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Rectangular black external SSD with integrated keypad and USB 3.0 cable

Apricorn

Apricorn Aegis Padlock ASSD-3PL256-480F 480 GB internal hard drive

SKU CH-TZJ3-K5FEH MPN ASSD-3PL256-480F

Hardware-encrypted 480 GB solid-state drive with USB 3.0 reaching 205 MB/s read and 185 MB/s write speeds

  • InterfaceUSB 3.0
  • Hardware encryption protects data without software
  • 480 GB capacity stores large files and backups
  • Read speeds up to 205 MB/s for quick access
  • Write speeds up to 185 MB/s for fast saves
  • Rugged design resists shock, vibration and crushing

Encrypted portable SSD for secure data

The Apricorn Aegis Padlock ASSD-3PL256-480F is a 480 GB external solid-state drive with hardware-based 256-bit AES encryption. It is designed for professionals who must protect sensitive files while working across PC and Mac platforms. The drive requires no software installation and unlocks via an onboard keypad.

USB 3.0 interface caps real-world throughput

The drive connects through a USB 3.0 host interface with a Y-auxiliary power cable included. Sequential reads reach 205 MB/s and writes reach 185 MB/s, so large transfers are limited by the bus rather than the internal flash. An 8 MB buffer helps smooth burst workloads within that ceiling.

Ruggedised chassis survives physical abuse

The enclosure is rated vibration resistant, shock resistant and crush resistant for field use. A travel pouch is supplied for additional protection during transport. Buyers who need internal 2.5-inch or M.2 form factors, or who require higher speeds than USB 3.0 allows, should look elsewhere.

Highlights

  • Hardware encryption protects data without software
  • 480 GB capacity stores large files and backups
  • Read speeds up to 205 MB/s for quick access
  • Write speeds up to 185 MB/s for fast saves
  • Rugged design resists shock, vibration and crushing

Specifications

InterfaceUSB 3.0
Shipping weight0.45 kg
Package size102 × 76 × 25 mm

Questions about this item

Which capacity of the Aegis Padlock SSD should I pick if I need 480 GB of encrypted storage?

The ASSD-3PL256-480F model provides exactly 480 GB of hardware-encrypted capacity, so it matches that requirement directly.

What do the 205 MB/s read and 185 MB/s write speeds mean when the drive is connected to my computer?

Those are the maximum sequential transfer rates the drive can sustain over USB 3.0; real-world speeds will vary with file sizes, system load and the host controller.

How does the USB 3.0 interface limit performance in practice?

USB 3.0 caps the theoretical bandwidth at 5 Gb/s, so the drive’s 205 MB/s read and 185 MB/s write ceilings are set by that interface rather than the internal SSD.

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