Plug-in USB2.0 9PIN to 2 9PIN. 1 plug-in USB2.0 9Pin to dual 9Pin Male adapter. Use this product, two USB2.0 9pin interfaces can be expanded on the motherboard USB2.0pin interface, which is very convenient.
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HL-340 USB To RS232 COM Port Serial PDA 9 Pin DB9 Cable Adapter Support Windows7 64BIT
Aliexpress UK
USB to standard 9-pin / DB9 serial port. - Supports RS232 serial interface. - Cable Length: 0.8M (approx.).
eBay
Ugreen USB to RS232 COM Port Serial PDA 9 DB9 Pin Cable Adapter Prolific pl2303 for Windows 7 8.1 XP
Aliexpress UK
DB9 cable to USB adapter is designed for connecting devices. Adapter Cable: USB to Converter is providing USB and RS-232 connection, a RS232 USB to female adapter cable, allowing any PC to connect to devices and programs that communicate through the COM port.
eBay
Motherboard USB2.0 9Pin To TYPE-E Female Adapter Plug & Play TYPE-C Socket 9-Pin USB 2.0 Extender
Aliexpress UK
Dual USB 2.0 Female Panel Mount to 9 Pin Female Motherboard Cable. The cable is designed to allow you to connect USB devices directly to your motherboard header connection. 90° Left Angle Micro USB 5pin Male to USB B Female Panel Mount Printer Cable.
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Motherboard USB 2.0 9-Pin To Type-E Front Panel Header Extension Adapter TYPE-E Interface Header
Aliexpress UK
The item is a USB 3.0 20 Pin Male to USB 2.0 9 Pin Motherboard Female Cable. It connects the USB 3.0 20 pin device connected to the USB 2.0 9 pin motherboard. The speed will be limited to USB 2. Model: 20-pin Male to 9-pin Female cable.
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Mini USB Female to Micro USB Male 8 pin to 5 pin Connector Adapter OD4.0mm line for Smart Phones
Aliexpress UK
The applicable motherboard only has a USB2.0 9‑pin socket, no USB3.0 19‑pin socket, but the chassis has a USB3.0 19P patch cord connector. Motherboard USB2.0 9‑pin to USB3.0 19P patch cord connector.
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1pc USB Mini 5 Pin Male to Mini USB 5 Pin Male Extention Adapter Cord M/M Cable 50cm
Aliexpress UK
USB 2.0 to Serial RS-232 RS232 DB9 9 Pin Adaptor Converter Cable Lead Wire UK. CH340 DB9 RS232 Male Serial Port to USB 9 Pin Converter Adapter Cable Win XP 7. Support RS232 serial interface (DB25 or Db9).
eBay
USB 3.0 front panel, floppy drive, location, expansion card, 19 pin/20 pin to USB 3.0, adapter cable
Aliexpress UK
Features: Transform your motherboards connection with the USB 2.0 Front Panel Header Adapter, converting a traditional 9PIN to a modern TypeE port enhances compatibility and expansion. Specifications: Item：USB2.0 9PIN male to TypeE Female Adapter.
eBay
USB Female Terminal Data Cable PH2.0 4P 2.54mm Motherboard Cable USB To Dupont 4 Pin Adapter
Aliexpress UK