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FTDI FT232RL USB C TYPE C to DB9 RS232 Serial Adapter Converter Cable 6ft Support Win11/10/8/7/XP/Android/Mac/Linux/Vista
Aliexpress UK
USB to standard 9-pin / DB9 serial port. - Supports RS232 serial interface. - Cable Length: 0.8M (approx.).
eBay
FTDI Chip Usb to RS232 25 Pin DB25 Male Connector Serial Adapter Cable CNC Controls Programming Cable Compatib C-232R US-232R
Aliexpress UK
HL-340 USB to RS232 DB9 COM Serial Port Converter Adapter Based on CH340 Chip. 1 x HL-340 USB to RS232 DB9 COM Serial Port Converter Adapter Based on CH340 Chip. Incorporate a DB9 RS-232 serial port into your desktop or laptop computer through a USB port.
eBay
HL-340 USB To RS232 COM Port Serial PDA 9 Pin DB9 Cable Adapter Support Windows7 64
Aliexpress UK
1 USB 2.0 To RS-485 DB9 Converter cable. The USB to RS485 serial converter makes it easy to connect USB and serial devices, allowing the serial devices to have plug-and-play, hot-plugging and other functions.
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HOT USB RS232 To DB 9-Pin Male Cable Adapter Converter Supports Win 7 8 10 Pro System Supports Various Serial Devices
Aliexpress UK
MPN: PL2303. It emulates COM ports for seamless USB integration without modifying existing software. Connector B: Serial RS232. USB to RS232 Converter Module - PL2303TA Chip. Upgrading RS232 devices to USB.
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HL-340 USB to RS232 COM Port Serial PDA 9 Pin DB9 Cable Adapter Support Windows7-64
Aliexpress UK
USB To Serial Converter. Converts a USB port into 9 pin Serial (Male).
eBay
CH340G CH340 USB To TTL Serial Download Cable Convert Wire Adapter Compatible Win 7/8/10 For Arduino Raspberry Pi
Aliexpress UK
Single chip USB to asynchronous serial data transfer interface. Synchronous and asynchronous bit bang interface options with RD and WR strobes. RS232 signals: CD RXD TXD DTR GND DSR RTS CTS RI. Support Bits per second Data transfer rates from 300 baud to 921600baud (RS232 ) at TTL levels.
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Prolific USB RS232 Serial to RJ10 4P4C Converter Adapter Cable for Meade ETX-125 ETX-90 ETX-70 LXD-75 LX90
Aliexpress UK
It\'s USB to DB9 (RS-232) adapter, not aUSB to VGA (DB15) adapter. Work with Windows (10/ 8.1/ 8) and Mac, driver-free on Windows 8/ 10 under Internet connection. Length: 1.5m (5 ft). PVC cable ensure high performance and extra durability.
eBay
HL-340 New USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter support Windows7-64
Aliexpress UK