Search  for anything...

Seagate Expansion 18TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP18000402)

  • Based on 16,111 reviews
Condition: New
Checking for the best price...
$279.99 Why this price?

Buy Now, Pay Later


As low as $46.67 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 5 left in stock, order soon!
Fulfilled by TECHOME

Arrives Tuesday, Dec 2
Order within 15 hours and 38 minutes
Available payment plans shown during checkout

Style: Desktop HDD


Capacity: 18TB


Features

  • Easy-to-use desktop hard drivesimply plug in the power adapter and USB cable.Specific uses: Business, personal.Special feature : Compact. Hard disk description : Mechanical Hard Disk.
  • Fast file transfers with USB 3.1
  • Drag-and-drop file saving right out of the box
  • Automatic recognition of Windows and Mac computers for simple setup (Reformatting required for use with Time Machine)
  • Enjoy peace of mind with the included limited warranty and Rescue Data Recovery Services
  • The available storage capacity may vary.

Description

Ideal for the home, office, or dorm, Seagate Expansion desktop drive offers enormous desktop storage for photos, movies, music, and more. Backing up and transferring content is incredibly easy—just drag and drop! To get set up, connect the USB hard drive to Windows or Mac—no software required. For Apple Time Machine, simply reformat. Included is an 18-inch USB 3.0 cable and 18W power adapter.

Digital Storage Capacity: 18 TB


Hard Disk Interface: USB 3.0


Connectivity Technology: USB


Brand: Seagate


Special Feature: Data Recovery Service


Hard Disk Form Factor: 3.5 Inches


Hard Disk Description: Desktop


Compatible Devices: Desktop


Installation Type: External Hard Drive


Color: Black


Hard Drive: ‎18 TB Desktop


Brand: ‎Seagate


Series: ‎Expansion Desktop Drive


Item model number: ‎STKP18000402


Hardware Platform: ‎Mac


Item Weight: ‎3.03 pounds


Product Dimensions: ‎8.58 x 8.35 x 3.03 inches


Item Dimensions LxWxH: ‎8.58 x 8.35 x 3.03 inches


Color: ‎Black


Flash Memory Size: ‎18 TB


Hard Drive Interface: ‎USB 3.0


Hard Drive Rotational Speed: ‎5400 RPM


Manufacturer: ‎Seagate


Language: ‎English, English, English


Date First Available: ‎August 28, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great Storage for Series X/S Games
Style: Desktop HDD Capacity: 8TB
First, we should all know by now that with a few exceptions, there is no way to play Series games from any external drive, not even from an SSD for those wondering, but we CAN play games from all previous Xbox consoles from an external drive. I read so many reviews on so many drives prior to purchasing this one. Did I purchase this one because it has the best performance? No. I could’ve purchased an SSD with a much higher write/read speed but I would’ve gotten a fraction of the storage at a much higher price. I decided on this HDD because at $164, the dollar per TB is almost impossible to beat and with how I intend to use this HDD, the performance is more than adequate. So, I write this review in hopes that it’ll help someone else decide whether this drive is for them. I read so much about read/write speeds when researching HHDs and I got to thinking, the read speed for a lot of us will be more important than the write speed. Why? Because our internet’s download speeds will max out way before the HDDs write speed capability is maxed out. So here is where the read speed comes into play. If you use this drive to store all your games, including Series games, and copy rather than move the games to the internal drive, then you’re only “moving” your games in one direction, and it just so happens that copying from this HDD to the internal drive is very fast. I copied Jedi: Fallen Order, Halo Infinite and Forza Horizon 5 from the HDD to the internal and they copied at a pretty much sustained 1.5Gbps (187 MBps). At 103GB FH5 took no longer than 15 or so minutes to copy. To me, a 15 minute wait is totally worth the savings/storage you get vs an SSD or dare I say the $400 2TB expansion card!!! At this price point I think it’s hard to make an argument against this HDD. I don’t know if the read speeds will be impacted as the HDD fills up so I will update the review once I’ve had more time with it. On a side note, the drive came in a generic cardboard box which I was not expecting. Don’t know if that means anything but nonetheless that’s the way it was shipped. ... show more
Reviewed in the United States on August 31, 2022 by gt2quick gt2quick

  • High-capacity storage for backups or read-mostly data
Style: Desktop HDD Capacity: 8TB
Solid external 8 TB drive. Perfect for storing large read-mostly datasets, such as video. This drive should also function well for incremental backup. Note that this drive uses SMR technology. This means that very large writes can slow down, and the average write bandwidth will be much lower than the peak write bandwidth. Do not use this for a long-duration, random-access, write-heavy workload, such as blockchain archival. I obtained mine in January 2021 and it has just begun to show signs of failure after two years of extensive use in a home-built ML server, well exceeding the annual data transfer (read/write) rating, and including over 10000 spinning hours. This should be interpreted as a positive; it is a sign of good robustness. The nature of the failure is gradual, not catastrophic: several uncorrectable sectors have appeared. As such, we are transitioning this drive to scratch storage use. Unfortunately all hard drives fail eventually. For critical data, use a multiple backup solution such as 3-2-1, ideally with redundancy in each layer such as RAID, to minimize the probability of data loss. ... show more
Reviewed in the United States on April 12, 2023 by penlu

  • Works great on a Mac, buttttt
Style: Desktop HDD Capacity: 8TB
I have had no trouble with my 8TB drive working on my iMac. Yes, I had to reformat it and that took a little research online to figure it out. But it works great. So great that I'm purchasing the 16TB drive today because I've almost filled the 8TB up. I haven't tried to use it with Time Machine - I have a different drive for that - but I have no doubt it would work. Instead, I use it as extra space, loading all my media and documents on it. I love it. I know there are a ton of 'Doesn't work with a Mac' reviews, but I can only assume the steps it takes to reformat the drive scared them off. (Because yes, there is that slight moment of panic when you follow the directions and your computer warns you it's going to erase the entire drive.) But once the drive is reformatted, I haven't had one issue with it. I had MacOS Catalina when I bought it. I now have MacOS Big Sur. Still no issues. (Except for it getting filled up LOL - but that's my fault, not its ;) ) Update 3/8/21: For those who have BigSur on their Mac - the power distribution via BigSur is perfectly f'd up. So whereas before my update to BigSur, I could leave my external hard drives plugged in and when it started up the next morning, everything was fine, now with BigSur, I have to unplug my externals when not in use. ANNOYING - especially since my iMac retains its connection and won't let me eject them easily unless I turn it off! And this isn't Seagate's issue - this is VERY MUCH an Apple mistake they aren't fixing. What happens if I don't? The computer won't start. The loading screen will get to 25% and stall. Once it even slid off the edge of the screen. I have to then force the computer to stop. And then restart. Then it starts up (Usually). I love Seagate, but am not happy with Apple. I'm getting to the point where there aren't any computers I can trust. I won't do Windows and this will be my last Apple machine. We seriously need an OS that works, is stable, and won't steal our data. ... show more
Reviewed in the United States on February 17, 2021 by t

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...