How much RAM can I add to the QNAP TS-262, and how is it configured?

The [QNAP TS](https://www.amazon.com/s?k=QNAP+TS&tag=wehavethat-20)-262 has 4GB of RAM soldered to the board, plus one free DDR4 SO-DIMM slot that lets you upgrade total RAM to 16GB. It’s an unusual hybrid approach — half your memory is locked in place, but the upgrade slot gives you meaningful headroom for heavier NAS workloads.