Accelerate your Dell PowerEdge 2550 systems with memory engineered for your system. You can rest easy knowing that Dell's memory is built with superior quality parts. Gone are the days of worrying about data loss or a sluggish system with Dell memory's cost-effective and easy-to-install upgrades. Unleash the power of your computer. Trust only Dell memory for your next Dell system upgrade!The 846092-1 is installed in pairs of modules. Please order quantity two.