Running out of space on your computer or laptop stinks, and when it gets bogged down, it's time to look for an external hard drive to open up storage space. A 20TB external hard drive is one of the best computer accessories that you can have.

Not only will it keep your computer moving fast, but it won't have to work as hard to save new data. An external drive will provide a lot more storage space, which means you can keep even more data without sacrificing performance. A 20TB external hard drive will provide A LOT more space.

How I Choose the Best 20TB External Hard Drives

Important data can really pile up fast - photos, music, videos, documents, presentations, you name it. When it all matters enough to keep, you want to keep it safe and organized. To meet those storage needs, there are many types and sizes of external drives on the market.

When it comes to choosing an external hard drive, it is essential to consider your needs and make sure you pick the best one for your individual requirements. The biggest factor to consider when shopping for an external hard drive is capacity, measured in terms of terabytes (TB).

For most people, a 20TB drive should be plenty of space. While capacity is key, other specs are also important. Depending on what you plan to use your external hard drive for, I always look out for the speed at which it transfers data, which is typically measured in Megabytes per Second (MB/s).

Many drives will come with a USB 3.0 or 3.1 port that provides fast read and write speeds — up to 5 Gbps — so I make sure to check out those kinds of features before buying. It's also worth making sure that the external hard drive has good security features so that your data remains safe and secure. Lastly, I look out for attributes like shock resistance and cooling systems that can help the drive last longer.

Investing in a 20TB external hard drive will truly solve your storage needs. These bad boys can hold up to 200 hours of 4K video or 2 million photos! Not only will this external hard drive keep your data safe and organized, but it will also boost your laptop or computer's performance power by acting as an extra memory cache.

MUST BUY: SanDisk Professional 20TB G-DRIVE PRO

SanDisk Professional 20TB G-DRIVE PRO

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When you're looking for 20TB of space, you have a lot of important files to store. You'll want something reliable that won't take forever to read and write. Well, look no further than my MUST BUY, the SanDisk 20TB G-Drive Pro.

With Dual Thunderbolt 3 (20Gbps) ports and a single USB-C port, it's easy to connect to your Mac or PC and start working with high-speed transfers. The enterprise-class 7200RPM Ultrastar drive inside provides fast, reliable access to your data, while the daisy chaining feature allows you to connect up to 5 additional devices for even more expandability.

What You Should Know about the SanDisk 20TB G-DRIVE PRO

This is a Pro HDD-style desktop drive that provides excellent performance up to 260 MB/s for reading and writing. The added USB C port is a big plus, as are the dual Thunderbolt 3 ports. This option is the best for a home media server.

This monster passed all professional benchmark tests. There is a 5-year warranty offered as well, just in case - though you'll probably never need it with this guy! And That is Why This is My MUST BUY.

SanDisk Professional 20TB G-DRIVE PRO rear panel with ports

Here's the Deal

I love G-Drives, I have a bunch of them of all different sizes and none of them have died, EVER. I've had my G-drives for over 5 years now and no issues yet! This PRO drive comes with a USB C port and DUAL Thunderbolt 3 ports so you can transfer multiple drives to this backup at once, or daisy chain devices and watch while dancing.

GREAT BUY: LaCie 2big Dock RAID 20TB External HDD

LaCie 2big Dock RAID 20TB External HDD

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This is My GREAT BUY because the LaCIe 20 TB drive is the perfect desktop solution for creative professionals who demand massive amounts of space and don't want to miss a beat.

Nowadays, we need our devices to do more than ever before. We need them to be fast and reliable so that we can stay ahead of the competition. Enter beast mode!

With 20TB of storage, you'll be able to store all your important files and media without having to worry about running out of space. And with transfer speeds of up to 440MB/s, you'll be able to work with your files at lightning-fast speeds.

The 2big Dock comes equipped with an SD card slot and CF card slot for direct file ingestion, as well as a USB 3.0 hub for charging devices and offloading footage. And with dual Thunderbolt 3 ports, you can daisy chain multiple devices together for even more expandability.

Plus, the USB 3.1 port makes it easy to connect to any computer, and the display port lets you connect to high-res monitors for ultimate productivity. All of these features and more make it a GREAT BUY!

What You Should Know About The LaCie 2big Dock 20TB External HDD

With powerful speeds of up to 440MB/s, this drive is one of the fastest out there. This 20TB external hard drive is equipped with the IronWolf Pro enterprise-class drives for the utmost reliability and performance possible.

You can easily configure RAID 0/1 through the step-by-step wizard according to your desired optimization for either performance or redundancy. Yes, this model has included software and more. The package includes Thunderbolt 3 single cable.

This product also comes with a five-year limited warranty protection plan that includes Rescue Data Recovery Services, giving you long-term peace of mind with your purchase. 20TB of external storage space is a valuable commodity that's worth the spend.

So whether you're a video editor working on the next blockbuster film or a photographer capturing once-in-a-lifetime moments, the LaCie 2big Dock will help you get the job done quickly and easily, and that is why this is my GREAT BUY.

