Apple MacBook Mid 2010 13.3" Intel Core 2 Duo 2.40GHz 4G 256GB HDD A1278.

Has working Apple OS installed

the m key is as shown..  the M Key spot  does work if you press where the key was.  You will need to buy a new little M key and maybe the white plastic under it

(People do sell these keys on eBay)

Comes with charger

Looks like about a 256 gig hard drive and 4 gigs of memory