AddOn AM667D2DFB5/4G x2 HP 397415-S21 Compatible Factory Original 8GB DDR2-667MHz Fully Buffered ECC Dual Rank 1.8V 240-pin CL5 FBDIMM

These parts are FACTORY ORIGINAL Tier 1 modules (from either Samsung, Micron, Hynix, Infineon, etc.). You cannot buy a better module, and there is a good chance that it is an identical module you may get directly from the OEM. All AddOn modules are built to meet or exceed OEM specifications, and JEDEC standards. All memory modules come with a Lifetime warranty and are 100% guaranteed compatible for the appropriate systems it is intended for.

• Allow convenient and fast access to the stored information your computer is actively using for maximum efficiency
• 667 MHz of memory speed makes your computer perform like an athlete
• 8 GB of memory makes a perfect symmetry with your latest model processor and boosts up your computer’s performance
• 240-pin-pin DDR2 SDRAM operates at up to 400 MHz data bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation
• 2 x 4GB modules for enhanced memory reliability and productivity
• 240-pin for enhanced, dependable system performance with maximum usability
• DIMM form factor with 240-pin and 8 GB memory size for enhanced performance and speed to allow maximum usability
• Fully Buffered signal processing for dependable programmability of the processor for easy optimization of digital signals