This is a 16GB DDR4 Registered DIMM (RDIMM) memory module from Micron, running at 3200MHz configured as 2Rx8, running at CAS latency CL22. As a Registered DIMM (RDIMM), it is a server-class module — the on-module register buffers the command/address signal, which reduces electrical load and lets a server motherboard reliably support many densely-populated DIMM slots, but it requires a server/workstation platform whose memory controller specifically supports registered memory, and will not work in a typical desktop board. 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 ships with ECC protection with the register that defines RDIMM memory. The module uses 8Gbit density dies. A dual-rank 16GB RDIMM of this kind is a common entry-level building block for populating a DDR4-generation server or workstation platform's memory channels with registered ECC memory. 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.