1 x Data Cable. (this ordinary machine can be used, but large machines can't be used). It is characterized by good compatibility (other low-grade products on the market have incompatibility problems among various devices, so it is difficult or even impossible to use them after buying them back. ).
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USB 3.0 To Type-C OTG Adapter USB Type C Male To Micro USB Female Converter for Macbook Samsung S20 USB C OTG Connector
Aliexpress UK
Support the RS232 Serial interface. Transfer your RS232 device to a USB device. Colour: Blue.
eBay
28cm USB Cable Extension Cord With Switch ON/OFF Cable Adapter USB Male-to-master Data Cable Power Supply For USB Lamp USB Fan
Aliexpress UK
Model: US015. Easily connect RS‑232 full‑duplex asynchronous serial devices to any host that supports Universal Serial Bus (USB). Item Type: Serial Port Cable. Interface Type: USB to RS-232. 1 x Serial Port Cable.
eBay
NNBILI 4Pcs USB To Type C OTG Adapter USB USB-C Male To Micro USB Type-c Female Converter For Macbook Samsung USBC OTG Connector
Aliexpress UK
Model: US015. Easily connect RS‑232 full‑duplex asynchronous serial devices to any host that supports Universal Serial Bus (USB). Item Type: Serial Port Cable. Interface Type: USB to RS-232. 1 x Serial Port Cable.
eBay
USB to USB C Adapter 2 Pcs, USB C Female to USB 2.0 Male Adapter Type C Charge Converter for Apple iWatch Watch Series 7 SE, iP
Aliexpress UK
The 1 ft USB to RS232 Serial DB9 Adapter Cable by StarTech allows for easy connectivity between a USB device and a serial port. With a compact cable length of 1 foot, this adapter is ideal for short-distance connections. The USB connector ensures compatibility with a variety of devices, making it a versatile and convenient solution for transferring data between different systems.
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Vention USB Printer Cable USB Type B Male to A Male USB 2.0 Cable for Canon Epson HP ZJiang Label Printer DAC USB Printer
Aliexpress UK
USB to standard 9-pin / DB9 serial port. - Supports RS232 serial interface. - Cable Length: 0.8M (approx.).
eBay
Vention USB Extension Cable USB 3.0 Cable Male to Female 3.0 2.0 USB Extender Cable for PS4 Xbox Smart TV PC USB Extension Cable
Aliexpress UK
Model: US015. Easily connect RS‑232 full‑duplex asynchronous serial devices to any host that supports Universal Serial Bus (USB). Item Type: Serial Port Cable. Interface Type: USB to RS-232. 1 x Serial Port Cable.
eBay
3-in-1 USB HUB USB 3.0 Adapter USB Docking Station USB Splitter Extender OTG Adapter 5Gbps High Speed for PC Laptop Macbook
Aliexpress UK
Interface: USB Male to RS 232 Male (9pin). Transmission rate. This is not a USB to VGA cable or a USB to DB9 cable. Item Type: USB to Serial Adapter. 1 x USB to Serial Adapter. LONG ENOUGH: Tinned copper conductors and triple shielding ensure optimal data transfer rates, protect your data from EMI/RFI noise, and are long enough to be useful, but not too long to get in the way.
eBay
5-in-1 USB 3.0 HUB 5Gbps USB C Docking Station PD 65W Type C to USB HUB USB 3.0 Splitter OTG Adapter For PC Laptop Macbook Pro
Aliexpress UK