3m USB-A to RS-232 Null-Modem Serial Adapter
Add a DB9 female RS-232 DCE null-modem connection to a USB-A computer with a 3m FTDI adapter that resolves crossover requirements without an extra serial cable.
Key features
Null-modem DCE serial
Add an RS-232 DCE null-modem connection to a USB-A computer and resolve DCE/DTE wiring conflicts without a separate crossover cable or adapter.
FTDI FT232R chipset
Provides RS-232 conversion at up to 921.6Kbps, with COM-port retention for consistent reassignment after reconnection or reboot.
Three diagnostic LEDs
Receive, transmit and USB-status indicators help confirm port activity, driver installation and USB enumeration.
Rugged protected construction
A one-piece TPE housing, copper shielding, gold-plated connectors and Level-4 ESD protection support dependable operation.
What to know
Connect established RS-232 equipment
Use a modern USB-A computer with compatible point-of-sale terminals, PLCs, sensors, laboratory instruments, scanners, printers, modems and other DB9 serial devices.
Choose the correct serial wiring
This model provides a DB9 female null-modem DCE connection for direct DCE/DTE crossover requirements. Confirm the connector gender, pinout and software requirements of the target equipment before ordering.
Australian version with official StarTech.com warranty
2-Year manufacturer warranty
This is the Australian version supplied by DeviceDeal and is covered by a two-year official StarTech.com manufacturer warranty in Australia. Keep your DeviceDeal invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms and product assessment.
StarTech 1P10FFCN-USB-SERIAL FAQ
What does the 1P10FFCN-USB-SERIAL do?
Add an RS-232 DCE null-modem connection to a USB-A computer and resolve DCE/DTE wiring conflicts without a separate crossover cable or adapter.
Is the 1P10FFCN-USB-SERIAL straight-through or null modem?
It is a null-modem DCE adapter with a DB9 female serial connector, intended to resolve DCE/DTE crossover requirements.
What is the maximum serial speed?
The listed maximum baud rate is 921.6Kbps, subject to the connected equipment, driver and serial configuration.
Which operating systems are supported?
StarTech lists Windows 7 and later, Windows Server, macOS 10.9 and later, Linux LTS 4.15 and later, and ChromeOS versions listed by StarTech. Always confirm the exact current version on the official support page before deployment.
Does it require external power?
No. The adapter is powered through the computer's USB-A port.
What do the LED indicators show?
The receive LED flashes green, the transmit LED flashes yellow and the USB LED shows that the driver is installed and the connection is enumerated.
What is included in the package?
The package includes 1 usb-to-null-modem serial adapter and 1 quick-start guide.
What warranty covers the 1P10FFCN-USB-SERIAL?
This Australian-version product is covered by a two-year official StarTech.com manufacturer warranty in Australia. Keep the DeviceDeal invoice as proof of purchase; claims remain subject to StarTech.com terms and assessment.
