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Black rectangular 3.5-inch desktop hard drive with USB 3.0 cable and power adapter

Seagate

Seagate Expansion 6TB USB 3.0 3.5" External Hard Drive STKP6000400

SKU CH-XPMK-27YH2 MPN STKP6000400

6 TB desktop external hard drive with USB 3.0 and 7200 RPM performance

  • Total capacity6 TB
  • Interface typeUSB 3.0
  • Form factor3.5 in (8.89 cm)
  • Cache memory1 MB
  • Rotational speed7,200 RPM
  • Setup requirementsWindows 10 or higher, or Mac OS X 10.12 or higher operating

Capacity 6TB

  • 6 TB capacity stores large media libraries
  • USB 3.0 interface enables fast file transfers
  • 7200 RPM spindle speed delivers responsive performance
  • Rescue Data Recovery Services help protect valuable data
  • Plug-and-play setup works with Windows and Mac

6 TB desktop drive for file consolidation

The Seagate Expansion STKP6000400 adds 6 TB of storage through a single USB 3.0 connection. It suits users who need to gather photos, videos and documents from multiple locations onto one device. The 3.5 inch form factor requires the included 18 W power adapter for operation. Automatic recognition on Windows 10 or higher and Mac OS X 10.12 or higher means no extra drivers are needed.

Sustained transfer behaviour on USB 3.0

The drive spins at 7200 RPM and connects via USB 3.0, so long sequential reads and writes run at the interface's practical limits rather than bursting briefly. An 18 inch cable keeps the desktop unit close to the host while the 1 MB cache handles small random I/O during background indexing or backup jobs. Performance scales with the host port; a USB 2.0 port will restrict throughput considerably.

Check power outlet and port before ordering

You need a free mains socket for the 18 W adapter and an available USB 3.0 port to reach full speed. The enclosure measures 4.92 x 1.65 x 7.04 inches and weighs 2.59 lbs, so confirm desk space for a stationary unit. Mac users planning Time Machine backups must reformat the drive first. Rescue Data Recovery Services are not offered in every country.

How it compares

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

Price $128.99
Cheaper than about 91% of the 144 comparable items (median $379.99).
Total capacity 6 TB
Lower than about 80% of the 101 comparable items (median 12 TB).
Price per TB $21.50 per TB
Cheaper than about 88% of the 101 comparable items (median $37.00 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExpansion
Model nameSTKP6000400
Total capacity6 TB
Product colorBlack
Performance
Rotational speed7,200 RPM
Storage
Cache memory1 MB
Ports & slots
Interface typeUSB 3.0
Size & build
Form factor3.5 in (8.89 cm)
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

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Questions about this item

How much power does the 6TB 7200 RPM drive draw when it runs all day?

The unit ships with an 18 W power adapter that supplies all the energy the 3.5-inch drive needs for continuous operation.

What must I already have to get the 6 TB Expansion drive working?

You need a spare USB 3.0 port and a mains socket for the 18 W adapter; Windows 10 or higher or Mac OS X 10.12 or higher handles the rest.

Will the USB 3.0 interface on this 6 TB desktop drive work with my older USB 2.0 ports?

Yes — plug it into a USB 2.0 port and it will function, but transfers will run at USB 2.0 speeds instead of the 3.0 rate.

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