QNAP TR-004 4 Bay Desktop NAS Expansion - Optional Use as a Direct-Attached Storage Device

I bought this to replace a 15 year old TS-469L NAS that was having some transfer speed issues which I couldn't figure out. I realised I only ever connected to it from one computer so it made more sense to have it as a DAS for that computer so that I didn't have to mess around with endless Samba nonsense. Got it up and running quickly. Transferring from the computer's NVMe SSD to a WD60EFRX holds a constant 200MB/s on large file copies. Far far better than the TS-469L, which transferred at about 100MB/s internally, and seems more reliable. My only complaint is the locking mechanism absolutely sucks. It doesn't line up very well and has a tendency to spin round and round if you don't get it at the right angle. It's also only held in place with a push-fit circlip which is prone to popping off. Not too big of a deal for me as I don't use them. Note also that early versions of the TR-004 had a different JMS chipset to this one so older reviews may not reflect the current product.

It was time for me to upgrade as I'd filled by previous one of these. They work so well I just bought another five years later. Highly, highly recommended.

This is sold as an expansion caddy for a QNAP NAS – but I'm using it as directly attached storage for my home server. It functions perfectly well as an external caddy, and provides a little more functionality than a standard 4-bay external caddy, at a price that's competitive with other reputable brands. The Interface is USB-C, so it's pretty straightforward to connect to a PC or Mac. There are dip-switches on the back that allows the user to select between RAID 0, RAID 1 and RAID 10 – or leave the caddy in JBOD mode, so your computer recognises individual disks inside. I was a little wary of this – assuming one false move with the dip-switches would wipe everything – but after moving the switches, you still have to press and hold a button before anything useful/calamitous can happen. The buttons and switches are nice and sturdy, so there's no danger of doing anything accidentally. There's a big 120mm fan on this, which means it turns a little slower and runs a little quieter than on units with an 80mm equivalent. It's doing a good job of keeping everything cool. Running with minimal load, the 4x12TB WD CMR drives I have inside are running at 35°C for slots one and four, and 37°C for two and three. Setup as RAID 0, when copying 32TB of data to the drive, temperatures peaked at 55°C (S.M.A.R.T status) is viewable through the QNAP external RAID Manager software that comes with the device. I've had not particular problems with that. It did have a crazy day of going off-line in 12-second bursts four or five times. Can't figure out what caused that, may have been nothing to do with the unit – but it's been up now for two months and, that day apart, has ran like a sewing machine. Speed-wise, it doesn't seem to be particularly quicker than using a software RAID system like SoftRAID. My files copied at around 7GB per minute, which is what I'd expect from a JBOD caddy – but the Mac Mini to which this is attached seems much more spritely with this Hardware RAID attached than it did running a software RAID. So, overall, I'm very happy with the purchase.

I bought this to extend an existing QNAP NAS and I wish I'd never bothered. It's possible to get it to interact with the NAS after endless tinkering but as soon as you restart the NAS, it's almost impossible to get this to reconnect. Eventually after rebooting both devices in different orders, one might be lucky enough for the RAID to reconnect, but it takes far, far longer than it should. Additionally, you can't extent the device once you install it. I bought this with 2 drives, planning to add 2 more later. Doesn't work. This is the single worst tech device I've ever bought.

I bought this to expand my QNAP 4 bay NAS. It was easy to set up and I have 36 TB of HDD in there and runs perfectly alongside my 451+

Intended to use as a DAS with my Mac, so that I can keep the set of hard disk take out from a Drobo which is no longer in the market and not waste it. Aferall, case only DAS array is of very limited choice. Mostly are Mainland Chinese brand while QNAP is a relatively famous Taiwan brand. Got it and happily used for 3 days. (I just casually connect it to a TB4 port in my Mac Studio M2 and/or a USB C or TB3 port in a Lacie External RAID connected to my Studio. Suddenly it beep and said one of my HDD is fail. I take it out and insert with other disk. connected to an old 2017 iMac with its build in TB3 port, I still can build the RAID group. But it lost connection after that. The USB lamp in the unit do not lite up and both computer cannot regonize it. Contacted QNAP, sent to RMA and sent back. Same issue. Then support said the Unit is okay, and claim it can only using USB 3.1 Gen 1 ports on the devices. And not a thunderbolt port. While I am sure it once works with the TB4 port in my Mac Studio and the TB3 port in my iMac (and I only connect the QNAP to this computer with the build in port) I can never get it mounted again. Support always ask me the same question and did I try without HDD. Absolutely despair. after all these the return window was close but lucky amazon still allow me to return. I notice I am not alone, there is one more 1 star review with similar issue.

الجهاز لا يعمل وتم استرجاعه بسبب خطأ مصنعي

Hade några hårddiskar över efter tidigare slaktade datorer. Bestämde mig för denna Qnap som ligger 1:a på prisjakt. Snabb leverans från Amazon. Installationen gick smärtfritt och hyggligt snabbt bortsett från att de tomma hårddisk kassetterna inte gick att få loss. Försökte låsa upp dem men det gick inte. Fick använda lite våld. Till följd att ett par av låsen demolerades. Fabriksinställningen var tydligen låst från början. Lite obegripligt. Om QNAP läser det här så får ni gärna skicka ett par kassetter till mig så kan jag byta. Förmodar att Amazon kan ge adressen. Bortsett från inledande strul så fungerar allt som tänkt. Installationen kördes först via datorn och raid 5 som inställning för att sedan kopplas mot min NAS-enhet (Synology). Använder den som backup.

Gostei muito do produto, excelente, transferência normal para uma case 3.0. Vantagem para fazer cópias de segurança a capacidade de aumentar o espaço de armazenamento.

便利です。QNAPのNASに接続すれば、いろいろな機能が使えます。Smartの数値も読めるし、RAID5も構築できます。ただ高いですので、できるだけ安く手に入れることをお勧めします。私は2台持っていますが、1台はアメリカのアマゾンで買い、半値でした（2年前）。検討を祈ります。

Very good product, easy to instsall with quiet operation