IncludedClean Macbook Pro 15" Late 2011. Boots and runs very fast with the SSD. Case is in good condition, with some scratches and scuffs, mostly on the bottom. Screen is in excellent condition and is very bright. Missing some screws on bottom.Processor: Intel Core i7 - 2.2 GHz Quad CoreBattery: no battery is installedRam 4GB (in 1 slot)Storage: 128GB Solid State Drive (SSD)Operating System: Mac OS 10.15 CatalinaNOT IncludedBatteryPower SupplyIssuesNo battery is included. Will need to install a working battery in order to start up this machine!The 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.