AddOn 16GB PC3-8500 DDR3-1066MHz ECC Registered CL7 240-Pin DIMM Quad Rank Memory Module for PowerEdge Servers. The AddOn 16GB DDR3-1066MHz ECC Registered memory module is designed for PowerEdge servers, ensuring reliable performance and stability. With a capacity of 16GB and operating at 1066MHz, this quad-rank DIMM module enhances server capabilities for intensive workloads. It features ECC (Error-Correcting Code) for data integrity and has a CL7 latency for efficient processing. Ideal for upgrading server memory, it conforms to 240-pin DIMM standards and supports robust, high-performance computing environments.