Note: Compatible only with FBD Server motherboards. Non-ECC, non-registered, not for desktop or laptop use. Confirm compatibility before purchase. FBD stands for Fully Buffered DIMM, a serial transmission technology designed to enhance memory capacity and transmission bandwidth. This is a new type of memory module and interconnect architecture developed based on DDR2 and DDR3 technologies. FB-DIMM significantly improves system memory bandwidth and increases maximum memory capacity. Capacity: 8GB Speed: DDR2 667MHz Number of Pins: 240 pins Type: Memory RAM Voltage: 1.7V Note on System Recognition: Windows XP recognizes approximately 3GB Windows 7 32-bit recognizes approximately 2.26–4.5GB Windows 7 64-bit recognizes up to 8–16GB Before purchasing, verify compatibility with your system. Common DDR2 designations include: PC2-4200 = DDR2 533MHz PC2-5300 = DDR2 667MHz (compatible with DDR2 533MHz) PC2-6400 = DDR2 800MHz (compatible with DDR2 667MHz and DDR2 533MHz) PC2-8500 = DDR2 1066MHz Product appearance and color may vary between batches; this does not affect functionality. Size: 13.3cm Material: Metal + PCB Color: Blue + Green Package Contents: 1 x RAM module Note: Lighting conditions and display settings may cause slight variations in color representation. Measurement tolerance: ±1–3cm.