Memory Size: 8 GBMemory Technology: DDR2 SDRAMMemory Voltage: 1.80 VNumber of Modules: 2 x 4 GBMemory Speed: 800 MHzMemory Standard: DDR2-800/PC2-6400Error Checking: Non-ECCSignal Processing: UnbufferedCAS Latency: CL6Number of Pins: 240-pinForm Factor: DIMMThickness: 126 milWidth: 1.2"Length: 5.3"Weight (Approximate): 1.14 ozPatriot Memory's Signature Line DDR2 Non-ECC Unbuffered memorydelivers quality, reliability and performance expected for today's computerneeds. This 8GB kit (2 x 4GB modules) is designed to run at PC2-6400(800MHz) at CAS 6 latency timings. Built using specific build-of-materials(BOMs) we ensure that every module meets and exceeds industrystandards: offering you a hassle-free upgrade. We certify every componentthat goes into our modules, including the modules themselves, which mustpass strict standards to ensure compatibility, quality and reliability. Withfree customer service and a lifetime warranty, Patriot Memory's Signaturememory modules are a perfect system upgrade option.