Type: 240-Pin DDR2 Capacity: 4GB Speed: PC2-6400 800 MHz Voltage: 1.8V Buffering/ECC: Non-ECC Unbuffered Color: Green Material: PCB + Metal Package Contents: 4 x 4GB PC2-6400 800MHz Desktop Memory Modules Note: It is generally difficult for processors suitable for DDR2 to support 16GB capacity and 800MHz speed simultaneously. This memory is compatible only with AMD CPU motherboards and is not compatible with Intel CPU motherboards. Not compatible with motherboards using G41, P43, P45, H55, H61, H67, B75, or Z77 chipsets. Not compatible with Packbell computers. Products from different batches may have slight variations, but these do not affect functionality. The package includes only the items listed; other products are not included. Note: Lighting and display differences may cause the color of the item in the image to vary slightly from the actual product. Measurement error allowance is +/- 1-3 cm.