Efficient and discreet
As usual, QNAP quality!
Bought to replace a very old QNAP (12 years old, 24/7/365), I was able to put the 4 RAID 5 disks from the old one on this one, they were recognised immediately (no RAID rebuild), all that remained was to update the system and reconfigure (ethernet, firewall etc.).
Used with 3.5 HDDs, it's quiet, relatively small in depth and quite fast.
The network (1Gb/s) doesn't allow me to test the advantage of NVMe caching for SMB.