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USB-A to DB9 serial cable 1.8 m black moulded connectors

BFKK

BFKK USB to RS-232 DB9 serial cable 1.8M Prolific PL-2303

SKU CH-NEXM-8JMD1

Connects serial devices such as modems, barcode scanners and PDAs via USB with 1 Mbps transfer rate

Style Male Screw

  • Connect serial devices via USB with 1 Mbps transfer rate
  • USB Type-A to DB9 male connector for legacy equipment
  • Tinned copper conductors and triple shielding ensure reliable data
  • Prolific PL-2303 chipset supports Windows 98 through 11
  • Works with Mac OS X 10.6+, Linux 2.4.0+ and more

USB to RS-232 serial adapter

This BFKK cable converts a USB Type-A port into a male DB9 RS-232 connector for legacy serial devices. It targets technicians and hobbyists who need to configure modems, barcode scanners, label writers or industrial equipment through a modern computer.

Practical limits of the USB-RS232 bridge

The Prolific PL-2303 chipset delivers a maximum data rate of 1 Mbps over the 1.8 m cable. Triple-shielded 24/28 AWG tinned copper conductors protect signal integrity, but the link remains bound by standard RS-232 voltage levels and distance constraints. No video or audio transmission is possible; the DB9 connector is not a VGA interface.

Driver installation and common issues

Windows 11 through 98, macOS 10.6 and later, and Linux kernel 2.4.0 onward are supported after a one-time driver install. The adapter draws power from the USB port so no external supply is needed. Failures usually stem from missing or mismatched PL-2303 drivers, incorrect COM-port settings in terminal software, or loose thumbscrews on the DB9 shell.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $17.99
Pricier than about 70% of the 15,227 comparable items (median $14.99).

Specifications

No published specifications for this item yet.

Other versions of this model

1 more in the same range

Questions about this item

Is the 1.8 m cable the only length offered?

The adapter ships as a single 1.8 metre USB Type-A to DB9 assembly with tinned-copper conductors and triple shielding.

What does the 1 Mbps transfer rate mean for a barcode scanner or label printer?

The PL-2303 chipset delivers up to 1 Mbps, which is ample for typical RS-232 peripherals such as barcode scanners, label writers and serial modems.

Does the DB9 connector follow the RS-232 pinout and voltage levels?

Yes, the male 9-pin DB9 connector uses the standard RS-232 pinout and signalling levels for direct connection to serial equipment.

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