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Black rectangular desktop hard drive enclosure, 3.5 inch form factor, USB 3.0 cable and power adapter included

Seagate

Seagate Expansion 20TB external hard drive USB 3.0 STKP20000400

SKU CH-DAAP-X0KXH MPN STKP20000400

20 TB desktop external hard drive with USB 3.0 interface and included Rescue Data Recovery Services

  • ColorBlack
  • InterfaceUSB 3.0
  • Capacity20TB
  • System RequirementsCompatible with most Windows and macOS1 systems. Visit seaga
  • Form Factor3.5"
  • Dimensions7.03'' x 1.65' 'x 4.92

Capacity 20TB

  • 20TB capacity stores massive media libraries and backups
  • USB 3.0 interface delivers fast file-transfer speeds
  • Plug-and-play setup recognised automatically by Windows and macOS
  • Includes Rescue Data Recovery Services for added file protection
  • 5-inch desktop form factor with 18W power adapter included

20TB desktop storage for backups and archives

The Seagate Expansion 20TB desktop drive adds high-capacity external storage for users who need to back up large media libraries, project files or system images. It connects through a single USB 3.0 port and requires its own power adapter, so it suits a fixed workstation rather than mobile use. The drive arrives formatted for Windows and is recognised automatically by macOS after a quick reformat for Time Machine.

Plug-and-play setup with one common issue

Installation is straightforward: attach the 18W power adapter, connect the supplied 18-inch USB 3.0 cable and the drive appears in the file manager within seconds. No driver installation is needed on supported Windows or macOS versions. The only frequent stumbling block is forgetting the external power brick — the 3.5-inch mechanism will not spin up on bus power alone, so the drive stays invisible until the adapter is plugged in.

Verify port type and reformat needs before ordering

Your computer must provide a USB 3.0 port to achieve the rated transfer speed; older USB 2.0 ports will work but at reduced throughput. macOS users planning to use Time Machine should budget time for the required reformat to APFS or HFS+. The package includes the drive, cable, power adapter and a quick start guide, plus access to Rescue Data Recovery Services for added data protection.

Highlights

  • 20TB capacity stores massive media libraries and backups
  • USB 3.0 interface delivers fast file-transfer speeds
  • Plug-and-play setup recognised automatically by Windows and macOS
  • Includes Rescue Data Recovery Services for added file protection
  • 5-inch desktop form factor with 18W power adapter included

Specifications

BrandSeagate
SeriesExpansion
ModelSTKP18000400
ColorBlack
InterfaceUSB 3.0
Capacity20TB
System RequirementsCompatible with most Windows and macOS1 systems. Visit seagate.com/os for details.
USB 3.0 port (required for USB 3.0 transfer speeds)2
Form Factor3.5"
Dimensions7.03'' x 1.65' 'x 4.92
Weight2.59lb
Package ContentsSeagate® Expansion desktop hard drive
18-inch (45.72cm) USB 3.0 cable
18W power adapter
Quick Start Guide
Rescue Data Recovery Services 3
Shipping weight1.36 kg
Package size216 × 216 × 76 mm

Other versions of this model

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Questions about this item

How do I verify the 20TB drive is working after connecting the 18W power adapter and 18-inch USB 3.0 cable?

The drive appears in Windows File Explorer or macOS Finder once plugged in; open it and copy a test file to confirm read and write access.

What comes in the box and what must I purchase separately for the STKP20000400?

The package includes the 3.5-inch drive, 18-inch USB 3.0 cable, 18W power adapter, quick start guide and Rescue Data Recovery Services; no extra items are required for basic operation.

Which capacity version of the Seagate Expansion desktop drive should I choose?

This model provides 20TB of storage; select it if you need that capacity, otherwise consider the other Expansion capacities offered by Seagate.

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