: The device will appear as a removable drive on your computer. Open it and drag-and-drop your book files (e.g., FB2, EPUB, PDF) into the "Internal Storage" or a specific folder you’ve created.

your PocketBook 624 to your computer using a micro-USB cable.

: Always use "Safely Remove Hardware" before unplugging the cable to avoid data corruption. Method 2: PocketBook Cloud & Dropbox

Как пользоваться сервисом PocketBook Cloud