This is a 16GB DDR5 compact SO-DIMM memory module from ADATA, running at 5600MHz. As a compact SO-DIMM, it installs into a laptop, notebook, mini-PC, or other small-form-factor system with SO-DIMM memory slots rather than a full-size desktop. 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 DDR5 memory run reliably at its full rated speed rather than falling back to a slower, auto-negotiated speed or failing to POST altogether. This module belongs to ADATA's Premier line, the brand's mainstream memory series. At 16GB in notebook format, this is a solid mainstream capacity for everyday laptop productivity and general multitasking on a current-generation 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.