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Deal.ai › Hard Drives
Glyph
Glyph Atom Ex20 4TB Portable NVMe SSD

Glyph Atom Ex20 4TB Portable NVMe SSD

Best price now

$949.99at AmazonChecked 1 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $949.99 at Amazon (checked Nov 11, 2026).
  • Checked at 3 stores.

Our take on the Glyph Atom Ex20 4TB Portable NVMe SSD

The Glyph Atom Ex20 is a 4TB external NVMe SSD that connects over USB-C at USB 3.2 Gen 2 speeds, rated around 2,100 MB/s for both reads and writes. That puts it in the same class as Samsung's T7 Shield and SanDisk's Extreme Pro, though those top out at 2TB while the Ex20 doubles capacity in one drive. The aluminum body and Glyph's build reputation suit video editors, photographers and anyone moving large project files between machines. It is a bus-powered drive with no extra adapter needed for modern laptops, and it is larger and heavier than pocket drives like the T7.

Best forVideo editors working with 4K or RAW footagePhotographers backing up large librariesMac and USB-C laptop ownersAnyone who needs 4TB in a single portable drive
Pros
  • 4TB capacity in one bus-powered drive
  • Rated 2,100 MB/s read and write, fast enough for direct editing
  • USB-C connection works with modern Macs and PCs
  • Aluminum housing built for travel
  • No external power supply needed
Cons
  • Costs more than 2TB rivals per gigabyte of capacity
  • Bulkier and heavier than Samsung T7 or SanDisk Extreme drives
  • USB 3.2 Gen 2 caps speed; no Thunderbolt or USB4
  • No hardware encryption or fingerprint security

Glyph Atom Ex20 4TB Portable NVMe SSD prices at every store

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $949.99Free shippingChecked 1 h ago
    Visit Amazon
  • Best BuyNew

    Out of stock

    $957.86Free shippingChecked 1 h ago
    Visit Best Buy
  • WalmartNew

    Out of stockSold by Focus CameraReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $949.99+ $10.25 shippingChecked 1 h ago
    Visit Walmart

Store links may earn us a commission. Some prices via Klarna.

Glyph Atom Ex20 4TB Portable NVMe SSD price history

$957.86$949.99
Nov 10Nov 11

Lowest price we've seen: $949.99 on Nov 11 at Amazon; highest $957.86 on Nov 10. Tracked across 2 stores since Nov 10.

What reviewers say

Owner feedback on the Atom Ex20 is limited but consistent: buyers praise the sustained speed and the solid aluminum build, and several use it as a working drive for video projects. Complaints center on size and on the premium over 2TB drives.

What people mention
  • SpeedPraisedOwners report transfers close to the rated 2,100 MB/s and edit video directly from the drive.
  • BuildPraisedThe aluminum housing feels solid and survives being carried in a bag.
  • SizeCriticisedIt is noticeably larger and heavier than Samsung T7 or SanDisk Extreme drives.
  • HeatMixedThe drive warms up during long transfers, which some owners notice but most accept.
  • ValueMixedBuyers like the 4TB capacity but note it costs more than two 2TB drives.

About the Glyph Atom Ex20 4TB Portable NVMe SSD

The Glyph Atom EX20 NVMe SSD is a rugged, professional-grade SSD built for creators on the move. With USB-C connectivity, speeds up to 2,100 MB/s, increased thermal capacity, and real-time integrated health monitoring, Atom EX20 delivers performance and reliability that keeps pace with your creative needs anywhere. Professional Performance Atom EX20 has blistering performance with up to 2,100 MB/s read and write speeds. Great for media transfer and delivery, 4K video editing, and high-res image backups. Rugged and Travel Safe Designed to endure the elements with MIL-Standard 810F rating for shock, vibration, and dust resistance. Aluminum exo-skeleton with soft composite bumper keeps your files secure and surrounding gear safe. Increased Thermal Ceiling Solid aluminum core and outer shell allow EX20 to remove significantly more heat from the internal components. Allowing for higher sustained speeds and increased reliability. Backward Compatible Featuring the latest 20Gb USB 3.2 Gen 2x2 Type-C Port, Atom EX20 is compatible with USB 3.1, 3.0, as well as Thunderbolt 3/4/5. Production-Grade Storage Glyph has been in the storage game for over 32 years and trusted by creative professionals around the globe. Whether you are a filmmaker, photographer, or aspiring music producer, you can trust Glyph when it matters most. High-intensity SSD These drives are built for real production environments. Long takes, large files, continuous writes, and deadlines that don't pause for thermal throttling. When you're dumping cards on set, backing up a full day of footage, or working directly off an external drive, performance isn't about a momentary burst. It's about whether your SSD can maintain speed hour after hour, terabyte after terabyte. That's what high-intensity SSDs means: sustained performance under sustained pressure. Comprehensive Warranty Every Glyph drive comes with Glyph's industry leading 3-2-1 warranty. Three years of full hardware coverage, including the cables. Two years of Level-1 data recovery, and one year of advanced replacement.

Specifications

Type
SSDSource
Placement
ExternalSource
Size (GB)
4000Source
External Connection
USB-CSource

Questions and answers

Is the Glyph Atom Ex20 fast enough to edit video directly from it?
Yes. At around 2,100 MB/s read and write over USB 3.2 Gen 2, it handles 4K and moderate RAW footage for direct editing. Very high-bitrate 8K or multicam RAW may still benefit from an internal or Thunderbolt drive.
How does it compare with the Samsung T7 Shield?
The Ex20 offers 4TB in one drive and similar sequential speeds, while the T7 Shield tops out at 2TB but is smaller, lighter and rated for dust and water resistance. Choose the Ex20 for capacity, the T7 Shield for pocketability and ruggedness.
Does it work with a Mac?
Yes. It connects over USB-C and works with Apple Silicon and Intel Macs. It ships formatted for Mac use, and Windows users may need to reformat it.
Does it need a power adapter?
No. It is bus-powered over USB-C, so a single cable from your laptop is enough. On very old USB-A ports you may need a USB-C to USB-A cable and could see slower speeds.
Is the drive encrypted?
No. The Atom Ex20 has no built-in hardware encryption or fingerprint reader. You would rely on software encryption such as FileVault or BitLocker.
What comes in the box?
The drive and a USB-C cable. No power supply or adapter is included.
Where is the Glyph Atom Ex20 4TB Portable NVMe SSD cheapest?
At Amazon, for $949.99, as of our latest check.
Where can I buy the Glyph Atom Ex20 4TB Portable NVMe SSD?
3 stores we checked sell it, including Walmart, Best Buy, Amazon.

Stores we've priced the Glyph Atom Ex20 4TB Portable NVMe SSD at

  • Best Buy deals and prices
Sequential Write (MB/s)
2100Source
Sequential Read (MB/s)
2100Source
Interface
USB 3.2 Gen 2Source