USB to Serial
USB to Serial Adapters supporting RS232, RS422, and RS485 signals from a USB serial interface, lower OS also supported. USBGear offers the USB to serial interface adapters in single or multiple ports and various configurations including cable length, RS232 TTL (terminal block), and style.


4-Port ExpressCard Serial RS-232 Adapter Box 16C950 UART 921.6Kbps
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USB 2.0 RS-232 Serial Adapter with LED Indicators
This 3 ft. USB to Serial adapter is a tool of choice when supporting serial peripherals in newer computers without serial support. Now supported by Windows 11, this is an ideal solution for device support.
- LED activity monitoring
- Full support of RS-232 signals
- USB bus powered
- 3ft. cable connection
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High-Speed USB RS-232 Serial Adapter DB-9 Male FTDI Chipset - Windows 10
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USB to RS-422/485 Converter w/ DB9 Male Surge Protection
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Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 10kV Surge Protection & 3ft. USB Extension Cable
RS-232 | 128 Bytes Receive | 256 Bytes Transmit | FTDI
- Expand Your Serial Capabilities: The Mini Serial Adapter can be utilized through an existing USB Port to work with your legacy serial connections. It’s great for newer technologies with no serial port connections.
- Safe Connections: Designed with a unique system load reduction feature, the Mini USB to Serial Adapter also offers 15kV surge protection for connected devices.
- Upstream: 1 USB port, Type A Male Connector
- Downstream: 1 Male DB9, w/ nuts
- RS-232 Signals: DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
- Transmit Buffer: 256 Bytes
- Receive Buffer: 128 Bytes
- LEDs: TX / RX
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12in. High-Speed USB to RS-232 Serial DB9 Adapter Cable - Windows 7/8
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6ft USB to DB-9 RS232 Serial Converter with FTDI Chipset
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36 inch DB-9 Serial Adapter High Speed USB SERIAL RS-232 With FTDI Chipset
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36in FTDI USB to Serial Cable for MAC PC Linux, Win 11 w/ Tx/Rx LEDs
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USB to serial RS422/485 single port converter DB9 male connector
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USB Serial 12in. RS232 Serial Adapter FTDI Chip w/ LED & Windows 10 Support
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USB to RS-232 Serial Adapter w/ LED Indicators Windows 11 Support
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FTDI Chip USB to RS-485/422 Industrial Isolated w/ DB-9/RJ45/Terminal Screw
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USB to 5v TTL Header Like FTDI TTL-232R-5V - Supports Windows 10
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12 Inch USB to RS232 Serial Adapter FTDI Chip 920K with LED
The GearMo USA-FTDI-A12 is short and to the point! This 12 inch USB to RS232 serial adapter is the perfect portable connection for serial devices. Making use of the best FTDI Chip, RS232 serial connections are easy and convenient!
- Incorporates FTDI Chip set
- LED indication for power, RX, and TX
- Supports baud rates of up to 1Mbps
- Built-in static and surge protection
- Works with Win 7, 8, 10, and Windows 11
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36in FTDI USB to Serial Cable for MAC PC Linux with Windows 11
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Pro 5ft. USB to RS-485/422 Serial ADapter FTDI Chip - Windows 11 Supported
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USB to RS-422/485 Converter FTDI CHIP w/ Terminals
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USB to RS-422 Terminal Block Adapter
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USB to Parallel & Serial Converter for Windows Xp 2000 and Vista
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USB 2.0 to RS-232/422/485 Selectable Industrial Serial Adapter w/ 15kV ESD Surge Protection
RS-232 | RS-422 | RS-485 | 512 Bytes Receive | 512 Bytes Transmit
- Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter hub is perfect for installations in labs, warehouses, or heavy machinery.
- Safe Industrial Connections: Designed for use with Bar Code Scanners, Time Clocks, Label Printers, Point of Sale Terminals, Receipt Printers, and more the USB to Serial Adapter offers 15kV surge protection for connected devices.
- Effortless Port Configuration: The adapter is designed with external dip switches to set RS-232, RS-422 or RS-485 ports and different operation modes conveniently.
- COM Retention: COM Ports are fully configurable, and after reboots, port assignments are preserved.
- USB Power: Power is drawn from a USB connection, no bulky power supply or power outlet is required.
