Macbook Pro, Mid 2012, 15 inch, Model: MacBookPro 9,1

I am the only owner of this macbook pro, upgraded to a new one and no longer need. The current operating system is 10.8.5 - I do not know how to update it. The computer was wiped and the original operating system was re-installed. 

The screen has two dead pixels, but everything functionally works great. Computer is a powerhouse for being a 2012 model. Battery is original and currently has 993 cycles (condition is "normal"). 

Macbook Pro comes with charger and thunderbolt to HDMI connector.

Please let me know if you have any questions.