A1581333 – Dell 2GB PC2-6400 DDR2-800MHz non-ECC Unbuffered 200-Pin SDRAM SoDimm Memory Module for Latitude D631 Brand : Dell Weight : SODIMM Capacity : 2GB Data Transfer Rate : 800Mhz Pins : 200 Pin Bus Type : PC-6400 Error Correction : Non-ECC Cycle Time : 5ns Cas : CL6 Memory Clock : 200Mhz Rank : Rank 2 Voltage : 1.8