BFKK
BFKK USB to RS-232 DB9 Serial Cable 6ft Prolific PL-2303
Connects USB ports to RS-232 DB9 serial devices using a Prolific PL-2303 chipset for broad OS compatibility
Style Female Screw
- Female Screw
- Male Screw
- Connects legacy serial devices via USB with Prolific PL-2303 chipset
- Triple-shielded tinned copper conductors deliver 1 Mbps data transfer rate
- Standard USB-A to DB9 male connectors for direct equipment hookup
- Driver installation enables plug-and-play operation on Windows 11 10 8.1 8 7
- Compatible with macOS 10.6+ and Linux 2.4.0+ systems
USB to RS-232 Serial Adapter
The BFKK cable converts a standard USB Type-A port into a male DB9 RS-232 interface for legacy serial equipment. It targets technicians and hobbyists who need to configure modems, barcode scanners, label printers, PDAs or industrial controllers that still rely on a nine-pin serial link.
Sustained 1 Mbps Transfer Stability
The Prolific PL-2303 chipset maintains a steady 1 Mbps data rate during long configuration sessions or continuous logging tasks. Tinned copper conductors in 24/28 AWG gauge combined with triple shielding resist electromagnetic interference that can corrupt extended transfers in electrically noisy environments.
Driver-First Installation on Windows, Mac and Linux
Plug-and-play operation begins only after the vendor-supplied driver is installed once on Windows 11 down to 98, Mac OS X 10.6 or later, and Linux kernel 2.4.0 onward. The most common issue is attempting to use the cable before the driver finishes binding, which leaves the virtual COM port invisible to terminal software.
Highlights
- Connects legacy serial devices via USB with Prolific PL-2303 chipset
- Triple-shielded tinned copper conductors deliver 1 Mbps data transfer rate
- Standard USB-A to DB9 male connectors for direct equipment hookup
- Driver installation enables plug-and-play operation on Windows 11 10 8.1 8 7
- Compatible with macOS 10.6+ and Linux 2.4.0+ systems
Specifications
No published specifications for this item yet.
Other versions of this model
1 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
Questions about this item
How much power does the Prolific PL-2303 cable draw when it runs continuously?
The adapter is powered entirely by the USB port and needs no external power supply, so it draws only the standard USB bus current.
Which operating system and driver must already be present for the DB9 connector to work?
A supported OS such as Windows 11, 10, 8.1, 7, Vista, XP, 2000, 98, Mac OS X 10.6 or later, or Linux 2.4.0 and above is required, plus the one-time Prolific driver installation.
Will this cable talk to a legacy modem or barcode scanner that uses a 9-pin RS-232 port?
Yes, the male DB9 RS-232 connector is designed for serial modems, ISDN terminal adapters, barcode scanners, label writers and similar DB9-equipped devices at up to 1 Mbps.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Tripp Lite U324-003-BK USB 3.0 cable USB-A to USB-A 3 ft
- USB
- Black



