AddOn 16GB PC3-8500 DDR3-1066MHz ECC Registered CL7 240-Pin DIMM Quad Rank Memory Module for PowerEdge Servers. The Dell 16GB PC3-8500 DDR3-1066MHz ECC Registered CL7 240-Pin DIMM Quad Rank Memory Module is designed for PowerEdge servers, ensuring reliable performance and compatibility. With a capacity of 16GB and operating at 1066MHz, it supports ECC (Error-Correcting Code) for data integrity and features a CL7 latency. This module is ideal for enhancing server capabilities, offering robust memory support for critical applications and workload demands.