This is a model A1398 (Late 2012, Retina MacBookPro10,1) with a Core i7 2.6Ghz processor, 16GB of RAM, and a 500GB SSD (flash) hard drive. As of the date of this posting, it is completely up-to-date with macOS Sierra 10.12.3. I have also posted a screenshot of the Coconut Battery details of the battery.

The SSD drive has been wiped and will arrive ready to setup and activate, just like new!

Disclaimers: I purchased this MacBook while I lived in England and thus it has a UK keyboard (£ instead of # on the number 3 key; see photo) and the magsafe power brick is UK (I am including the UK-to-US adaptor that I have been using on the notebook since moving back to the US; see photo). Additionally, there is minimal usage wear, but there is a small dink in the left-front of the clam shell (see photo). The screen is literally perfect, no scratching or cracks.