Here's the Deal

This comes with SD and CF card slots, dual Thunderbolt 3 ports and USB 3.1 ports, daisy chain ability, and transfer of data - do whatever you want with this (within reason). It comes in fast with 440mb/s read speeds powered by its two Ironwolf pro drives (7200-rpm speeds). Something impressive about this drive is LaCie boasts an hour of 4k footage that can be transferred in 1 minute.

CAN'T GO WRONG BUY: Seagate One Touch Hub 20TB External Hard Drive

Seagate One Touch Hub 20TB External Hard Drive

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We are changing gears with this Seagate One Touch Hub, a buy you really CAN'T GO WRONG with. It may be less expensive, but it will more than handle your desktop storing needs. With a front-facing USB C and USB 3.0 port, you can easily connect and recharge devices—even if your computer is off.

The password-protected hard drive and USB hub keep your data safe and sound, while the out-of-the-box compatibility with Windows and Mac computers makes it easy to get started.

The included Seagate Toolkit backup software provides one-click and scheduled backups, as well as file mirroring, for added peace of mind. And if you ever need it, the two-year limited warranty and Rescue Data Recovery Services have you covered. Get the most out of your digital life with the Seagate One Touch Hub 20TB External Hard Drive.

What You Should Know About The Seagate One Touch Hub 20TB External HDD

Seagate One Touch Hub 20TB External HDD backup features

We all know that backing up our digital memories is important. But let's be real, it's not always at the top of our to-do list. One Touch Hub makes it easy to check this task off your list. With password-protected storage and a front-facing USB type C and USB 3.0 port, you can quickly backup files and charge multiple devices simultaneously.

Windows and Mac compatibility, file mirroring, and a 20TB capacity ready to store your data, make this the perfect way to secure your digital life. That's why it's my CAN'T GO WRONG BUY!

Here's the Deal

What's great about this Hub is that it not only has USB C and 3.0 ports for backup ease, but you can charge your devices with it. It also comes with 4 months of Adobe Creative cloud photography plan. Most of these deals come with 1 or maybe 2 months so this is a hefty bonus.

HONORABLE MENTION BUY: WD 20TB Elements Desktop External HDD

WD 20TB Elements Desktop External HDD

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The WD 20TB Elements hard drive gets my HONORABLE MENTION. With a whopping 20TB of storage space, this hard drive can store just about anything you need it to. While the data transfer speeds aren't as fast as the higher-priced options, you won't have to wait around forever for your files to transfer.

Plus, the universal connectivity with USB 2.0 devices means you can use this hard drive with just about any computer or device out there. So whether you're looking for extra storage for your home computer or a reliable way to back up your business files, the WD 20TB Elements Desktop External Hard Drive is the perfect solution.

What You Should Know About The WD 20TB Elements Desktop External HDD

WD 20TB Elements Desktop External HDD plug and play ready

The WD 20TB Elements gets my HONORABLE MENTION because this external hard drive offers high-capacity add-on storage, and is an inexpensive option among much higher-ticket hard drives.

With a simple build and design, it is a sleek vertical black hard drive and universal connectivity with USB 3.0 and 2.0 compatibility. It comes with a 3-year warranty and includes a power adapter. When it comes to computer accessories that won't break the bank, this is a strong choice, and That Is Why This is My HONORABLE MENTION BUY!

Here's the Deal

If you're really just in the market for something with a lot of storage, this could be the right HDD for you. If you have a Windows PC, plug in and start to play otherwise you'll need a reformat for Mac. But for a lower price point and that WD brand, this deserves the honorable mention.

SPECIAL BUY: G-Technology 20TB G-RAID System

G-Technology 20TB G-RAID System

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Are you into the RAID software and want a tank of a machine? You've come to the right place, my friend. When it comes to reliable, high-performance storage, the G-Technology 20TB G-RAID is second to none, making it my SPECIAL BUY.

This dual Thunderbolt 3 and USB-C storage device has all the bells and whistles you could want, including support for daisy chaining up to 5 additional devices, dual removable hard drives, and hardware RAID 0 (for performance) or RAID 1 (for mirroring).

With a massive 20TB of storage capacity, this bad boy can handle even the most demanding data storage needs. And thanks to its rugged design, it's built to withstand even the most extreme conditions. So if you're looking for a top-of-the-line storage solution that won't let you down, look no further than the G-Technology 20TB G-RAID.

G-Technology 20TB G-RAID System on a desktop

What You Should Know About The G-Technology 20TB G-RAID

This G-Drive 20TB RAID is a haul, with two Thunderbolt 3 ports, a USB C, and an HDMI connection, allowing you to daisy chain up to 5 devices. Both drives are the iconic, enterprise-class 7200 rpm drives and this comes with a 5-year limited warranty.

Supporting multi-stream HD, 2K, 4K, and HDR video, this storage system is perfect for the modern content creator. With Thunderbolt 3, USB-C, and HDMI connectivity, this storage system is designed for ultimate flexibility and easy access to your digital library.

