AddOn 16GB PC4-17000 DDR4-2133MHz ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank Memory Module. The 95Y4821-AM AddOn 16GB PC4-17000 DDR4-2133MHz ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank Memory Module is a high-performance addition to your server infrastructure. Built to meet the demands of enterprise-level computing, it offers 16GB of DDR4 memory operating at 2133MHz, ensuring robust performance and reliability. Featuring ECC (Error-Correcting Code) technology, it enhances data integrity and system stability, crucial for mission-critical applications. The module’s dual rank design optimizes memory bandwidth, while its low 1.2V power consumption contributes to energy efficiency.