StarTech.com 3ft (1m) USB to Null Modem Serial Adapter Cable, COM Retention, FTDI, RS232, Changeable DB9 Screws/Nuts, Windows/macOS/Linux

Add RS-232 DCE serial communications support to a desktop or laptop computer and resolve DCE/DTE conflicts directly without the need for additional cross-wired serial cables or adapters.

Serial Port Expansion

The 3.3ft (1m) Null Modem USB Serial Adapter adds an RS-232 serial DB/DE-9 (female) connector to a desktop or laptop via a USB Type-A port. Secure the adapter to a serial device, using pre-installed and removable slotted D-Sub thumbscrews or install the included DB-9 Nuts for compatibility with other serial peripheral devices or cables.

LED Indicators

Data transmission and reception LED indicators on the adapter provide real-time monitoring of port activity. The USB LED indicates when the adapter has successfully enumerated on the desktop or laptop. All the LEDs aid with diagnostics and troubleshooting.

Seamless Connectivity

The adapter is compatible with Windows, macOS, ChromeOS, and Linux. Drivers automatically install to Windows 7 and newer versions, macOS 10.15 and above, and Linux. The USB to RS-232 adapter features COM retention, which automatically reassigns the COM port value if the cable is disconnected and reconnected, or if the system is rebooted.

Built To Last

The rugged TPE construction and Level-4 ESD protection (15kV air and 8kV contact) enhance the reliability and longevity of the USB to Serial Adapter. Copper shielding minimizes Electromagnetic and Radio Frequency Interference (EMI and RFI). Gold-plated connectors enhance signal conductivity.

• INTERCHANGEABLE NUTS & SCREWS: Secure the adapter to a serial device using the pre-installed DB9 screws, or install the included DB9 Nuts for compatibility with serial peripheral devices/cables; Add a null modem RS232 port to a computer using a USB-A port
• LED INDICATORS: Transmit and Receive LED indicators offer real-time monitoring of port activity, while the USB LED indicates when the adapter is successfully recognized by the desktop or laptop
• COMPATIBILITY: Works with Windows, macOS, ChromeOS, and Linux; Drivers auto-install in Windows 7+, macOS 10.15+, and Linux; COM retention enables the COM port to automatically re-assign; Resolve DCE/DTE conflicts without using cross-wired cables/adapters
• BUILD QUALITY: Solid one-piece molded TPE housing and Level-4 ESD protection (15kV air/8kV contact) enhance the serial adapters reliability and longevity; Copper shielding minimizes EMI/RFI interference; Gold-plated connectors
• TECH SPECS: 3.3ft (1m) Cable Length; FTDI FT232R Chipset; Max Baud Rate: 921.6Kbps; 128 Byte RX and 256 Byte TX FIFO; Odd/Even/Mark/Space/None Parity Modes; 7 or 8 Data Bits; 1 or 2 Stop bits