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Rectangular silver metal SSD with rounded edges and USB-C port visible

Glyph

Glyph A4000EV 4TB internal SSD

SKU CH-1X2T-MPE02 MPN A4000EV

4TB internal SSD with USB 3.2 Gen2 Type-C interface delivering up to 1050 MB/s NVMe performance in a rugged portable enclosure

  • Total capacity4 TB
  • Sequential read speedUp to 1,000 MB/s
  • Interface typeUSB 3.2 Gen2 Type-C (Compatible with USB 3.0 and Thunderbolt
  • Product typeInternal Solid State Drive (SSD)
  • Intended useConsumer
  • Product depth111.76 mm
  • 4TB capacity stores large media libraries and backups
  • Up to 1,050 MB/s NVMe read/write speeds accelerate file transfers
  • USB 3.2 Gen2 Type-C works with USB 3.0 and Thunderbolt 3 hosts
  • Fan-less heat dissipation keeps the drive cool without noise
  • Rugged removable cover protects the SSD during transport

4TB portable NVMe SSD

The Glyph Atom EV provides 4TB of NVMe storage in a compact enclosure that connects through a USB 3.2 Gen2 Type-C port. It is aimed at creators and professionals who need fast external capacity for media libraries, backups or active project files.

Replaces slower USB 3.0 drives

Moving from a USB 3.0 external drive to this 10Gbps interface can cut large-file transfer times roughly in half when the host port supports the full standard. The jump is worth it for workflows that move multi-gigabyte assets daily and where the host system has a compatible Type-C or Thunderbolt 3 connection.

Limited by 10Gbps USB ceiling

Sequential reads top out at 1000 MBps and writes at 1050 MBps, so the drive cannot saturate faster Thunderbolt 3 or USB4 links. Sustained throughput will also depend on the host controller, cable quality and thermal conditions inside the fan-less enclosure.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $307.99
Pricier than about 69% of the 1,994 comparable items (median $180.49).
Total capacity 4 TB
Higher than about 90% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 1,000 MB/s
Lower than about 58% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $77.00 per TB
Cheaper than about 92% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameGlyph
Product lineAtom EV Portable
Model nameA4000EV
Total capacity4 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 1,000 MB/s
Ports & slots
Interface typeUSB 3.2 Gen2 Type-C (Compatible with USB 3.0 and Thunderbolt 3)
Size & build
Overall height12.7 mm
Overall width44.45 mm
Product depth111.76 mm
Shipping weight0.22 kg
Package size152 × 76 × 51 mm
In the box
Included itemsGlyph Atom EV External SSD
USB-C to USB-C Cable
USB-C to USB-A Cable
Rugged removable external cover

Questions about this item

Will the drive fit in a standard 2.5-inch drive bay?

The drive measures 12.7 mm high, 44.45 mm wide and 111.76 mm deep, so it is narrower than a typical 2.5-inch bay and would need an adapter or bracket.

What cables are included for connecting to different ports?

The box contains a USB-C to USB-C cable and a USB-C to USB-A cable, letting you plug into USB 3.2 Gen2, USB 3.0 or Thunderbolt 3 ports.

What real-world transfer speed can I expect?

The drive is rated for up to 1000 MB/s sequential read and up to 1050 MB/s NVMe performance, though actual speeds depend on the host port and file sizes.

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