WD 4TB My Book external hard drive, Desktop HDD with Password Protection, USB 3.0, SuperSpeed USB, software for device management, backup, hardware encryption, Black

Not loud, but does take a while to spin up. Good backup drive for a NAS.
Having read dozens of reviews of these WD MyBook Duo drives, the conclusion I had come to was that they are very loud, but otherwise ok. I found a ‘used’ one on the Amazon Warehouse at a vastly reduced price, so I was happy to give it a go for myself. I was chiefly interested in using it in RAID 1 (mirrored mode) as an expansion for my QNAP T451 NAS although I decided to also try it directly connected via USB to my Macbook.Dealing with the ‘noise’ issue first, I’m not sure if I’ve been exceptionally lucky, but other that when it first switches on (you get a brief flurry from the fan, just to prove it works) it is basically silent (other than a little bit of clicking of the HDD heads getting in the right position). There’s no audible fan noise and it seems to run pretty cool. I wasn’t worried about noise as it was going to live in a cupboard with my NAS, but I’m glad it’s very quiet in case plans change and it moves out of it’s under-stairs home. When testing via USB, it was tucked away on a bookshelf behind the sofa with a long USB3 lead and noise was not an issue.Speed is very good plugged into my Macbook. As you can see from my screenshot, in RAID 1 (mirror) mode it achieves ~100MB/s Write and ~135MB/s Read over USB 3.When plugged into my macbook, it takes a little while to be recognised, but once it is, it responds quickly and seems very solid. It comes up formatted as a single drive using the capacity of both drives with data striped across them both (RAID 0). This is a terrifying proposition (to me at least) as if one of the drives fails, you lose all the data on both. Luckily you have the opportunity to install an app (Windows or Mac, download from the WD website) that can change the formatting of the drive. You thereby have 2 alternatives:RAID 1 – only gives you half the capacity but if a drive fails, all of the data is safely on the other driveJBOD – which treats each disk like a separate drive, so if one fails, you only lose the data on that drive – data on the other is safe.The big advantage of how it comes set up is you get one nice big drive, and it works faster than either of the other 2 options. Fine for a backup as it’s unlikely both your main disk and the backup would go at the same time. Whether it’s worth the risk as a storage drive is up to you…The drives inside are WD Reds, which are designed for NAS use, and regarded as some of the more reliable drives you can buy, so you should get many many hours of use without any issues.One annoying thing on the Mac is that when you wake your Mac from sleep with the drive plugged in, the WD software will frequently alert you that there is a RAID error. There is no error, it’s a false alarm. The best way to deal with this is to simply uninstall the WD software after you’ve configured the drive to your requirements. It has very few functions, aside from changing RAID modes and giving annoying alerts! You can always reinstall should you need to change the RAID mode (which will also wipe out all of your data).

Great quality drive, looks good, fast read/write speeds and plug and play.
Purchased on 17th June 2019 for £87.49.I’ve been waiting for the right moment to add some storage to my PC so when this 6TB hard drive went on offer I went for it.I already have a 5TB Western Digital Elements external hard drive but it’s been really low on space for quite a while so it was time to get another one.The hard drive arrived well packaged with plenty of protection. It came complete with a UK power adapter and USB 3.0 cable.I love the look of this hard drive, the mixture of glossy and matte panels works really well and the rectangular design with the ridges looks very stylish. I actually prefer this design to the rounded design of my Elements hard drive.I literally plugged it in and it was good to go, it already had the latest firmware and was pre-formatted so I could see it on my PC.I ran the CrystalDiskMark v6 hard drive benchmark utility and as you can see from my pictures it scores an impressive sequential read/write score of over 190MB/s which is pretty impressive for a mechanical hard drive.The usable space on my Windows PC shows up as 5.45TB which is down to the conversion of the units and is perfectly normal and the same for all hard drives.Overall, this was a great buy at a great price and I would throughly recommend it if your looking to add some additional space to your PC.

Extern hårddisk som gör vad den ska. Man behöver inte formatera den. Det följer med programvara för både windows och mac att installera om man vill. Dessa filer ligger på hårddisken. Personligen har jag ingen nytta av dom då hårddisken fungera perfekt utan. Perfekt för backup

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