Apple Macbook 13" Mid-2010 A1342 MC516LL/A-Core 2 Duo 2.4 GHz, 8 GB RAM, 250 GB HD , OS x 10.9 Mavericks Intel Core 2 Duo 2.40 GHz Dual-Core 8 GB DDR3-1066 250 GB HD Mac OS X 10.9 Mavericks Apple MagSafe Power Adapter