We have tested several different cables on the market and can highly recommend the one from IKEA – it works great for both charging and downloading. You can buy it directly from IKEA – here is the link: SITTBRUNN USB-A to USB-C, light yellow, 1 m - IKEA

Use a cable with USB-C in the reading pen and USB-A in the computer for charging and file transfer.

Product information from IKEA

The SITTBRUNN USB cable is made of PVC-free TPE plastic, which makes it very flexible and functional.

The cable has been tested to withstand bending 25,000 times without damage.

The cord is 1 meter. It is the standard length of cables that usually come with your phone and makes it comfortable and practical to use.

The USB-C connector has overheating protection that prevents the cable from melting and damaging your devices while charging.

Compatible with the most common and popular electronic devices.

We have also tested two variants from Biltema that work well: USB cable 1m , USB cable 2m .