With hardware RAID 0 (default), 1, or JBOD, this ultra-fast, high-capacity storage system is designed for the most demanding video workflows. RAID 0 and the drive acts as a 20TB, RAID 1 and it acts as two 10TBs where one mirrors the other, thus constantly backing up your 10TB and JBOD means two separate 10TB drives.

Whether you're a professional photographer or videographer, or just someone who wants the best possible performance from their storage system, the G-RAID with Thunderbolt 3 is a SPECIAL BUY that's worth the cost.

Here's the Deal

I've never had any issues with G-Drives, EVER. You can choose between 3 different RAID options, 0, 1, or JBOD aka full capacity, half capacity, or full capacity (each drive acting alone). And if that's not enough, this baby gets up to 480 mb/s speeds. FAST!

20TB External Hard Drive - FAQs

You've just filled up your computer's internal hard drive with photos, videos, music, and documents - and now your computer or laptop is slowing down.

Now what? If you want to keep all of this data safe and accessible, and you want your device to keep up with you, you'll need an external hard drive.

Purchasing a 20TB external hard drive solves a big problem for anyone needing extra storage space. A large external hard drive can hold a lot more data than you might think and enables you to easily transfer files between your computer or laptop and the external hard drive.

Computer accessories like external drives can really cost you if you're not careful. So I've compiled the most frequently asked questions about the same to help you make the best decision for your needs.

Is there a 20TB hard drive?

Yes, there are several 20TB hard drives on the market. However, they tend to come with a hefty price tag. For example, the Seagate Enterprise Capacity 3.5 HDD ST20NM0055 retails for around $1,600.00!


So if you're looking for a large storage capacity and money is no object, then by all means go for it! But if you're on a budget, know that there are plenty of other storage options available that are smaller and more cost-efficient.

How much data can I store on a 20TB external hard drive?

It can be hard to visualize our data since it exists in digital form. It's not like we have physical papers and photos that we're storing in filing cabinets. So we have to find relatable ways to visualize just how much 20TB is - because it's a lot. So here's one way you can try to wrap your head around it.

Some PC games are quite large, and gamers often store them on external hard drives to free up their computers. Games like Call of Duty can be 250 GBs! That said, 1,000 GBs is just one TB, so you could store 80 Call of Duty-sized games.

How many platters are in a 20TB hard drive?

A 20TB hard drive contains four platters. Each spinning platter has a capacity of 5TB. So, in total, there are 20TB of data storage on a 20TB hard drive.

What is the largest external hard drive?

As technology improves, the storage capacity continues to increase. What I can say is that as of April 2022, the largest HDD you’ll find is a whopping 20 terabytes. If you have loads of games or video footage to store, then you might benefit from the largest external hard drive size there is.

The largest SSD available at this point is clocking in at 16TB. They say bigger is better - but there is some give and take here. The larger external hard drive storage may slow things down significantly, so always look closely at the reading and writing speeds if that is something that matters to you.

How large is a full-sized hard disk?

A full-size hard disk is usually 3.5 inches in diameter and can store up to 2TB of data. However, there are also smaller 2.5-inch disks that can store up to 1TB of data. So, it depends on the size of the disk you're using. But generally speaking, a full-size hard disk can hold a lot of data!

Can external hard drives be stacked on top of each other?

Yes, external hard drives can be stacked on top of each other as long as they are the same size. You can also stack different sizes of external hard drives, but it is not recommended because it can cause damage to the hard drives.

If you do stack different sizes of external hard drives, make sure that the larger drive is on the bottom and the smaller drive is on the top.

What is the difference between a hard disk and a hard drive?

A hard disk is a specific part of the hard drive that stores data on a spinning platter. A hard drive is a whole storage device that uses a spinning platter (disk) to store data. The terms "hard drive" and "hard disk" are sometimes used interchangeably, but they technically refer to different things.

When most people say "hard drive", they're referring to the entire hardware system- the casing, the disk inside, and all the electronics needed to run it. When most people say "hard disk", they're referring to the actual disk itself- the part that spins and holds your data.

How many terabytes can a hard drive hold?

I'm not sure what you're asking for specifically, but a regular hard drive can hold up to a couple of terabytes of data. If you're looking for something that can hold more, you might want to look into an external hard drive or capacity cloud storage.

How thick is a hard drive platter?

A hard drive platter is a thin, circular disk made of metal or glass on which data is stored and it's about 0.2 inches thick. The platters rotate at high speeds inside a hard drive to allow the read/write head to access the data. Hard drive platters are typically about 0.2 inches thick, but they can be as thin as 0.1 inches or as thick as 0.5 inches.

The Best 20TB External Hard Drive For You

External hard drives are becoming a necessity for many people, especially with the advancement of technology. With files getting bigger and more numerous, an external hard drive can help declutter your computer's memory.

Purchasing a 20TB external hard drive is a great idea for those who need a lot of extra storage space and don't mind the cost. So if you're in the market for a serious increase in your storage capacity, a 20TB external hard drive is worth checking out!

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