External hard drives Black Friday UK Buying Guide 2026
For external HDDs this Black Friday, decide whether you need portable storage or a desktop backup drive, then compare the capacity and connection you will actually use. Judge an early offer on the complete drive and enclosure, including any required power supply. The lowest per-TB price is useful only when the whole product fits your backup routine.
Prices checked:
Amazon Black Friday sale: 19–30 November 2026
Black Friday itself is 27 November, but Amazon’s sale starts on 19 November. Early offers can be available before then. Check each offer’s current price, condition, Prime requirements and any end date before buying.
Dates confirmed by Amazon · Announcement updated 10 November 2026.
Buy an early offer or keep watching?
Buy now when…
Buy when the capacity, USB connection, power requirements and included accessories suit your devices and backup plan.
Keep watching when…
Keep watching if a low price means a smaller capacity, an unsuitable power arrangement or a product intended for another use.
Before you buy
Check the exact model and included cables. Do not assume a particular internal drive is fitted or that removing it preserves the warranty.
Amazon Black Friday: 19–30 November 2026
Amazon’s Black Friday sale runs 19–30 November 2026; Black Friday itself is 27 November. Early offers can already be available before the main sale. Use this buying guide to compare suitable models, condition, sellers and the complete purchase cost.
Early offers you can buy now
Current retailer promotions and Amazon-reported markdowns. Each label states the evidence: a reduction against a listed RRP is not confirmation of a Black Friday promotion. Any reported Prime restriction or deal end time appears with the offer.
| Product & condition | Key details | Current price |
|---|---|---|
| Amazon markdownSeagate 20TB Expansion Desktop Hard Drive New · Seller: Amazon 22% below Amazon's listed RRP/list price |
Checked: 2026-11-13 16:09 UTC | £521.99£26.10/TBinc VAT Buy on Amazon |
| Amazon markdownWD 5TB Elements Portable External Hard Drive New · Seller: Amazon 18% below Amazon's listed RRP/list price |
Checked: 2026-11-13 17:39 UTC | £166.99£33.40/TBinc VAT Buy on Amazon |
| Amazon markdownSeagate 8TB Expansion Desktop Hard Drive New · Seller: Amazon 16% below Amazon's listed RRP/list price |
Checked: 2026-11-13 17:39 UTC | £227.99£28.50/TBinc VAT Buy on Amazon |
| Amazon markdownSeagate 6TB Expansion Desktop Hard Drive New · Seller: Amazon 14% below Amazon's listed RRP/list price |
Checked: 2026-11-13 17:09 UTC | £177.99£29.67/TBinc VAT Buy on Amazon |
| Amazon markdownWD 18TB Elements Desktop External Hard Drive New · Seller: Amazon 3% below Amazon's listed RRP/list price |
Checked: 2026-11-13 17:39 UTC | £439.99£24.44/TBinc VAT Buy on Amazon |
External hard drives price drops before Black Friday
Below the listing's own average of prior daily prices for the same condition. Only the current price is shown. A price drop does not confirm a retailer's Black Friday promotion.
No sufficiently established price drop is available in this category right now. Regular tracked listings appear below.
Regular tracked listings at current prices
All matching in-stock listings, including regular prices. Each product appears once at its cheapest available offer, with condition and seller shown. Product classes are sorted separately.
