QNAP makes a good NAS. I can't speak to all their devices but my experiences have been great. I have owned 3 variants previously. I chose this one because it had a 10GBe NIC which works in concert with my other equipment. I wanted to implement 1GB Cache Acceleration but discovered I needed 8GB of RAM to add that size. It's in the fine print so I missed that. I picked up an aftermarket 8GB chip and a QNAP tray which allows stacking of 2 500GB SSD's. I set the trays settings to RAID0 (1GB), worked through some complications and got it all to work. QNAP is a bit pricey but it delivers in the long run.

Let me say there was a small hiccup with my first purchase of this NAS - It was a dud - the Bios either wasn't programmed or was so corrupted that the NAS would not appear on network when directly attached to either 2.5Gbe port. It would not respond thus unable to initialize using QNAP's Qfinder Pro. ItServiceman.com came out and spent two hours trying to get this online!
Qfinder located the replacement immediately and following some installation video advice and reading everything carefully I got this up and running on my own. No need for ItServiceman this time!
I did easily install two 1TB M.2 NVMEs in RAID-1 and four 10TB HDDs in RAID-5. The NVME slots have a neat little lever locking system so no tiny screws to mess with. The RAM upgrade to 32GB was also simple and the system recognized both as if they were OEM. 32gig is overkill by the way 16Gig will easily do everything you need according to ItServiceman. But I had already bought the 32G.
I am very happy with the working unit it did take about a half a day to fully synchronize the RAID-5 configuration with four 10TB HDDs leaving 27.26TB of usable storage space after default setup and installing HBS-3 Hybrid Backup. I personally had some difficulty setting up the Snapshots as I didn't leave them enough room - so the recommended amount of dedicated space is 15- 20%.
I was able to create two thin volumes dedicated for Apple Time Machine with the help of QNAPs help links. They are working so it shows that if you read the documentation and I got some Video advice from QNAP-UK videos even an end user can set this up. Sorry ItServiceman I'm saving some money here.
Overall Recommended, obviously there could be a quirky unit floating about out there but with Amazon Returns (Yes-Prime Membership) and some patience I now have a great NAS!

We use this unit as a data and multimedia server and it works great. Never had any hiccups with it, and so glad that I bought the 2G version - since I just installed am $11 8GB stick and saved the $90 for the 8GB version. Running 4x 24TB WD drives in Raid 5 - actually had a drive fail - it was replaced on warranty - dropped it in and it was like it never missed a beat. Great unit and I picked this one out after hours and hours of research.
Other things of note - my unit is pretty quiet. It sits in a louvered door closet right next to the big TV and you can barely hear it in there. I love that I can watch my movies and upload/save to this from anywhere I have a data connection in the world. I don't see us outgrowing this unit for many years to come.

estos nas los estoy comprando hace años, jamas me ha fallado uno

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