- Upstream: 1 USB port, Type B Female Connector
- Downstream: 1 Male DB9, w/ nuts, 1 6-pin Terminal Block
- LEDs: Power, TX / RX
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Industrial USB 2.0 to RS-232 Serial Adapter Optical Isolation
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USB-to-Optical isolated RS-422/485 Industrial Adapter
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Industrial Professional USB Serial Adapter RS232 FTDI with 5Volt Out
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10ft High-Speed USB RS-232 Serial Adapter FTDI Chipset - 11
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USB to Serial RS232 DB9 Adapter FTDI Chipset, Windows 11 Support
RS-232 | 128 Bytes Receive | 256 Bytes Transmit | FTDI
- Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to add legacy functionality to newer technologies with no serial port connections.
- Safe Connections: Designed with a unique system load reduction feature, the Mini USB to Serial Adapter also offers 15kV surge protection for connected devices.
- Plug-&-Play: The adapter’s power is drawn from a USB connection for ease of access and is compatible with Windows (up to Win 11), Mac OS, and Linux.
- COM Retention: COM Ports are fully configurable, and after reboots, port assignments are preserved.
- Upstream: 1 USB port, Type A Male Connector
- Downstream: 1 Male DB9, w/ nuts
- LEDs: Power, TX / RX
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6ft. Long USB RS-232 Serial Adapter DB-9 Male 32/64 bit WIn 7/ XP
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USB-C 2.0 to Serial RS-232 16 Inch Adapter w/ LED Indicators
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16in. USB 2.0 to RS-232 Serial Converter w/ LED Indicators & FTDI
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Industrial USB 2.0 to RS-232 Serial High-Speed Adapter w/ DIN-Rail Bracket
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FTDI 10ft. USB to Serial Adapter Cable with Screws and Three LED display
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USB to Serial RS-232 DB9 FTDI Mini Adapter with Extension Cable
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USB to RS232 Isolated TTL | CMOS Adapter Cable with TB
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USB RS485 Adapter to RJ45 FTDI chip inside
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Mini USB Serial Adapter Hi-Speed 920K FTDI Chip
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USB to Serial RS-422/RS-485 Industrial Single Port Adapter w/FTDI
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USB to RS-422 Adapter W/Terminal Block Changer (FTDI CHIP)
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USB to RS-485 Adapter W/Terminal Block Changer FTDI chip inside
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USB RS-232 Serial Adapter USB Serial Adaptor Converter Prolific Chip
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Pro Grade FTDI USB to RS-232/422/485 Adapter Selectable via Software
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USB to Serial (TTL level) converter cable 3.3Volt 6ft. Long
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USB to RS232 Serial over Cat5 Extender Kit(FTDI CHIP)
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2-Port USB to Serial Adapter COM Retention FTDI Chipset 920K Baud Rate
Gearmo 2 Port Professional USB 2.0 to Serial Converter FT2232D Chip with Power LED is a great solution when a limited number of serial ports are available.
- Utilizes FT2232D FTDI Chip set
- Automatically configures the additional COM ports
- Plug and Play allows easy installation
- 5ft. Cable Length
- Perfect for connecting serial modems, bar code scanners and others
- Supports Windows 7, 8, 10, and 11, Linux, OSX
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USB to Dual Serial RS-232 Converter USB to Serial Adapter Cable
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2 PORT USB to Serial RS-232 DB-9 Adapter Industrial Metal Housing
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Dual Port USB to Serial RS-232 DB-9 Adapter Cable FTDI Chip
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USB to Dual Serial RS-422/RS-485 Port Mountable Converter
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2-Port Professional USB 2.0 to Serial Converter w/ RX/TX Status LED
- RXD, TXD Status LED Array
- Easy Plug and Play installation
- USB interface: standard Type A female
- Baud rates up to 921.600bps
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2-Port USB to CAN Bus Adapter, DIN-Rail & Wall Mountable Metal Case
The USB-2CAN-M provides a cost-effective solution for customers to enable communication with CAN bus devices. The solution designed using an ARM Cortex-M0 32-bit micro controller and the USB to serial chip makes it very flexible in handling small burst of CAN frames at a high speed.
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2-Port USB to CAN Bus Adapter Mountable 16kV ESD 2.5kV Optical Isolation
The USB-2CAN-SI-M provides a cost-effective solution for customers to enable communication with CAN bus devices. The solution designed with an integrated ARM Cortex-M0 32-bit micro controller and the USB to serial chip makes it very flexible in handling small burst of CAN frames at a high speed.
