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The product is multiple voltage compatible, that voltage arrange is 100-240V
Review:
4.4 out of 5
88.89% of customers are satisfied
5.0 out of 5 stars Great affordable RAID enclosure!
(function(){ P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function'){ A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })() Bottom line: I recommend the TR-004 with drives I mention below (or others on its list of supported drives) in one of the 3 modes: Individual, RAID 1/0, or RAID 5. Please keep in mind that RAID is not a substitute for a good backup. You should always keep a backup copy of anything important on a separate device! If you want to know more details, read on.As an IT professional, I appreciate the benefits of using RAID. It provides faster performance than any one of the drives in the array. How much so depends on the type of array you configure. Configured properly (more on that later*), it provides safety against data loss when a drive fails, and that's always a matter of when, not if. My only complaint with the TR-004 is that the trays that the drives go in are a little flimsy.The down side of RAID is often cost - it's not terribly cheap. Building a home network storage server using it can be expensive because motherboards that support it cost more that those that don't. Using a dedicated controller card is often even more so. I could never convince my better half to let me build a file server with enough storage to meet our needs using RAID because of this - until I found the QNAP TR-004.The TR-004 is a great price when you consider that it has the RAID controller built in. It's an even better value because it supports many of the various popular levels of RAID (more on that later*). Add the fact that you don't have to fill every drive slot to use it, and it's a high value for the money. I put it on a tiny PC also available here on Bolo.com for under $200, and **boom** - instant dedicated file server for home!You need to populate the TR-004 with drives, it comes without any. Get good NAS or other server grade drives. I recommend WD RED, WD PURPLE, or WD GOLD from Western Digital, or Seagate's IronWolf or SkyHawk lines. These drives are specifically designed for use in RAID arrays for Network-Attached Storage, also called NAS (WD RED & IronWolf), security camera systems (WD PURPLE & SkyHawk) or other servers (WD GOLD & IronWolf). They are made for very high reliability. At the very least, use either the Western Digital WD BLACK or high-end Seagate Barracuda drives. Anything cheaper, and you'll end up having problems with your RAID array loosing sync."What's that mean?" you ask? In simple terms, all the drives in a RAID array look, to the computer, like a single giant drive. Data gets spread across the drives in chunks. This is how you get the speed performance increase from RAID. While one drive is busy handling one thing, others are frequently able to handle other things. It's also how you get protection against data loss if a drive fails, when you are using a level of RAID that provides this.* Here's the "more on that later" I promised above. RAID comes in different "levels", referred to as RAID x, where x is a number. All RAID arrays are made up of multiple drives. The TR-004 supports 6 different modes, though I only recommend 4 of them. These modes are:Individual - Every drive in the TR-004 is visible to the computer as a separate drive letter (ie: e:, f:, etc). The drives can all be different models, brands, and sizes. I can recommend this mode, but know that data on each drive will be lost if that drive fails and the data on it isn't backed up elsewhere. If you are going to use this mode, you can use any drive the TR-004 will support, not just the ones I mentioned above.JOBD - This stands for Just One Big Drive. All the space of all the drives is available to the computer as one giant drive. It requires at least 2 drives, but supports as many as the controller can handle, 4 in the case of this enclosure. This mode allows the use of different, models, brands, and even sizes of drives. It works by spreading the data within files across all the drives in the array (as do all the RAID levels in one way or another). DANGER: If any drive fails, all data on all drives in this mode is lost, unless it's backed up elsewhere. I do not recommend this mode.RAID 0 - This is technically the first RAID mode. It's the same as JOBD, with the notable exception that all the drives in the array should be identical, the same exact model number, the same brand, the same size. The only difference their should be is the drives' serial numbers. This requirement is continued to all the rest of the RAID levels. RAID 0 is fast, however it has the same danger as JOBD, so I do not recommend this mode, either.RAID 1/0 - This mode is also know as RAID 10. It requires an even number of identical drives, and a minimum of 4 (all bays filled in the TR-004). It copies 2 RAID 0 arrays between each other. In larger arrays, an even number of identical drives is required for RAID 1/0. This is the fastest of the RAID levels, but it has the drawback of only making half the total space of all the drives combined to the computer (ie: 4 drives of 3 TB each would look like 6 TB to the computer [4 drives * 3 TB = 12 TB, 12 TB / 2 = 6 TB]). Although I do not recommend RAID 0, the fact that there are 2 identical copies of a RAID 0 array, any single drive can fail without loosing data. Therefore, I do recommend RAID 1/0 for speed and data redundancy.RAID 5 - This mode is a good compromise between between the speed of RAID 1/0 and the desire to get more storage space from the drives in the array. RAID 5 also requires at identical drives. It needs a minimum of 3, but can go up from there to however many drives the controller can support, in single drive increments. It achieves redundancy, by spreading data across "stripes" that are duplicated on the multiple drives. At it's absolute simplest, it places 2 copies of each stripe in the array. For example, lets say there are 3 stripes stored in a 3-drive array. We'll call the stripes A, B, & C. We'll call the drives 1, 2, & 3. RAID 5 stores a copy of A on 1 & 2, a copy of B on 2 & 3, and a copy of C on 3 & 1. By doing this, any 1 drive can fail but there is still at least 1 usable copy of all stripes in the array. Replace the failed drive, and the controller will copy the necessary stripes to the new drive. The amount of storage available to the computer is the combined total of the storage on all but one of drives in the array (ie 4 drives of 3 TB each would look like 9 TB to the computer [4 drives -1 = 3 drives, 3 drives * 3 TB = 9 TB]). RAID 5 is not as fast as RAID1/0, but it gives more storage from the same drives, so I do recommend it in particular for home servers, where cost is a bigger consideration that many businesses.SFOTWARE CONTROL: When the TR-004 is in this mode, special software must be downloaded and installed on the computer it is attached to. The mode it will run in will then be controlled by the user from within this software. I do not recommend this mode because if you are going to move the TR-004 from one computer to another, you may accidentally loose everything stored on it. You never know when you may have to move it to another computer - say if the one it's on dies?
