KEM-860PAA is the laser lens slide deck with KES-860 double eye reading pickup head. It?s the perfect replacement part for 1st gen PlayStation 4 CUH-10XX. All the necessary repair tool kit are included: Quality thermal paste, T8 torx security screwdriver, spudger pry opening tool and pre-moistened wipes are included for smooth teardown and assembly. Sealed in ESD bag and replacement guide was provided on ElecGear official siteWhen to Replace: Disc reading error; Disc not recognized; Doesn't read certain games; Disc loading time takes longer than before; Screen flickering or scenes skipping; Discs seems damaged or dirty on the screenWhich Model to Choose: Sony has been changing its PS4 internal parts including this laser drive model. Even the PS4 with the same CUH- number may came with different internal parts with different model number. It?s a must to check which one is yours before ordering. Dismantle the Blu-ray drive, compare it with the pictures, choose the right one: ?KEM-860PAA (KEM-860AAA) - features double laser eye - fits BDP-010 and BDP-015 DVD drive daughterboard, usually found in CUH-10XX console models ?KEM-490AAA - features single eye - fits BDP-020 and BDP-025 DVD drive daughterboard, usually found in CUH-11XX and some CUH-12XX consoles ?KEM-496AAA - feathers single eye - fits PS4 Slim and PS4 Pro (CUH-20XX and CUH-70XX). Also found in some CUH-12XX consoles(Be noticed: This correspondence between console CUH- number and laser deck model is roughly estimated. Not accurate! It?s a must to check which one is yours before ordering!) What?s in Package: 1*KEM-860PAA Laser mechanism motor slide with lens assembly 1*TR8 Torx security precision screwdriver 1*HY-880 Thermal Grease (1 gram Edition) 1*Plastic Spudger 1*Wet and Dry Wipes