IncludedVery clean Macbook Pro 15" Late 2011. Case is in excellent condition, with only a few minor scratches. Screen is in excellent condition, and is very bright.Processor: Intel Core i7 - 2.2 GHz Quad CoreBattery: Used (317 charge cycles). Activity Monitor indicates over 3 hours after full charge (Note: we offer absolutely NO warrantee on the life or capacity of any used batteries).Ram: 4GB (in one slot)Storage: 250GBOperating System: Mac OS 10.15 CatalinaNOT IncludedPower SupplyIssuesThe 2011 15" Macbook Pros have two Graphics Processors (GPU's), and have the capability of switching between these two GPU's to offer either power savings (Integrated GPU), or faster graphics (Discrete GPU). This model of Macbook Pro has a well documented manufacturing flaw with the Discrete GPU in that they inevitably fail to function properly, and cause display irregularities. This particular Macbook Pro has been set so that it uses its integrated GPU by default in order to avoid this issue. In testing, we have verified that it functions very well.