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Black USB to DB9 serial cable, one metre long

STARTECH

STARTECH 1P3FPC-USB-SERIAL USB to serial cable 1 m 921.6 Kbps

SKU CH-VW69-4S5Z3 MPN 1P3FPC-USB-SERIAL

Connects RS232 DB9 devices to USB at up to 921.6 Kbps with COM port retention across reboots

  • Product typeSerial (COM)
  • Product colorBlack
  • Overall length3 ft (1m)
  • Connect legacy RS232 devices to modern USB ports
  • 1 metre cable fits tight server racks
  • 6 Kbps maximum baud rate for fast transfers
  • COM port retention survives system reboots
  • Prolific PL2303 chipset supports Windows, macOS and Linux

USB to serial cable

This one-metre cable connects RS232 DB9 devices to a USB port using a Prolific PL2303 chipset. It supports a maximum baud rate of 921.6 Kbps and includes a 512 byte FIFO buffer. COM port retention is maintained across system reboots. The screw-lock nuts on the DB9 connector secure the link.

Build integration

The cable draws power from the USB host so no external supply is needed. It works with Windows, macOS and Linux without extra drivers in most cases. The short 91 cm length keeps desk runs tidy in server rooms or industrial cabinets. Legacy equipment stays usable on modern computers lacking native COM ports.

Capacity and headroom

The 921.6 Kbps ceiling handles typical barcode scanners, receipt printers, PLCs and laboratory instruments. Higher-speed industrial links or multi-drop networks will exceed the available bandwidth. Parity and data-bit options cover odd, even, mark, space and none modes with five to eight data bits.

How it compares

Measured against everything we stock in RS-232 Serial Cables, at today’s prices. Recalculated every night.

Price $32.99
Pricier than about 67% of the 93 comparable items (median $21.99).

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Specifications

Product
Brand nameStarTech.com
Model name1P3FPC-USB-SERIAL
Product typeSerial (COM)
Product colorBlack
Size & build
Overall length3 ft (1m)
Shipping weight0.09 kg
Package size51 × 51 × 13 mm

Questions about this item

Will the 921.6 Kbps baud rate hold steady during long data sessions?

The adapter is rated for a maximum of 921.6 Kbps and uses a 512 byte FIFO buffer to maintain throughput under sustained load.

Does the Prolific PL2303 chipset run hot or draw noticeable power when left plugged in all day?

The cable draws power directly from the USB port with no external supply needed, and the compact design produces minimal heat during continuous operation.

Which operating system must the host computer already run for the cable to work without extra drivers?

The adapter supports Windows, macOS and Linux, so any current version of those systems will recognise it automatically.

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