Micro USB to RS232 Serial Cable, RS232 DB9 Male Serial COM Port to Micro USB Serial Converter Cable
Aliexpress UK
Support RS232 serial interface (both DB25 and DB9). The USB to Serial/Parallel Adapter provides the connection between USB and the traditional RS-232 serial port. Since the adapter uses no IRQs, it is perfect if you need many serial devices attached to your PC.
eBay
FTDI USB to RS232 Male DB9 Cable Serial COM Port Adapter Chip FTDI USB R232 converter cable Windows
Aliexpress UK
1 x RS232 to USB 2.0 Cable for PC. Connect the USB serial cable to the computer's usb interface, it will automatic identify and setup. Smart USB to RS-232 (DB 9-pin male serial port) interface. USB specification 1.1, and USB 2.0 compliant.
eBay
New USB to RS232 COM Port Serial Port 9 Pin DB9 Cable Serial Adapter Convertor With Female Adapter
Aliexpress UK
Sabrent USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable (CB-DB9P).
eBay
USB to RS232 Cable DB9 COM Port Serial PDA 9 Pin DB9 Converter Adapter For Computer PLC
Aliexpress UK
Support the RS232 Serial interface. Transfer your RS232 device to a USB device. Colour: Blue. Support automatic handshake mode.
eBay
Newest USB 2.0 to RS232 Serial Converter 9 Pin Adapter Serial PL2303 DB9 Plug Adapter Computer
Aliexpress UK
Support the RS232 Serial interface. Transfer your RS232 device to a USB device. Colour: Blue.
eBay
2Pcs CH340 USB to RS232 Serial Port 9 Pin DB9 Cable Serial COM Port Adapter Convertor Support
Aliexpress UK
Connectors: With Standard Usb Type A Male To Standard 9-pin Db9 Rs-232 Serial Connector. This Usb 2.0 To Rs-232 Serial Adapter Connects With Modems, Isdn Tas, Pds, Handheld & Pocket Pcs, Digital Cam, Pos, And Serial Label Printer Devices With Db9 Serial Ports.
eBay
USB to Null Modem (Cross Wired) RS232 Serial Adapter FTDI ft232r USB RS232 to DB9 Female Adapter
Aliexpress UK
COM ports and Baud rates can be modified to desired set up. Interface: USB - 1.1 Type A RS-232 (9-pin) Male. USB 3.1 Type E Front Panel Header Male to USB 3.0 MotherBoard IDC 20 Pin Cable. HDMI Right Angle 8K Cable For Apple TV Roku Fire TV Switch Vizio Sony LG 1.8m.
eBay
80cm High Quality USB 2.0 to Serial RS-232 DB9 9Pin Chipset SUPPORT Adapter USB RS232 ch340 Cable
Aliexpress UK
The USB to DB9 provides a connection between an available USB port and the more traditional RS-232 serial port found on many devices. Simply plug your device into the adapter and the adapter into your PC or Mac.
eBay