Capacity:512MB Module - PC3200 (PC400) 512MB RAM Memory for Alienware Area-51 Extreme (PC3200 - Non-ECC) - Desktop Memory Upgrade Part Number :- FT64MLD64V4F-1653498 Capacity :- 512MB Module Form Factor :- DIMM 184-pin Memory Type :- DDR SDRAM Bandwidth :- PC3200 (PC400) Memory Specs :- 184 Pin 2.6v DDR400 Non-ECC Dimm Equivalent to OEM Part :- 1653498-AL-512 Premier Brand Memory We only use branded memory modules from leading manufacturers which includes but is not limited to :- Samsung, Hynix and Micron. 100% Compatibility Every memory product matched specifically to your machine is individually tested to guarantee reliability and 100% compatibility with your computer and operating system. Limited Lifetime Warranty Feel confident that your memory will last a lifetime. Our limited lifetime warranty guarantees that if your memory should ever fail we will replace or repair the product free of charge provided that it is still manufactured. Similar to RAM