The Glyph Atom EX20 4TB USB-C 3.2 Gen 2x2 Portable NVMe SSD is a rugged, bus-powered external drive that moves media at up to 2,100 MB/s over a single USB-C cable, with 4TB of capacity for camera files, edit projects, and backups.
The A20EX4000 uses a USB 3.2 Gen 2x2 (20Gb) Type-C port and also connects to USB 3.0 and Thunderbolt 3, 4, and 5 ports. Its aluminum body dissipates heat without a fan, and a removable rugged cover adds a soft composite bumper for the field.
The drive is bus-powered, so it needs no power adapter. It ships formatted for macOS and works with Windows after a reformat, which Glyph documents in a downloadable guide.
Glyph Atom EX20 Features
- Up to 2,100 MB/s read and write. The 4TB Atom EX20 reaches its top speed on a USB 3.2 Gen 2x2 port, which is fast enough for 4K video editing, large media offloads, and high-resolution image backups straight from the drive without copying files to an internal disk first.
- Speed depends on the port. Glyph states the drive only runs as fast as the connected port. A Gen 2x2 (20Gb) port on a PC gives 2,100 MB/s, while a Mac with Apple Silicon over Thunderbolt 3, 4, or 5 and a 10Gb USB-C port give about 1,050 MB/s.
- USB-C with broad port compatibility. One USB 3.2 Gen 2x2 Type-C port connects to USB 3.1, USB 3.0, and Thunderbolt 3, 4, and 5 ports. That lets one drive move between edit laptops, desktops, and field machines, with speed set by the slowest port in the chain.
- Fanless aluminum heat dissipation. A solid aluminum core and shell pull heat away from the NVMe storage, which supports sustained transfer speeds during long copies and keeps the drive silent. Quiet operation matters in edit suites, studios, and recording spaces where fan noise is unwelcome.
- MIL-STD 810F rated for shock, vibration, and dust. Glyph rates the Atom EX20 to MIL-STD 810F for shock, vibration, and dust resistance, using an aluminum exoskeleton and a soft composite bumper. It suits location work, though Glyph publishes no drop height or IP rating.
- Rugged removable cover included. The bumper cover ships in the box and can come off when you want the bare aluminum drive, for example in a rack or case. Keep it on when the drive travels loose in a camera bag or on a shoot.
- Bus-powered with a short included cable. The drive draws power from the host over USB-C, so you carry no adapter. A 15 cm USB Type-C to Type-C cable is included, which keeps the connection tidy at a laptop but may need a longer cable for a desk setup.
- 4TB capacity in a pocketable body. The drive measures 2.2 x 4 x 0.6 inches, so 4TB of NVMe storage fits in a jacket pocket or camera bag. That is enough room for many hours of 4K footage, or a full project archive, on one device.
Where the A20EX4000 Fits
Video editing on location: Edit directly from the drive or offload camera cards at up to 2,100 MB/s on a Gen 2x2 port, then carry the files back to the suite in the rugged cover.
Post-production suites: Hand off project media between edit bays on a quiet, fanless drive that connects to USB 3.0 and Thunderbolt 3, 4, and 5 ports.
Photography and archive backups: Keep a fast 4TB backup of high-resolution image libraries that connects over a single USB-C cable and needs no power supply.
Why not buy this Glyph Atom EX20 4TB SSD today?
Glyph Atom EX20 Specifications
- Model: A20EX4000
- Type: Portable external NVMe SSD
- Capacity: 4TB
- UPC: 691450005716
- Interface: USB-C 3.2 Gen 2x2 (20Gb)
- Compatible ports: USB 3.0, USB 3.1, Thunderbolt 3, 4, and 5
- Transfer speed: Up to 2,100 MB/s read and write on a USB 3.2 Gen 2x2 port; 1,050 MB/s on a 10Gb USB connection
- Power: Bus-powered
- Cooling: Fanless aluminum heat dissipation
- Durability: MIL-STD 810F rated for shock, vibration, and dust
- File system: Formatted for macOS; Windows use requires a reformat
- Included cable: USB Type-C to Type-C, 15 cm
- Drive dimensions: 2.2 x 4 x 0.6 in
- Retail box dimensions: 4.1 x 6.2 x 1.65 in
- Package weight (B&H listing): 0.795 lb
What's in the Box
- 1 x Glyph Atom EX20 4TB External SSD
- 1 x USB Type-C to Type-C cable, 15 cm
- 1 x Rugged removable external cover
Why not buy this Glyph Atom EX20 4TB SSD today?
How to Format Your Glyph to Be Used on Windows (PDF)
Need a manual for the A20EX4000? Call 833-WOLFPACK (833-965-3722) and we'll email it to you.
Why not buy this Glyph Atom EX20 4TB SSD today?
How fast is the Glyph Atom EX20 4TB SSD?
Yes, it is rated up to 2,100 MB/s read and write. That speed needs a USB 3.2 Gen 2x2 (20Gb) port, such as one on a PC with Gen 2x2 support.
Will the A20EX4000 run at full speed on a Mac?
No. Glyph lists Macs with Apple Silicon on Thunderbolt 3, 4, or 5 as running the drive at USB 10Gb, about 1,050 MB/s, because the drive only runs as fast as the connected port.
Which ports does the Atom EX20 connect to?
Yes, it works with USB 3.2 Gen 2x2 Type-C and is compatible with USB 3.1, USB 3.0, and Thunderbolt 3, 4, and 5 ports. Speed is set by the host port.
Does the Atom EX20 need external power?
No. It is bus-powered over the USB-C connection, so no power adapter is needed or included.
Can I use the Atom EX20 with Windows?
Yes. The drive ships formatted for macOS, and Glyph says it works with Windows after you reformat it. Glyph publishes a Windows formatting guide. Reformatting erases the drive, so do it before storing data.
Does the Atom EX20 have a fan?
No. It uses fanless heat dissipation through a solid aluminum core and shell, so it runs silently.
How rugged is the Atom EX20?
Yes, Glyph rates it MIL-STD 810F for shock, vibration, and dust resistance, with an aluminum exoskeleton and a soft composite bumper. Glyph does not publish a drop height or IP water rating, so don't assume water resistance.
What comes in the box with the A20EX4000?
The box holds the Glyph Atom EX20 4TB SSD, a 15 cm USB Type-C to Type-C cable, and a rugged removable external cover.
What warranty does the Atom EX20 have?
Yes, it is covered by Glyph's warranty: three years of full hardware coverage including cables, two years of Level-1 data recovery, and one year of advance replacement.
Is the 4TB model the same drive as the 1TB, 2TB, and 8TB Atom EX20?
Yes, the Atom EX20 family shares the same USB-C 3.2 Gen 2x2 design and 2,100 MB/s rating. The 4TB model is part number A20EX4000, so order that number to get this capacity.
Why not buy this Glyph Atom EX20 4TB SSD today?
HDTV Supply supplies portable NVMe SSD storage for video editors, post-production suites, field production crews, photographers, and live production teams.
The Atom EX20 connects over USB-C 3.2 Gen 2x2 and works with USB 3.1, USB 3.0, and Thunderbolt 3, 4, and 5 ports. It ships formatted for macOS and works with Windows after a reformat.
Why not buy this Glyph Atom EX20 4TB SSD today?
This Glyph Atom EX20 4TB SSD includes a 3-year full hardware manufacturer warranty, plus 2 years of Level-1 data recovery and 1 year of advance replacement. Questions? Call 833-WOLFPACK (833-965-3722).