| Product & condition | Key details | Current price |
|---|---|---|
| WD 18TB Elements Desktop External Hard Drive New · Seller: Amazon |
Checked: 2026-11-13 17:39 UTC | £439.99£24.44/TBinc VAT Buy on Amazon |
| WD 12 TB Elements Desktop External Hard Drive New · Seller: Amazon |
Checked: 2026-11-13 17:39 UTC | £309.99£25.83/TBinc VAT Buy on Amazon |
| Seagate 20TB Expansion Desktop Hard Drive New · Seller: Amazon |
Checked: 2026-11-13 16:09 UTC | £521.99£26.10/TBinc VAT Buy on Amazon |
| Seagate 8TB Expansion Desktop Hard Drive Used · Seller: Amazon Resale |
Checked: 2026-11-13 17:39 UTC | £213.23£26.65/TBinc VAT Buy on Amazon |
| WD 16TB Elements External Hard Drive New · Seller: Quality Value Supplies |
Checked: 2026-11-13 17:39 UTC | £428.95£26.81/TBinc VAT Buy on Amazon |
| Seagate 20TB Expansion Desktop Hard Drive New · Seller: Amazon EU |
Checked: 2026-11-13 16:09 UTC | £536.69£26.83/TBinc VAT Buy on Amazon |
| Seagate 6TB Expansion Desktop Hard Drive Used · Seller: Amazon Resale |
Checked: 2026-11-13 17:09 UTC | £164.01£27.33/TBinc VAT Buy on Amazon |
| WD 12TB My Book external hard drive New · Seller: Amazon |
Checked: 2026-11-13 17:39 UTC | £337.99£28.17/TBinc VAT Buy on Amazon |
| Seagate 8TB Desktop Hard Drive New · Seller: Amazon EU |
Checked: 2026-11-13 17:09 UTC | £231.38£28.92/TBinc VAT Buy on Amazon |
| WD 6TB Elements Portable External Hard Drive Used · Seller: Amazon Resale |
Checked: 2026-11-13 17:39 UTC | £178.77£29.80/TBinc VAT Buy on Amazon |
| WD 5TB Elements AE Portable External Hard Drive Used · Seller: Amazon Resale |
Checked: 2026-11-13 17:39 UTC | £150.34£30.07/TBinc VAT Buy on Amazon |
| Seagate 8TB One Touch Desktop Hard Drive New · Seller: Amazon |
Checked: 2026-11-13 17:39 UTC | £245.99£30.75/TBinc VAT Buy on Amazon |
Show 7 more listings
| Product & condition | Key details | Current price |
|---|---|---|
| WD 5TB Elements Portable External Hard Drive New · Seller: Amazon |
Checked: 2026-11-13 17:39 UTC | £166.99£33.40/TBinc VAT Buy on Amazon |
| WD 4TB Elements AE Portable External Hard Drive Used · Seller: Amazon Resale |
Checked: 2026-11-13 17:39 UTC | £135.59£33.90/TBinc VAT Buy on Amazon |
| WD 4TB Elements Portable External Hard Drive New · Seller: Amazon |
Checked: 2026-11-13 17:39 UTC | £147.99£37.00/TBinc VAT Buy on Amazon |
| Seagate 10TB Expansion Desktop Hard Drive New · Seller: NXTech |
Checked: 2026-11-13 17:09 UTC | £374.98£37.50/TBinc VAT Buy on Amazon |
| Seagate Expansion Desktop New · Seller: Walimax Limited |
Checked: 2026-11-13 17:09 UTC | £304.53£38.07/TBinc VAT Buy on Amazon |
| Seagate Expansion Portable Used · Seller: TOP TEK DEALS |
Checked: 2026-11-13 17:09 UTC | £82.60£41.30/TBinc VAT Buy on Amazon |
| Seagate Game Drive Hub 8TB New · Seller: GOODS GILLORE |
Checked: 2026-11-13 17:39 UTC | £350.00£43.75/TBinc VAT Buy on Amazon |
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How DatacenterDisk Compares UK Prices
Prices come from the Amazon Creators API for Amazon.co.uk through the existing UK refresh service. We do not convert US or German prices to pounds or carry discounts across marketplaces. Each row shows when its price was last checked. Prices and availability can change after that check; the price on Amazon.co.uk at checkout applies.
A price drop needs at least seven prior daily observations of the same product in the same condition, with the current price at least five per cent below their average. The comparison uses available days in the previous 30 days and excludes today. A short record is not a complete 30-day average. Newly discovered products first appear in the regular table. Historical prices and per-listing discount percentages are not displayed.
Price per TB divides the current offer price by the recorded capacity. It does not measure reliability, performance or suitability. Mini PCs, UPS units, docks, empty enclosures and networking parts have no useful storage cost per TB, so a dash appears instead. Condition stays attached to the offer: used stock is not presented as new, and a low price does not establish the warranty or included accessories.
What to Check Before Buying
Start with the exact part number. Check the interface, form factor and requirements of the system receiving the part. Compare new and used stock separately, then read the seller, return terms and warranty on the actual offer. We do not test these products ourselves or confirm compatibility from a price or listing title.
Use the price-per-TB comparison for the ongoing price overview, and read about refurbished enterprise drives before weighing used stock against a new drive. Offers and seller names come from the Amazon listing; Amazon.co.uk is the only merchant priced in this UK section.