For sale is a gently used Kindle Keyboard also known as the K3. This kindle is no longer supported by Amazon, and you can't register it to your Amazon account or download your Amazon books onto it. So, it's only for sideloading DRM-free books. If you don't know what DRM is, this probably isn't the right kindle for you.

The kindle works great. The battery is NEW - I replaced it myself. The kindle is in good condition. The screen has two silvery spots near the top. Check out the photos to see if it's a deal breaker for you. There are a couple very minor scratches in the upper right corner that are not visible while reading. The body has some scuffs, and a hairline crack going down from the bottom right corner of the screen. The rear panel has someone's name written in magic marker. I've rubbed it with alcohol, which helped fade it, but it's still visible. You might want to put a sticker there or something.
I have jailbroken the kindle and installed KOReader. I'm somewhat new at ROReader, so I can't help you too much with that, but there's lots of info online. If you're on the main kindle screen, you start KOReader by picking the "book" KUAL, then KOReader. I've put books in the Books folder, and set the Books folder as the Home screen, but of course you can change settings. One book I've included is The Wizard of Oz Omnibus which has all 14 books from the Wizard of Oz series.
The kindle uses micro-USB and I am including a USB-C to micro-USB adapter so you can use any USB-C cord with it. If you really need a USB-C cord, let me know and I can include one. There are 2 decals on the back that I put on - I use them to ensure I'm sending the right kindle to the right person, and I also like how they feel while holding the kindle, but they'll come off cleanly if you don't like them.
Smoke-free home. It'll be shipped USPS Ground Advantage with a tracking number. If you have any questions, don't hesitate to ask.