. It uses the FTDI chipset for reliable driver support across common operating systems. The one-metre length fits typical bench or rack setups.

Replaces missing or failed onboard serial ports

The adapter is worth it when a motherboard or laptop lacks a native DB9 header and you need a straightforward way to reach console ports, PLCs or serial instruments. It is not for builders who need multiple simultaneous COM ports or isolation for electrically noisy environments.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 66% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What USB port does the US232R-100-BULK plug into?

The converter uses a standard USB-A connector, so it fits any USB-A port on the host system.

How is the US232R-100-BULK installed, and what step is often missed?

Connect the USB-A end to the computer, attach the DB9 male end to the RS232 device, then install the FTDI driver before opening the COM port.

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