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WD Blue WD20SPZX 2TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" Internal Notebook Hard Drive
  • Storage built to WD's high standards of quality and reliability.
  • Manufactured with WD's award-winning desktop and mobile hard drive technology.
  • Available in a broad range of capacities and form factors.
  • $74.99 
  • Free Shipping (restrictions apply)
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2 TB on a 2.5" drive only 7mm thick and made by Western Digital!
Drive seems fast for a 5400 RPM drive with read operations - I get read speeds nearly 200 MB/s. Small writes are also very quick, probably because of the MASSIVE cache.


For some reason the label is on the bottom of the drive and the top is just a blank white label... not sure why WD did this but it really doesn't effect the use at all, but looks weird.

Overall Review:

In all seriousness, I wish WD has made these available for sale like 2 moths earlier when I bought 5x 2TB Seagate FireCudas. The Seagate FireCuda has a slight edge on speed due to it being a SSHD, and has a much longer warranty, HOWEVER... I've had the Seagates for 2 months and have already had 2 failures. At the time WD only offered a 15mm thick PMR version (and with less cache). I'm very pleased that this drive is finally available as now I can have the vastly better reliability of WD. I can't wait until the capacity gets even better. Keep your data safe... buy WD.

Be aware that this drive uses SMR technology (Shingled Magnetic Recording) to achieve such high density in a small package. If you don't know what that is, think of how shingles on a roof are laid out partially overlapping each other - that is how the data is laid out on the drive platters. While this allows significantly higher capacities, it creates some complexity to writing. If the drive needs to write data in the middle of existing data, it can't just "place" it there like a HDD using PMR technology because other data also overlaps it. What it has to do is put the data in a temporary location, then re-write all the shingled data afterwards to the end of the track break.

What does this mean for you? No change really in the way you use it. Just be aware that writes to the drive place the data in a temporary position, which is then relocated and shingled later on. The drive is smart enough to do this when you aren't busy, but this will make the drive sound like it's doing a lot of work even when the computer is idle. So if you hear the drive churning away while you are seemingly doing nothing - this is completely normal on any drive using SMR. The constant busy sound is not a defect, but rather a side effect - and it stops when the shingling is complete.

If you use this as a main system drive, there are so many random writes with the paging files and temp files that it may never fully shingle the drive, making it sound as if it never stops working. For that reason, these are best used as storage drives that are read to often, but written to rarely. Don't even think about using an SMR drive in a RAID setup as you'll get very poor performance.

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  • Ryan M.
  • neweggVerified Owner
  • neweggOwned For: 1 month to 1 year

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