Seagate · Internal Hard Drive

Seagate Enterprise ST18000NM000J internal hard drive price in United Kingdom

Model ST18000NM000JMPN ST18000NM000J-20PKMPN ST18000NM000JEAN 8719706020442EAN 763649138878

Storage18 TB
ConnectivitySerial ATA III
TypeHDD
Weight670 g

Lowest price incl. delivery

£522.99

at Back to the OfficeFree deliveryIn stock

3 stores
Range £522.99 – £978.97
Save up to £455.98 vs. the dearest store
3 in stock
2 with free delivery
Checked 5 Oct 2026, 18:25 UTC

Go to Back to the Office See all 3 offers

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Full specifications and side-by-side comparison

Prices in United Kingdom

3 stores · prices in GBP · updated 5 Oct 2026, 18:25 UTC

Lowest price£522.99at Back to the Office · free shippingGo to Back to the Office

Price range across 3 offers

Save up to £455.98 (47%) by choosing the cheapest store

3 of 3 stores in stock
2 with free shipping
Checked 5 Oct 2026, 18:25 UTC

Back to the OfficeLowest priceSeagate Enterprise ST18000NM000J internal hard drive 18 TB 7200 RPM 256 MB 3.5" Serial ATA III In stockFree shipping
£522.99incl. free shipping
Go to store : Back to the Office (opens in a new tab)
PCHUB.UKSeagate Enterprise ST18000NM000J internal hard drive 18 TB 7200 RPM 25 In stockFree shipping
£972.55incl. free shipping+£449.56 (86%) vs lowest
Go to store : PCHUB.UK (opens in a new tab)
PcNova.co.ukSeagate Enterprise ST18000NM000J internal hard drive 18 TB 7200 RPM 25 In stockShipping not stated
£978.97item price, shipping extra+£455.98 (87%) vs lowest
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 5 Oct 2026, 18:25 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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Product details

Identification

Brand: Seagate
Product: Enterprise ST18000NM000J internal hard drive
Full name: Seagate Enterprise ST18000NM000J internal hard drive 18 TB 7200 RPM 256 MB 3.5" Serial ATA III
Manufacturer part number: ST18000NM000J-20PK, ST18000NM000J
EAN / UPC: 8719706020442, 763649138878, 3807000009982, 4250494931342, 5704174462491
Category: Internal Hard Drive

27 specifications from the manufacturer's data sheet

Features

HDD capacity	18 TB
HDD speed	7200 RPM
HDD size	3.5"
Interface	Serial ATA III
Type	HDD
Component for	Disk array
Storage drive buffer size	256 MB
HDD interface transfer rate	6 Gbit/s
HDD sustained transfer rate	258 MiB/s
Average latency	4.16 ms
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^15 bits read
Rotational Vibration (RV) sensors	Yes
24/7 operation	Yes
Mean time between failures (MTBF)	2500000 h