Description
Add space, consolidate files to a single location, or free up space on your system’s internal drive with the 18TB Expansion Desktop USB 3.0 External Hard Drive from Seagate, which is preformatted exFAT, meaning it is compatible with Windows and Mac right out of the box. This hard drive provides a storage capacity of up to 18TB and connects to your host system using its micro-USB 3.0 interface. Copy and saving data is easy – simply drag and drop. Included is an 18″ USB 3.0 cable, an 18W power adapter, Seagate’s Rescue Data Recovery Services, and Toolkit backup software.
Please note that reformatting may be required for use with Apple’s Time Machine. Also, Rescue Data Recovery Services is not available in all countries.
Additional information
| Weight | 2.9 lbs |
|---|---|
| Dimensions | 15.5 × 9.3 × 8.6 in |
| Storage Capacity | 18 TB |
| Connection Interface | 1 x USB 3.2 / USB 3.1 Gen 1 (USB Micro-B) |
| Pre-Format | exFAT |
| Internal Interface | SATA (Unspecified) |
| Type | Hard Disk Drive |
| Power Source | Included AC Adapter |
| Cooling System | Passive |
| Dimensions (L x W x H) | 7.0 x 1.6 x 4.9" / 177.8 x 40.6 x 124.5 mm |
Reviews (451)
451 reviews for Seagate 18TB Expansion Desktop USB 3.0 External Hard Drive
Only logged in customers who have purchased this product may leave a review.
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Nyah Dicki
Verified Purchase
I had been looking for at least 16 TB to house all my videos and I finally found the right one. Great price and easy to set up.
Keon Medhurst
Verified Purchase
Picked up this drive on sale to store media for a Plex server. It performs great, doesn’t get too warm, and has decent read/write speeds.
Edmond Ratke
Verified Purchase
Works great so far. It does however: (1) report a different set of SMART indicators that my OEM Exos X14 drives, (2) comes with just 1-year warranty in North America as opposed to 5-year OEM Exos coverage and you would need to put it back together as the drive’s own S/N is not valid in the Seagate warranty tool, so you need the enclosure S/N (remember to write down each matching pair!!), (3) requires picks and patience to crack open. Enjoy!
Joseph Casper
Verified Purchase
Thanks to Seagate for not raising prices due to Chia mining. WD has gone mad by almost doubling their prices
Leo Frami
Verified Purchase
I would have given this five stars except for the fact that B&H doesn’t explain that if you have a mac, you have to reformat the drive. It’s also rather noisy every time it goes into action, which makes it impossible when recording or videoing to use it. Very pricey item to discover this after spending 24 hours moving all my files from various other drives onto it.
Laurine Conroy
Verified Purchase
Exactly what I needed for backup purposes.
Carmela Bartoletti
Verified Purchase
No mention of speed in the specs, should have looked into it more, maxing out at 20-30 MB/s, otherwise its okay. But that’s REALLY slow for a USB 3.0 drive 🙁 They should have mentioned this in the specs. I’ll likely keep it but I wouldn’t recommend it.
Geo Boyer
Verified Purchase
First Seagate was an internal add-on to my Mac G5. It lived as long as the computer (years) with no issues. Second was a 3TB external, now several years old, used with my previous iMac–the 3TB still works fine. This drive was bought for use with the new 2019 iMac–I wanted more space for large photo and video files. Reformatting for Mac is effortless and takes only a few minutes with Disk Utility. One thing I like about the Seagates is that they make little noise when working. Some drives sound like they are shredding your data–not these.
Nash Beier
Verified Purchase
I have Windows XP and I purchased a PCI card with USB 3.0 ports on it to interface with the Seagate drives. Unfortunately, In the small print on a PDF I got from the Seagate web site, not in the published sales information, was the requirement that it required Windows 7 or later OS. My USB ports connected to the drives but the OS did not recognize them. I then purchased a used desktop computer with Windows 7 installed and 4 USB 3.0 ports. I then started to transfer files from my older 3 TB hard drives to one of the new 8 TB drives. I wasn’t disappointed with relatively slow transfer rates thinking that it was the USB 2 rating of the old 3 TB drives. However, I then started transferring files from one of the new 8TB drives to the other 8TB drive and the best data rate I got, with them both plugged into USB 3 ports was about 26 Mega-Bytes per second. It took over a day to transfer the 2.9 TB of data between the two new 8 TB drives. I’m not sure what the problem was but it was painfully slow. Back to the review: B&H did nothing wrong and the drives were delivered quickly in good shape and I want to be sure that the reader does not equate my issues to dissatisfaction with B&H. However, I am les than satisfied with the performance of the Seagate 8TB hard drives. I’ve been a fan of Seagate and these were the 6th and 7th USB external Seagate drives I’ve purchased for data storage on my computer(s).
Jalon Brown
Verified Purchase
Couldn’t be more simple on Win10–plug and play and get enormous boost in capacity.
Arvel Schimmel
Verified Purchase
Bought a couple of these on backorder as they were on sale from B&H and I wanted to lock in the price. The drives themselves have been working great for a couple weeks now. I shucked them so I could use the HDD’s inside my Unraid server. Inside the externals are Seagate Ironwolf Pro NAS drives. AFAIK, these are only below the Seagate Exos Enterprise HDD’s in Seagate’s model hierarchy. Only real complaint is that I backordered these in April 2021 and it took literally 6mo to receive them from B&H (just received October 2021) as they were waiting on them from Seagate. So these are great if in stock at a good price, but if on backorder I’d look elsewhere.
Jeromy Hills
Verified Purchase
Good HDD, no issues with delivery or performance so far
Talon Farrell
Verified Purchase
Lots of storage at a good price
Lucas Kutch
Verified Purchase
I use this hard drive to backup my images and it works great with Apple Time Machine
Taurean Shanahan
Verified Purchase
Problems since moment one. Too but too slow, i dont recommend it for mac for sure. I used to use seagate but with this experience i’m going to lacie for ever.
Rodrick Ziemann
Verified Purchase
Good hard drive
Godfrey Tromp
Verified Purchase
Great unit. Easy set up. I needed redundancy for my photo storage.
Cory Abbott
Verified Purchase
I purchased several of these drives for for image backups. The USB 3 speed is significantly faster than USB 2 and DVD writing, and the single drive is infinitely more convenient than having to use multiple DVDs.
Zoie Lynch
Verified Purchase
Just bought it, as it was on sale recently. So far, it does what it’s supposed to do, and stays pretty quiet. I can hear a slight whoosh once in a while, enough to know it’s there, but the sound isn’t loud or noisy, more like a very quiet, small fan. Reliability is TBD, that will take 6-12 months. Hooking it up and installing was a breeze, no issues there. I just leave it on, it’s also on my desktop all the time, so when I need it, I just transfer files there. So far, it’s only been RAW, TIFF and some JPG files, so lots more room left!
Zechariah Hayes
Verified Purchase
Ive had this expansion drive for about a month now, and very happy with it. It works as intended which is all you could want from a hard drive. It is decently quiet, I can hardly hear hear it over the soft hum of my desktop. Speeds around 100 mb/s. Nothing negative to say. So far so good.