Uploading output files - ciromattia/kcc GitHub Wiki
Kindle
There are currently five methods to upload a ready file to Kindle. The book will work regardless of the chosen method.
Manual USB upload
Just drop MOBI to Documents folder on your Kindle. For older Kindle models, check auto cover upload.
KindleButler
Both USB and SSH upload is working correctly. In both cases, covers will be displayed in library view on newer Kindle models.
Send to Kindle
As long MOBI is smaller than 50MB this method should work correctly.
Kobo
Manual USB upload
Upload it like a normal book.
Other
Just use normal methods available for your device.