Crucial 4GB (1x 4GB) DDR2-667 PC2-5300 1.8V DR x8 240-pin UDIMM RAM Module Classification_ram-ddr2-667-rdimm-4gb-1x-dr Similar to how you can

Similar to how you can upgrade a system’s preinstalled processor or graphics card and choose whichever brand you want

Guaranteed Mac Compatible

5V Technology DDR3L Error Correction ECC Signal Processing Registered Form Factor 240-pin RDIMM Ranks Dual rank Configuration x4 Pieces in Kit 1

This Quad rank

M393B1K70CH0-YH9 Capacity 8GB (1x 8GB) Brand Samsung Speed DDR3L-1333 - 1333MT/s - PC3L-10600 Voltage 1

Crucial 4GB (1x 4GB) DDR2-667 PC2-5300 1.8V DR x8 240-pin UDIMM RAM Module Classification_ram-ddr2-667-rdimm-4gb-1x-dr Similar to how you canProduct Overview This 4GB (1x 4GB) DDR2 667 MT s Dual rank, x8 configuration RAM module from Crucial is for use in DDR2 compatible systems and operates at 667 MT s with an overall transfer rate of PC2 5300. This RAM module also operates at a standard voltage of 1. 8V and is designed to allow you to run more applications simultaneously, switch between them faster, and provide a smoother computing experience. Technical Specifications Part No.