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CableMax USB to Dual Serial DB9 5ft.Cable Adapt
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4-Port USB to RS-232 Serial DB9 Adapter Cable w/ FTDI Chip
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4-Port USB to Serial Adapter COM Retention FTDI Chipset 920K Baud Rate
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4 Port USB to RS485 High Speed Adapter w/12V DC Power Supply
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4-port USB to RS232 Adapter FTDI FT4232H & ZyWyn
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USB to RS232 Converter 4-port
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4 port RS232 to USB FTDI chip adapter w/ RX and TX Status LED
- RXD, TXD Status LED Array
- Easy Plug and Play installation
- USB interface: standard Type A female
- Baud rates up to 921.600bps
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2 Port USB Type-C To Serial Adapter w/ Per Port Rx / TX Status LED Matrix
- RXD, TXD Status LED Array
- Easy Plug and Play installation
- USB interface: standard Type-C female
- Baud rates up to 921.600bps
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4 Port USB Type-C To Serial Adapter with Per port LED Rx / TX
- RXD, TXD Status LED Array
- Easy Plug and Play installation
- USB interface: standard Type-C female
- Baud rates up to 921.600bps
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4 Port Professional RS-232 USB 2.0 to Serial Adapter w/Nuts
Add a 4 Port RS232 to USB adapter to your system without having to configure it! The USA-FTDI4x-NUT USB to Serial Adapter protects your devices from ESD and high voltage spikes and other electrical surges that may cause damage.
- Automatic handshaking
- 3ft. cable connection
- Compatible with serial office equipment
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4-Port DB-9 RS232 to USB Adapter with Isolation and Surge Protection
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Professional Quad Port USB to Serial DB-9 RS-232 Adapter
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USB 4-Port Serial Adapter / USB 2.0 Quad Port Serial DB-9 RS-232
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4-Port USB to RS-232 DB9 Serial Adapter w/ Prolific Chipset
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USB-4COMi-M USB to Quad RS-422/485 Metal case with DIN-Rail
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USB-4COMi-SI-M USB to Quad RS-422/485 Metal case with DIN-Rail
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10ft. USB 4 Port Serial Adapter USB 2.0 Quad Port Serial DB-9 RS-232
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4-Port USB DB-9 Serial Adapter Solution for Windows Operating Systems
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6ft. USB 4-Port Serial Adapter / USB 2.0 Quad Port Serial DB-9 RS-232
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4-Port Compact Industrial USB to RS-232 w/ 1m Octopus Cable & DIN Rail
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Industrial 8-Port DB-9 RS232 to USB Adapter High-Speed FTDI Chip 921.6Kbps
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USB Industrial 8-Port Serial RS-232 w/FTDI Chipset, RX/TX LED Indicators
Gearmo USB 8 Port Serial RS232 featuring FTDI Chipset with LED Indicators Industrial Version
- 8x DB9 Serial Ports
- Power, RX, TX, LED Indicators
- Surface/Wall and DIN Rail mounting brackets included
- Supports Self Power and Variable Voltage input 9 ~ 48V
- Rugged Metal Chassis
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USB USB 2.0 Serial high speed adapter box industrial 8-port RS-232 FTDI
RS-232 | 128 Bytes Receive | 384 Bytes Transmit
- Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter hub is perfect for installations in labs, warehouses, or heavy machinery.
- Safe Industrial Connections: Designed for use with Bar Code Scanners, Time Clocks, Label Printers, Point of Sale Terminals, Receipt Printers, and more the USB to Serial Adapter offers 15kV surge protection for connected devices.
- Expand Your Serial Capabilities: Connect 8 legacy 9-pin serial device through a USB-A port to add legacy functionality to newer technologies with no serial port connections.
- COM Retention: COM Ports are fully configurable, and after reboots, port assignments are preserved.
- USB Power: Power is drawn from a USB connection, no bulky power supply or power outlet is required.
