8GB (2 x 4GB) DDR2 RDIMM 240-pin PC2-5300 667MHz Memory for Sun Blade x8440 — Black Diamond Module

Upgrade kit: 8GB (2 x 4GB) DDR2 RDIMM memory made for Sun Blade x8440 Base Assembly. These 240-pin modules follow the PC2-5300 standard and run at 667MHz. Black Diamond memory modules provide a direct, drop-in RAM expansion for the Sun Blade x8440 platform.You may also like Black Diamond 32GB (2X16GB) DDR3 1066MHz PC3-8500 240pin RDIMM ECC Registered (ECC Reg.) Memory Module Upgrade for SuperMicro X8 Series X8DTU-LN4F+.