5.0 out of 5 stars Plug in and play expansion for my NASBook!
Easy setup and consistent performance. I packed in 4 x 24TB Ironwolf Pro Drives from Seagate and get consistent speed in RAID 5. This went on sale for Black Friday and was a great value. Not very loud either.
4.0 out of 5 stars The devil is in the details..
Nice, but, you could have done a lot better, QNAP..For example..USB 3.2 Gen 1 is a 5Gbps bus....meaning, it's capable of a theoretical upper limit of about 625MB/sec. You'll obviously never achieve this, given real-world performance and overhead, but, for a fully loaded 4-bay system with 6Gb/sec drives, I expected better than 250MB/sec on reads. Way better.While the TR-004 seemed intelligent and resilient enough, I was disappointed to learn that the array is incapable of rolling upgrades on capacity.. meaning, over time, you cant replace old drives with higher capacity ones, and eventually benefit from that higher capacity once the particulars of the RAID level you've selected allow for it, ala how Drobo used to do it... If you gradually phase in higher capacity drives into the set, it'll still retain the geometry of the original RAID group. Sad trumpet.Worse, the QNAP TR-004, internally, only talks to its drives at the default old-school 3Gbps SATA speeds, not SATA-II (6Gbps) speeds. Not real impressed there either.Additionally, the on-board hardware RAID controller in this box does not appear to have any read cache whatsoever. With how cheap RAM is these days, this was a stupid move, and further takes the performance peg down a few notches compared to what it really could be, if done right.The lack of a simple 16x2 LCD screen showing array and drive state is also disappointing. I like knowing what's going on with my storage, independent of what host is talking to it, and such displays have been common on desktop RAID enclosures for 20 years now. This would have only cost a few dollars to add per unit.The status lights for the drives also seem sunken into the front panel a little too far.. as a result, seeing drive status is difficult form any viewing angle other that directly in front of the box. Big miss.On the upside, the unit itself is surprisingly quiet, and the fan is infrequently, if ever, in use. It will also go into a sleep mode where possible.Despite the above shortcomings, it's still a reasonably good, cost-effective array, and will probably make the vast majority of its owners happy.. but, for those of us who understand math, however.. it's a little bit of a disappointment.
5.0 out of 5 stars Download the Manual and Read BEFORE you purchase
I finally got this going. I wish I had downloaded the manual before I purchased it. It will not support larger than 6 TB drives. I purchased 4 8 TB drives and then had to turn around and buy some 6TB drives. I will use the 8 for something else.It was not easy to set up and I could never get the software downloaded from the manufactures website to work, it just sat there and did nothing. There are switches on the back that makes it easy to configure it. I set mine for Raid 5. It works GREAT once set up. I have it one my mini computer in my workshop and have it shared so I can use it from any computer on my home network.I purchased it mostly for copies of backups (work computers and mine person ones). I like to use Rescue Zilla and do images of all the computers I take care of that way it takes everything including the operating system.I have backed up my NAS to it and put all the disk images I have of the other computers.For what it cost its great. I wish they had included a manual with it not just a mini manual and a place to download the entire manual but I understand, they have it in a few languages.I did have to go into Windows 11 and adjust the power saving controls because it kept going into sleep and then would make the computer just sit for like a min when I tried to access it. I set it for 1 hour before it goes to sleep.
Nice DAS
(function(){ P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function'){ A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })() Nice DAS, works well with windows server 2022.The included fan had a mild hum so it replaced it with a Noctua.
Bello ma... baie porta dischi in PLASTICA? Perché in plastica?
The media could not be loaded. Il prodotto sembra pratico. Il fatto che abbia la gestione hardware non solo software lo rende un buon DAS con diverse configurazioni possibili. Abbastanza silenzioso, ventola molto efficace.Alimentatore esterno. Da un lato è meglio perché in caso di problemi all'alimentatore lo cambi ma il box resta, da un lato hai più cavi e disordine.- Positivo: il box è ben realizzato e con la ventola enorme è una galleria del vento per i dischi. Anche se...Leggero e pratico, porta USB C.Raid configurabile senza software. Metti i dischi, anche a caldo, premi il pulsante reset e sei pronto.Negativo: baie porta dischi in plastica. Plastica scadente e fragile. Persino le chiavi degli slot sono in plastica.I dischi scaldano, la plastica alla lunga si cuoce. La plastica non è un conduttore di calore ma un isolante. Se c'è un errore o una cosa a cui prestare attenzione emette fischi che meglio non farlo di notte o svegli il condominio.Il prodotto non è sicuramente pensato per uso professionale o per stare acceso ininterrottamente.Fa il suo dovere di DAS domestico se usato con delicatezza.Lo restituisco in favore di un pari prezzo in metallo.
Quality
Looks perfect.
التعليمات
اذا اطفأت الكمبيوتر لاينطفى تستمر الهاردات بالدوران
Excelente para tener discos duros externos
Lo compré específicamente para tener varios discos duros externos porque edito muchos videos y así ya no tengo que estar intercambiando discos duros externos. Funciona a la excelencia con Mac y el cable USB tipo C
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QNAP TR-004 4 Bay USB Type-C Direct Attached Storage (DAS) with hardware RAID (Diskless)
BHD177065
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Product origin: United States
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