BUFFALO TeraStation 3420RN 4-Bay SMB 64TB (4x16TB) Rackmount NAS w/Hard Drives Included Network Attached Storage

Purchased this a few months ago, I haven't put it to work yet (for reasons that I'll explain below) so I may adjust this rating (I assume reviews are editable) as I gain experience with it. Initial setup was easy. It works fine on an isolated LAN and does not require Internet access to function; though Internet access is required to download firmware updates and to register it, of course. I haven't seen a way to get any kind of console access to it yet so it feels like a 'black box' which I don't like. But you can pull system logs from it and it provides some config options for remote logging (which I haven't set up yet). After it had arrived and I got it set up, I had let it run for a while (it ended up being 2-3 weeks) without using it because I had other things to attend to. However, when I finally got around to starting to use it, it started throwing errors that appeared to be drive access errors. I was dismayed because this was still a basically new, fresh out of the box, unit. I contacted their customer support team and received a response in less than a day's turn-around. They told me how to download the system logs and provided a support site where you can submit them for review. A day later, Buffalo support confirmed the drive failure. After verifying my purchase date, they set me up with an RMA case to replace the faulty drive. I shipped the failed drive to their facility and received a new one in exchange (note: it seems they shipped the replacement with overnight priority, at their expense, though I did not request that - I very much appreciated that). Installed the new one and it seems ok. This is why I haven't really used it much yet, intend to gradually move data on to it to build up trust in the hardware before I start loading it up. Since I hadn't stored anything onto it yet when the drive failed, I don't know how well data recovery works in that case (I'm using a RAID config that should be able to survive up to 2 simultaneous drive failures without loss). So in short: Admin UI feels a little clunky but is usable. It seems to provide pretty flexible configuration. Was very easy to set up overall. Support response time (while under warranty) was fast and communication was easy. Just a little dismayed that it only ran for a few weeks out of the box while mostly idle during that time (not being used to store anything) before a physical drive failed. But maybe that was just a fluke and doesn't speak to the reliability of the rest of the hardware.. maybe that drive got damaged from stresses during shipping. EDIT [7/14/2022] - Just updating to add that I have been actively using the unit for a little over 6 months now since that initial drive replacement and have had no failures or other problems. It has gone through several automatic firmware updates which all went smoothly.

The unit died after just over a year of use. At least I restored once using it, so not a complete waste of money.

The device sets up fine, but if you try to use the NovaStor backup to create an Image backup under Windows 10, good luck. The network speed runs under 10Kbps on a 1Gpbs network and ultimately fails. Despite the matketing hot buttons, I have serious doubts about the actual long term value of this unit and mostly the software associated with it. They also sell 16Tb but actually recommend running it at 7Tb. It took 3 hours to get everything set up. I regret the whole purchase and the waste of time.