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Short cable adapter, DB9 female to USB-A female, 25cm length

Revitol

Revitol RS232 DB9 Female to USB 2.0 A Female Adapter 25cm

SKU CH-FJS1-E3D8V

Connects legacy serial devices to USB 2.0 ports using an FTDI chipset, 25 cm cable length

  • Product typeCable Extender
  • Adds a DB9 serial port via USB for legacy device connectivity
  • Built with FTDI chipset for reliable serial communication
  • Supports Windows 10, 8, 7, Mac OS 8+, Linux 2.4.0+
  • USB 2.0 powered design eliminates need for external power adapter
  • Compact 25cm cable length suits portable and desktop use

Revitol RS232 to USB 2.0 Adapter

This Revitol adapter converts a USB 2.0 Type-A port into a DB9 serial connection. It is built around an FTDI chipset for reliable data transfer. The 25 cm cable links legacy RS-232 equipment to modern computers without native serial ports.

Suits industrial and legacy hardware users

Engineers maintaining PLCs, CNC machines or scientific instruments gain a direct serial link. Technicians configuring network switches or routers over console cables can connect through a standard USB port. Buyers who need to attach USB peripherals to a serial host should look elsewhere.

FTDI chipset with broad OS support

The integrated FTDI processor enables driver support for Windows 10, 8 and 7, Mac OS 8 or later and Linux kernel 2.4.0 onward. This single component determines whether the adapter will enumerate correctly on the target operating system.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 87% of the 3,838 comparable items (median $41.99).

Specifications

Product
Product typeCable Extender

Questions about this item

How do I install the FTDI-chipset RS232 DB9 Female to USB 2.0 A Female adapter and what step is often missed?

Plug the USB-A male end into the computer, wait for the FTDI driver to install automatically on Windows 10, 8, 7, Mac OS 8 or higher, or Linux 2.4.0 and later, then connect your serial device to the DB9 female port; the missed step is confirming the COM port number in Device Manager before configuring your software.

What maintenance or replacement will this 25 cm USB-to-serial converter need over time?

The adapter itself has no moving parts or firmware updates; inspect the 25 cm cable and DB9 pins periodically for bent contacts or jacket wear, and replace the unit only if the FTDI chipset fails to enumerate or data errors appear.

What limit appears first when the adapter runs at sustained 232 kbps throughput?

The USB 2.0 A female interface and FTDI chipset handle continuous 232 kbps serial traffic without thermal throttling; the practical limit is the 25 cm cable length, which caps placement flexibility before signal integrity becomes a concern.

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