4GB DDR2-533 RAM Memory Upgrade for the Compaq HP Business Notebook 6000 Series 6715b (RM175UT#ABA) (Genuine A-Tech Brand) 4GB DDR2-533 RAM Memory Upgrade for the Compaq HP Business Notebook 6000 Series 6715b (RM175UT#ABA) 100% Genuine A-Tech Brand Memory 4GB DDR2-533 PC2-4200 Non-ECC Unbuffered 200 Pin 1.8V CL=5 Memory Limited Lifetime Warranty High Quality Ram specifically designed for the Compaq HP Business Notebook 6000 Series 6715b (RM175UT#ABA)