8GB 4X2GB RAM PC2-5300E 2RX8 DDR2 ECC Unbuffered For Dell PRECISION T3400 380 Brand: MICRON MPN: MT18HTF25672AZ-667H1 Type: DDR2 SDRAM Number of Modules: 4 Capacity per Module: 2 GB Memory Features: ECC Memory Number of Pins: 240 Bus Speed: PC2-5300 667MHz Typical Operating Supply Voltage: 1.8V Compatibility: DELL PRECISION 380 390 390N T3400 and Desktop DELL, IBM, Toshiba, Compaq etc. Warranty: 90 Days Replacement This Memory for Workstation and Server ONLY!!!!!!