Customers are pleased with the storage capacity and overall performance of the Expansion 20TB External Hard Drive. Many are happy with the drive performance and compatibility, as well as the size. Some customers have noted concerns about the noise level, speed, and connectivity.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 3 Showing 41-60 of 229 reviews
Pros mentioned:
Storage capacity
Rated 5 out of 5 stars
Solid storage expansion option
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought a year ago to help with videos storage need. Still going strong. Strong price value when compared with Western Digital. Time will tell if this harddrive will last, but so far so good.
Posted . Owned for less than 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
So far so good. They are Seagate BarraCuda ST20000DM001 drives. I've got 2 set up with ZFS mirroring in a sort of RAID setup with a Jetson Nano as a interim NAS with Samba sharing. Seems fine until I upgrade my raspberry pi from a 2 B to something newer (32bit OS cannot do RAID on such large drives)
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a typical large hard drive. I have found this one to be a little quieter than my last one. Being able to back up 20 TB of data at this price without going to a RAID system is very nice
I would recommend this to a friend
Pros mentioned:
Storage capacity
Rated 5 out of 5 stars
Easy to Use Portable Hard Drive
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This is exactly what I needed. More than enough space for what I needed. I have about 5 portable drives and I wanted something bigger to put everthing on and this worked and I still have tons of storage left.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It's good bang for your buck when your chasing bulk storage. However I have had one fail with less than 6 months of on time. Always follow the 3 - 2 - 1 for backing up days and you'll be ok. Note these only have a 1 year mfg warranty.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Drive inside mine was a Barracuda, but its not a classic Barracuda drive from their traditinal consumer line, probably is a binned down Exos HAMR that they are whitelabeling as Barracuda now. Performance is around 250/mb which is in line with the my other drives in my unraid server. Basically impossible to shuck without breaking clips on HDD enclosure. 100% would recommend
This reviewer received promo considerations or sweepstakes entry for writing a review.
I've had issues with Seagate drives failing in the past, but it seems like most of the prevailing issues have been fixed in 2025. As a video editor I use this 20TB drive mostly as a backup to hold video files so the number 1 thing I look for is reliability and longevity. Both have been great (so far).
This reviewer received promo considerations or sweepstakes entry for writing a review.
I purchased this HDD over an SSD due tot he sheer amount of space it has. While I was a bit fearful of an actual disc drive vs a solid state, I’ve been pleasantly impressed by its performance and read/write speed. The gentleman at the BestBuy location in Greenville was very knowledgeable and helpful in aiding me in getting the right storage device and storage type I needed for my complex video editing files. Doesn’t hurt that I was also able to use my BestBuy credit card to earn rewards from this purchase as well. All in all a very good experience and a great product.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Nice drive for the space and money when was on sale. Still today people do not understand HDD sizing and should read up before buying something. Same as others reported all 3 I bought are Barracudas. other specs 7200rpm, 512mg cache (misc drive utilities show cmr and not smr). They are in my nas now and only time will tell how long they will last compared to any other drive.
This reviewer received promo considerations or sweepstakes entry for writing a review.
should be obvious, by 2025, that the stated storage amount isn't what is 'usable' and will vary depending on internal specs.etc. dunno why i keep seeing ppl review and not understand this....
mine runs fine... transferred 10TB~ of files over without any issues. the plastic shell is a bit cheap feeling compared to the WD easystore/element externals. really wish these companies would stop using that usb connector.... they probably over supplied and refuse to use anything else. overall... $230 isn't great(at all), but it is what it is.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The drive worked fine right out of the box. I did need to reformat it to NTFS as it came formatted in exFAT. That's a very simple step. It's only been running for a week, so I will update if there are any performance issues.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Works fine. Barracuda drive model : ST20000DM001-3Y3103.
Ignore all the other less informed reviews saying it's only 18TB. It's a full 20,000,586,850,304 bytes viz. about 20TB (1 Tera bytes = 10^12) or about 18TiB (Tebi Bytes = 2^40) as listed on the box. Not less, but in fact about 586 MB more.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I am happy with the drive so far, it is quiet but because the write speed is consistently comes in at 70 to 80 mbps with large files i am giving it 4 stars. Will wait to see about longevity.
This reviewer received promo considerations or sweepstakes entry for writing a review.
As there is no power button on this hard drive, it sleeps until activated. Each time it needs to spin back up again, it freezes the file explorer in Win 11. I love the mass space, but not sure this is a keeper for what I need it for, as it will probably just slow things down too much. Great price though.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Nice plug and play external hard drive with high 20TB capacity. Great for storing video backups that i save for clients of my wedding videography business.