Kingston´s 64M x 72-bit (512MB) DDR333 CL2.5 SDRAM (Synchronous DRAM) ´´´´single rank´´´´ Registered ECC memory module. The components on this module include nine 64M x 8-bit (16M x 8-bit x 4 Bank) DDR333 SDRAM in TSOP packages. This 184-pin DIMM uses gold contact fingers and requires +2.5V.