Western DigitalWD Red Plus 8TB NAS 3.5 Inch Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache

I'm writing this review because I couldn't find out if the WD20EFZX could be used in my Synology NAS as a replacement for the EFRX series drives. I couldn't get an answer on the Internet other than 'it should' or 'might' work, so I'm going to answer that question for you. And btw, the WD website doesn't make it any easier with the many different models of the RED series from the original RED to the PLUS to the PRO.The Amazon page I ordered from didn't specify if it was a WD20EFRX so I can't really hold that against them, although that was what I was hoping for. But I was unable to find a new one when I was searching, other than overpriced ones, (now this week they're everywhere). The spec's listed on the Amazon page were exactly the same as the 2 TB EFRX that I already had installed a few years back, so I thought it should be an EFRX model since the EFRX has a different cache size.However, what came in was the model WD20EFZX (which has the 128mb cache instead of 64mb so the Amazon page is wrong by listing 64mb). The outside of the box is just a generic WD RED PLUS 2TB with no other specs listed, as shown on the Amazon page. The only information is on the label that;s on the HD itself. My concern was that the EFZX isn't listed in the Synology compatibility list of HDD's for my model Synology NAS (DS413j). But, I decided to take the chance and install it as a test rather than just returning it. The specs are very similar and it's at least CMR and not SMR so no incompatible issues in that respect.No problems with installation and did the "repair" on the Storage Pool. The NAS did throw a warning that the HDD wasn't in their compatibility list during the repair wizard but gave me the option to continue. Temperatures during the repair process ran at the same temps as the other 3 drives. So, at least for now, the drive seems compatible with the NAS despite not being on the list. At this point, only time will tell.

Mit dieser Platte braucht man sich lange keine Sorgen über die Daten zu machen. Die Platten halten sehr lange und sind schnell in der Nutzung

I have of these 24 drives in a NAS that has been running for 15-9 years, and have to say they have been very reliable to date. In that time, I've only needed to replace a small number of drives, well below what I was expecting (I still have a number of 15 year old drives), despite having them in a location that in the summer should ideally be much cooler. They are reliable, perform well and have survived the test of time.For now, I only use this specific model given my experience. There may be other makes and models that work just as well, however I have been happy with the Red Pros to date, especially for a small office NAS solution. I just wish that after all this time, their prices would have reduced more significantly ;-).

Degelijk product

E' riconosciuto esser il miglior disco per NAS, dal momento che unisce prestazioni buone (chiaramente non come un disco interno con maggiori velocità di rotazione) a ottima affidabilità (fondamentale per utilizzi 24x7x365) a un'altrettanto ottima silenziosità. Personalmente ne ho due installati in un NAS e non li sento minimamente lavorare, nemmeno durante le operazioni di copia.Un must have!