- Upstream: 1 USB port, Type B Female Connector
- Downstream: 8 Male DB9, w/ nuts
- LEDs: Power, TX / RX
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USB-8COMi-RM USB to Octal RS-232/422/485 adapter metal case w/DIN-Rail
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Industrial 8-Port DB-9 RS232 to USB Adapter Isolation Surge Protection
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USB-8COMi-M USB to 8X DB-9 Port RS-422/485 Metal case with DIN-Rail
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Rugged Industrial 8-Port Terminal Block RS232/422/485 to USB Adapter
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8-Port Terminal Block RS232/422/485 to USB Isolation/Surge Protection
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8-Port RS-232 USB to Serial Adapter Data Control Box
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USB 8 Port Serial DB-9 RS-232 Adapter Box with Prolific Chipset
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USB to Serial 16-Port RS-232 Adapter Metal Rackmountable case
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Isolated USB to 16 COM RS-422/485 Serial Adapter Metal case - Rack Mount
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USB to Serial 16 COM RS-232/422/485 Rack mount adapter
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16-Port Compact Industrial USB to RS-232 w/ 1m Octopus Cable & DIN Rail
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USB to 32 COM RS-232 Serial Adapter Metal Rackmountable Case, FTDI Chipset
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PROLIFIC CHIP 16 inch DB-9 Serial Adapter High Speed USB SERIAL RS-232
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36in. USB to RS-232 Serial DB9 Adapter w/ Prolific Chip (Pl-2303HX)
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72in. USB to RS-232 Serial DB9 Adapter w/ Prolific Chip (Pl-2303HX)
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1-Port USB to Serial Adapter (RS-232/422/485) , DIN-rail
- Adds one RS-232, or RS-422, or RS-485 serial port via USB connection.
- Remote Serial Port Sharing: allows remote access to USB serial port regardless of its
physical location. - ESD surge protection of 15 KV.
- Monitor LEDs of Power, TxD, RxD indicating power & port status.
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FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter
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10ft USB to Serial Adapter Cable with Screws and Three LED display
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Prolific USB to Serial USB adapter Cable RS232 DB-9 Male 3ft converter
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2-Port USB to Serial Adapter (RS-232/422/485) , DIN-rail
- Adds two RS-232, RS-422, or RS-485 serial ports via USB connection.
- Remote Serial Port Sharing: allows remote access to USB serial port regardless of its
physical location. - ESD surge protection of 15 KV.
- Monitor LEDs of Power, TxD, RxD indicating power & port status.
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USB to serial 4 Port DB-9 RS-232 Adapter with FTDI Chip
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16-Port Industrial Serial RS-232 to USB 2.0 Rack Mount
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USB-2COMi-M USB to Dual RS422/RS-485 Industrial Adapter
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USB 2.0 Industrial Adapter User Selectable RS232/422/485 FTDI Chip
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4-Port USB to RS-232 w/ Optical-isolation, Surge Protection, Metal Case
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Dual Port DB-9 USB Serial Ultra MINI Adapter with Cable RS-232 X 2
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Dual Port USB to PS/2 & Single RS-232 Serial for Windows 98/ME/2000 & XP
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USB RS-232 Industrial Adapter Isolated and Surge Protected FTDI Chip
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USB to Terminal Wire RS422 RS485 Mini FTDI Plug-in Adapter
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2 Port USB to RS-422 /485 Optical Isolated Adapter
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USB to RS-232 Serial Adapter DB9 - 8 Inch Short Cable
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USB to RS232 TTL | CMOS Adapter Cable with Terminal Block
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USB2 to 8-Port RS232-422-485 Serial TB Adapter Isolation | Surge
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USB2 to 8-Port RS232-422-485 Serial TB Adapter
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USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter
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USB 2.0 to 4-Port RS232-422-485 Serial TB Adapter Isolation | Surge
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36 inch USB to Serial RS232 FTDI professional adapter
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USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
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USB C to RS-232 6FT Serial Adapter Black w/FTDI Chipset DB9 male
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USB C to Serial FTDI Adapter Black for Windows 10 Fully Supported!
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Industrial 8-Port DB9 RS232 to USB Adapter with FTDI Chip 921.6Kbps
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USB to RS-422 Converter Adapter Cable Gray
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USB to RS-485 Converter Adapter Cable Black
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USB 2-Port Serial RS-232 Industrial Adapter w/ FTDI Chipset
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USB Industrial 4-Port Serial RS-232 w/FTDI Chipset, RX/TX LED Indicators
Gearmo USB 4 Port Serial RS232 featuring FTDI Chipset with LED Indicators Industrial Version
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