Crucial CT6464AC667 0.5 GB (1x512GB DDR2-667)

The Crucial CT6464AC667 0.5 GB comes as a single module with 512GB of DDR2 on board. It is rated at 667 MT/s with a CAS latency of 5, working out to a true latency of about 15ns. Operating voltage sits at 1.35V. For gaming, capacity matters more than raw speed past 3600 MT/s — 512GB comfortably covers gaming plus heavy multitasking and content work.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Support and warranty service run through Crucial, with terms that vary by region. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.