Top grade chips and components - Each Axiom memory module is manufactured to meet or exceed OEM specifications.Fully tested - All memory modules that leave our warehouse are fully tested to guarantee quality and reliability.Guaranteed compatibility - Axiom guarantees that each system specific module will work with its corresponding OEM computer.Lifetime warranty - Once you purchase an Axiom memory module, you never need to worry about failure because all Axiom memory modules come with a lifetime warranty.Free unlimited tech support - Speak to a real human being and not a computer message. Tech support is available to every one of our customers via phone or email.Physical SpecsDimensions: 67.60mm x 30.0mm x 3.8mm Weight: 0.009lb ECCN: EAR99 HTS: 8473.30.1140 :| Memory Size: 4 GB| Memory Technology: DDR3 SDRAM| Number of Modules: 1 x 4 GB| Memory Speed: 1600 MHz| Memory Standard: DDR3-1600/PC3-12800| Error Checking: Non-ECC| Signal Processing: Unbuffered| Number of Pins: 204-pin| Form Factor: SoDIMM| Thickness: 149.6 mil. .