Product_description: ['EDGE Tech memory products provide maximum power speed quality and reliability. Products are double-tested to provide a high-quality and reliable memory upgrade. EDGE Tech memory allows users to maximize system performance resulting in quicker document rendering quicker saves and loads and rapid game play. EDGE Tech memory upgrades are the fastest way to upgrade your computer system. This memory is designed for the following systems: Apple MacBook Pro 154-inch 1.83GHz (MA463LL); Apple MacBook Pro 15.4-inch 2.0GHz (MA464LL).Primary InformationRAM Type :  DRAM RAM Technology :  DDR2 SDRAM RAM Upgrade Type :  System specific RAM / Memory Speed :  667 MHz RAM Form Factor :  SO DIMM 200-pin RAM / Storage Capacity :  1 GB Data Integrity Check :  non ECC Features :  Unbuffered UNSPSC CodeUNSPSC Code :  32101602 '] (Page 1)