alt Hacker NewsNo you can't do that on a kindle. They have a "send to kindle" feature that allows you to add non-Amazon purchased ebooks to your library. But that requires support from the backend (and an internet connection).
I'm assuming send to kindle will no longer be supported on these older devices.
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squeaky-clean • yesterday at 8:21 PM
I have a Kindle that took a fall about 8 years ago and the wifi has never worked since then. I've been able to load books onto it using USB with no issues.
You can send books to your kindle over USB, and I do that all the time for larger books that are above the size limit on the email system.
The big problem is that Amazon no longer allows you to download books from their site to your desktop, so you have no way to actually get a purchased book and send it to the kindle even over USB. However, if you buy non-DRM books from other book sellers you won't have this problem.