DELL 16GB 4x4GB MEMORY SNPX1564C/4G FOR PowerEdge 1800 1850 2800 2850 Brand: Major Brand MPN: SNPX1564C/4G Type: DDR2 SDRAM Number of Modules: 4 Capacity per Module: 4 GB Number of Pins: 240 Bus Speed: PC2-3200 400MHz Compatibility: Dell PowerEdge 1800 1850 2800 2850 6800 6850 SC1420 SC1425 Warranty: 90 Days Replacement This Memory for Workstation and Server ONLY!!!!!!