{"product_id":"startech-usb-null-modem-cable-1ft-1p1ffcn-usb-serial","title":"StarTech USB to Null Modem Cable 1ft - FTDI, DB9 RS232, COM Retention (1P1FFCN-USB-SERIAL)","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003e1-Foot USB to Null Modem Serial Cable with FTDI Chipset, DB9 RS232 Female Connector, COM Port Retention, and Level-4 ESD Protection for Direct DCE Serial Communication\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/collections\/startech\"\u003eStarTech\u003c\/a\u003e 1P1FFCN-USB-SERIAL is a 1-foot (30 cm) USB to null modem serial \u003ca href=\"\/collections\/cables\"\u003ecable\u003c\/a\u003e that adds an RS-232 DCE serial port to any computer through USB-A, resolving DCE\/DTE conflicts directly without additional cross-wired cables or adapters. The FTDI FT232R chipset delivers reliable serial communication at baud rates up to 921.6 Kbps with 128-byte RX and 256-byte TX FIFO buffers, while COM port retention automatically reassigns the same COM port value after disconnection or reboot for consistent device mapping.\u003c\/p\u003e\n\u003cp\u003eThe DB9 female connector with interchangeable nuts and screws accommodates both device-mount and cable-to-cable configurations, and gold-plated contacts with copper shielding ensure signal integrity across the full operating range of -40 to 80 degrees Celsius. Level-4 ESD protection rated at 15kV air and 8kV contact discharge protects connected equipment in industrial and commercial environments where static events are common. Drivers auto-install on Windows 7+, macOS 10.15+, ChromeOS, and Linux for true plug-and-play deployment.\u003c\/p\u003e\n\u003ch3\u003eWhere the StarTech USB to Null Modem Cable Fits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial serial equipment needing direct DCE communication from a USB-equipped PC\u003c\/strong\u003e where the null modem pinout eliminates the need for separate crossover cables or gender changers between the computer and DCE devices like PLCs, sensors, barcode scanners, and receipt printers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOS terminals and digital signage installations requiring persistent COM port assignments\u003c\/strong\u003e where COM retention ensures the serial device reconnects on the same port after power cycles or cable disconnections, preventing application errors from port reassignment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarsh environments with static discharge risk\u003c\/strong\u003e where Level-4 ESD protection (15kV air\/8kV contact), copper shielding against EMI\/RFI, and a rugged molded TPE housing withstand daily use in warehouses, factory floors, and outdoor kiosks operating between -40 and 80 degrees Celsius\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat the StarTech USB to Null Modem Cable Delivers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFTDI FT232R with 921.6 Kbps Throughput:\u003c\/strong\u003e Industry-standard FTDI chipset supports baud rates up to 921.6 Kbps with 128-byte RX and 256-byte TX FIFO buffers, 7\/8 data bits, 1\/2 stop bits, and five parity modes for broad serial protocol compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNull Modem DCE Pinout:\u003c\/strong\u003e DB9 female connector with null modem wiring resolves DCE\/DTE conflicts at the cable level, connecting directly to DTE serial devices without requiring additional crossover adapters or custom-wired cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOM Port Retention and LED Monitoring:\u003c\/strong\u003e Automatic COM port reassignment after disconnection or reboot maintains consistent device mapping, while dedicated TX, RX, and USB LEDs provide real-time visibility into port activity and connection status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable DB9 Nuts and Screws:\u003c\/strong\u003e Pre-installed DB9 nuts secure the adapter to devices with threaded studs, or swap to the included slotted thumbscrews for compatibility with serial peripherals and cables that use screw-mount connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevel-4 ESD and Industrial-Grade Build:\u003c\/strong\u003e 15kV air and 8kV contact ESD protection with copper shielding, gold-plated connectors, and molded TPE housing rated for -40 to 80 degrees Celsius delivers reliability across industrial, commercial, and field deployments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat Is a Null Modem Cable?\u003c\/h3\u003e\n\u003cp\u003eA null modem cable crosses the transmit and receive pins internally so two DTE devices (or a DTE host and a DCE device that expects DTE wiring) can communicate without an external modem or crossover adapter. The StarTech 1P1FFCN-USB-SERIAL integrates this null modem crossover into the USB-to-serial converter itself, presenting a DCE RS-232 port that connects directly to DTE equipment. This eliminates the separate crossover cable from the signal chain, reducing potential failure points and simplifying cable management in tight installations.\u003c\/p\u003e","brand":"StarTech","offers":[{"title":"Default Title","offer_id":52326757531832,"sku":"1P1FFCN-USB-SERIAL","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/9110\/4952\/files\/1083485610.jpg?v=1764187531","url":"https:\/\/islandelectricalsupply.com\/products\/startech-usb-null-modem-cable-1ft-1p1ffcn-usb-serial","provider":"Island Electrical Supply","version":"1.0","type":"link"}