The item MS8192QNA106 is a memory upgrade for QNAP Systems 563, which comes with 2 GB of RAM by default. The QNAP Systems 563 can be upgraded to a maximum of 16 GB of RAM. For maximum memory expansion, the device has 2 slots. Sometimes, the manufacturer's specifications for maximum memory expansion are outdated and may differ from our information. Why? Because technology progresses rapidly, or the revisions from memory manufacturers change so quickly that they can hardly keep up with certification, or older models are no longer validated. This is where Memorysolution steps in with extensive testing to ensure continuous availability of upgrades, well beyond the manufacturers' production cycles. Our qualified memory module for QNAP Systems 563 operates flawlessly even under full load and fully complies with the manufacturer's specifications. Faster, better through.