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Black rectangular desktop hard drive enclosure with USB 3.0 cable and power adapter

Seagate

Seagate Expansion 16TB 3.5" USB 3.0 external hard drive STKP16000400

SKU CH-EAZJ-E6ZPX MPN STKP16000400

A 16 TB desktop drive adds massive storage via USB 3.0 for Windows 10 and Mac OS X 10.12 systems

  • Total capacity16 TB
  • Interface typeUSB 3.0
  • Setup requirementsWindows 10 or higher, or Mac OS X 10.12 or higher operating
  • Product colorBlack
  • Key featuresThe Seagate Expansion desktop drive provides extra storage f
  • Product dimensions4.92 in × 1.65 in × 7.04 in

Capacity 16TB

  • Massive 16TB capacity stores vast media libraries and backups
  • USB 3.0 interface delivers fast file transfers for large projects
  • Plug-and-play setup works instantly on Windows and Mac
  • Includes Rescue Data Recovery Services for added data protection
  • Toolkit backup software simplifies automated file protection

Capacity and Interface

The Seagate Expansion STKP16000400 is a 16TB 3.5-inch desktop external hard drive that connects through USB 3.0. It delivers a large pool of storage in a single enclosure for users who need to add capacity quickly. No internal installation is required.

Who this suits and who should look elsewhere

This drive suits Windows 10 or Mac OS X 10.12 users with an available USB 3.0 port who want drag-and-drop file storage for documents, photos and videos. It is not for buyers who need bus-powered portability, internal drive speeds or a ruggedised enclosure for travel.

Deciding specification

The single specification that decides fit is the 16TB capacity combined with the USB 3.0 interface and mandatory power adapter. If your workflow needs more space than that or cannot accommodate a desktop form factor with external power, this is not the right part.

How it compares

Measured against everything we stock in High-Capacity External Drives, at today’s prices. Recalculated every night.

Price $260.99
Cheaper than about 66% of the 144 comparable items (median $379.99).
Total capacity 16 TB
Higher than about 70% of the 101 comparable items (median 12 TB).
Price per TB $16.31 per TB
Cheaper than about 94% of the 101 comparable items (median $37.00 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExpansion
Model nameSTKP16000400
Total capacity16 TB
Product colorBlack
Ports & slots
Interface typeUSB 3.0
Size & build
Product dimensions4.92 in × 1.65 in × 7.04 in
Product weight2.59 lb (1.17 kg)
Shipping weight1.34 kg
Package size218 × 212 × 77 mm

Other versions of this model

5 more in the same range

Questions about this item

What operating system and port must my computer have to use the 16 TB Expansion drive?

The drive requires Windows 10 or higher, or Mac OS X 10.12 or higher, and an available USB 3.0 port for full transfer speeds.

Will the included 18 W power adapter work with the 3.5" drive I already keep on my desk?

Yes, the 18 W adapter is packaged specifically for this 3.5" Expansion desktop drive and provides the power it needs.

How can I confirm the 16 TB drive is operating correctly after I plug it in?

The drive should appear in Windows File Explorer or macOS Finder with its full capacity shown, and files should copy at USB 3.0 speeds.

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