Seagate · External Hard Drive

Seagate Expansion STKM4000400 external hard drive price in United Kingdom

Model STKM4000400MPN STKM4000400EAN 763649160480EAN 3660619040254

Storage4 TB
Weight257 g
ColourBlack
USB version3.2 Gen 1 (3.1 Gen 1)

Lowest price incl. delivery

£138.78

at PCHUB.UKFree deliveryIn stock

3 stores
Range £138.78 – £176.99
Save up to £38.21 vs. the dearest store
3 in stock
2 with free delivery
Checked 6 Oct 2026, 05:40 UTC

Ad · prices and stock as last reported by the store; the store's checkout is what counts.

Full specifications and side-by-side comparison

Prices in United Kingdom

3 stores · prices in GBP · updated 6 Oct 2026, 05:40 UTC

Lowest price£138.78at PCHUB.UK · free shippingGo to PCHUB.UK

Price range across 3 offers

Save up to £38.21 (22%) by choosing the cheapest store

3 of 3 stores in stock
2 with free shipping
Checked 6 Oct 2026, 05:40 UTC

PCHUB.UKLowest priceSeagate Expansion STKM4000400 external hard drive 4 TB 2.5" 3.2 G In stockFree shipping
£138.78incl. free shipping
Go to store : PCHUB.UK (opens in a new tab)
Back to the OfficeSeagate Expansion STKM4000400 external hard drive 4 TB 2.5" 3.2 Gen 1 (3.1 Gen 1) Black In stockFree shipping
£176.99incl. free shipping+£38.21 (28%) vs lowest
Go to store : Back to the Office (opens in a new tab)
PcNova.co.ukSeagate Expansion STKM4000400 external hard drive 4 TB 2.5" 3.2 G In stockShipping not stated
£138.78item price, shipping extra
Go to store : PcNova.co.uk (opens in a new tab)

Ad: we may earn a commission when you buy through these links; it never changes the order, which is by total price only. Prices and stock are shown as each store states them, as of 6 Oct 2026, 05:40 UTC, and can change at any time. Taxes are included only where the store includes them.

Price history in United Kingdom

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Best price · PCHUB.UK£138.78

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Product details

Identification

Brand: Seagate
Product: Expansion STKM4000400 external hard drive
Full name: Seagate Expansion STKM4000400 external hard drive 4 TB 2.5" 3.2 Gen 1 (3.1 Gen 1) Black
Manufacturer part number: STKM4000400
EAN / UPC: 763649160480, 3660619040254
Category: External Hard Drive

19 specifications from the manufacturer's data sheet