Memory Size: 2 GB Memory Technology: DDR3 SDRAM Number of Modules: 2 x 1 GB Memory Speed: 1066 MHz Memory Standard: DDR3-1066/PC3-8500 Error Checking: Non-ECC Signal Processing: Unbuffered Physical Characteristics Number of Pins: 204-pin Form Factor: SoDIMM Thickness: 44.5 mm Length: 66 mm Standard Warranty: Lifetime Limited