This is a 16GB DDR4 ECC Unbuffered DIMM memory module from Micron, running at 3200MHz configured as 1Rx8, running at CAS latency CL22. As a ECC Unbuffered DIMM, it combines error-correcting code (ECC) protection with an unbuffered design — aimed at workstation motherboards that support ECC memory without requiring full server-grade registered memory, giving data-integrity protection for professional workloads without the RDIMM-only platform restriction. Matching capacity, speed, and form factor exactly to the target system (and, for a multi-module upgrade, matching modules to each other) is what lets DDR4 memory run reliably at its full rated speed rather than falling back to a slower, auto-negotiated speed or failing to POST altogether. It carries ECC (error-correcting code) protection, which detects and automatically corrects single-bit memory errors on the fly — valuable for workstation and server workloads where a silent, uncorrected memory error could corrupt a long-running calculation, a large dataset, or a rendered result. The module uses 16Gbit density dies. This DDR4-generation ECC UDIMM suits an existing DDR4-platform workstation that needs a straightforward, single-rank ECC memory upgrade or replacement module rather than a move to a newer DDR5 platform. As with every component in this category, it is intended for builders and IT resellers who need an exact, verifiable spec sheet before committing to a build or a client quote, not just a brand name.