External solid-state drives (SSDs) have become essential for backing up files, transferring large projects, and expanding your laptop‘s storage without opening the case. But prices vary wildly — an identical Samsung T7 might cost £85 on Amazon, £120 at Currys, and £95 at a specialist retailer. Understanding where to buy, which brands are reliable, and whether Thunderbolt is worth double the price will save you £30–50 and get you a faster, more dependable drive.
This guide walks you through UK retailers for external SSDs, how to choose between portable and desktop storage, USB-C vs Thunderbolt, and which brands offer the best balance of speed, durability, and price.
Best Online Retailers for External SSDs
Amazon UK (Primary Affiliate Retailer)
Amazon UK is the default choice for external SSDs in the UK. You’ll find every major brand (Samsung, SanDisk, WD, Crucial, Seagate) at competitive pricing with next-day delivery. Amazon’s A-to-Z guarantee protects you if a drive arrives dead or fails within 30 days. Most sellers offer Amazon Prime shipping, making it the fastest and cheapest option.
Pros: Largest selection, competitive pricing, fast delivery (often next-day), buyer protection, price matching (multiple sellers often undercut each other), easy returns.
Cons: Some third-party sellers mix used drives with new stock (rare but check reviews). Always verify “Sold by Amazon” or a 4.5+ star specialist retailer.
Popular external SSDs on Amazon UK:
- Samsung T7 — £50–80 (500GB–2TB). Fastest USB-C SSD, 1,050 MB/s, compact, trusted brand. Best all-rounder.
- SanDisk Extreme Portable SSD — £40–100 (250GB–2TB). Rugged, dust/water resistant, good speed. Best for outdoor/travel use.
- WD My Passport SSD — £45–95 (500GB–2TB). Reliable, compact, good warranty. Budget-friendly option.
- Samsung T9 (Thunderbolt) — £150–280 (500GB–2TB). Fastest available (1,900 MB/s), requires Thunderbolt 3/4 port. Premium choice.
Currys (High Street & Online)
Currys stocks external SSDs in-store and online. Advantage is immediate collection at your local Currys if in stock, or same-day delivery in some areas. Prices are typically 10–20% higher than Amazon but convenient if you need a drive today.
Pros: In-store collection available, same-day delivery in major cities, physical inspection before buying, extended warranty options.
Cons: Prices higher than Amazon, selection smaller, limited stock on less popular models.
Best for: Urgent purchases where next-day Amazon delivery won’t cut it. Otherwise, stick with Amazon for price.
Scan.co.uk (UK Specialist IT Retailer)
Scan is a UK-based electronics retailer specialising in storage, components, and peripherals. Good selection of external SSDs with competitive pricing (often matching or beating Amazon) and UK support. Shipping is fast (usually 1–3 days) and returns are straightforward.
Pros: UK-based, competitive pricing, good selection, fast UK shipping, responsive support.
Cons: Smaller selection than Amazon, less price transparency (requires checking each product page).
CCL Computers (UK Online & Physical Stores)
CCL is a long-established UK electronics retailer with both online and physical locations. They stock premium SSDs (Samsung, WD, SanDisk) with knowledgeable staff. Prices are competitive online; in-store you can handle products before buying.
Pros: UK-based, physical stores in multiple cities, expert staff, competitive pricing on premium models.
Cons: Selection smaller than Amazon, prices sometimes higher.
Manufacturer Direct (Samsung, WD, SanDisk)
Samsung, WD, and SanDisk all sell direct through their UK online shops. Advantage is guaranteed authenticity and manufacturer warranty. Pricing is typically in line with Amazon or slightly higher.
Samsung.com/uk: Samsung T7, T7 Shield, T7 Touch SSDs. Prices competitive, shipping to UK addresses.
WD.com/en-gb: WD My Passport, WD_Black external drives. Pricing matches Amazon on sales, above Amazon otherwise.
SanDisk.com/en-gb: Extreme and Ultra portable SSDs. Premium pricing — Amazon undercuts by 10–15%.
Best for: Warranty confirmation or if a specific model is out of stock elsewhere. Otherwise, Amazon is cheaper.
eBay UK (Budget & Secondhand, Higher Risk)
eBay has deals on new external SSDs (sometimes warehouse returns or overstocked items) and secondhand drives. Prices can be 20–30% lower than Amazon, but risk is higher. Counterfeit storage drives exist — they appear to work initially but fail catastrophically after weeks of use.
Red flags: Price suspiciously low (under £30 for a 512GB drive), seller has no feedback history, “Grade A warehouse return” with vague descriptions, unclear whether drive is new or refurbished.
Recommendation: Only buy from 99%+ feedback sellers with 5+ years trading history. New Amazon drives at £50–80 are safer than “bargains” on eBay that might be counterfeits.
USB-C vs Thunderbolt: Speed & Compatibility Explained
USB-C External SSDs (Standard)
Speed: 400–1,050 MB/s depending on drive. USB 3.1 speeds reach 550 MB/s theoretical; USB 3.2 Gen 2 reaches 1,200 MB/s theoretical. Real-world: 400–800 MB/s.
Compatibility: Works with any laptop, tablet, or phone with USB-C or USB-A (with adapter). Universal compatibility.
Price: £40–100 for 500GB–2TB.
Best for: 95% of users. Fast enough for video editing, large file transfers, and backups. Cheaper and more compatible than Thunderbolt.
Popular models: Samsung T7, SanDisk Extreme Portable, WD My Passport.
Thunderbolt External SSDs (Premium Speed)
Speed: 1,400–1,900 MB/s. Thunderbolt 3/4 protocol delivers significantly faster sustained transfer speeds than USB-C, especially for large sequential writes.
Compatibility: Requires Thunderbolt 3 or Thunderbolt 4 port (found on MacBooks from 2016 onwards, some high-end Windows laptops). Will not work on older or budget laptops without a Thunderbolt port.
Price: £150–280 for 500GB–2TB (2–3× USB-C price).
Best for: Video editors, photographers, and professionals handling multi-gigabyte files daily who have Thunderbolt ports and need maximum speed.
Popular model: Samsung T9 (Thunderbolt), OWC Envoy Pro Extreme (UK specialist retailers).
Verdict: USB-C vs Thunderbolt
Unless you’re a video editor with a 4K+ workflow and a Thunderbolt-equipped MacBook Pro, USB-C is the right choice. A Samsung T7 at £60–80 delivers 95% of the speed benefit at one-third the price. Only invest in Thunderbolt if you’re transferring hundreds of gigabytes daily and have the port.
Portable SSD vs Desktop External Storage: When to Choose What
Portable External SSDs (Compact, Bus-Powered)
Best for: Backup, file transfer, travel, journalists, photographers on location.
Pros: Pocket-sized (smaller than a phone), no external power required (bus-powered via USB), fast, reliable, shock-resistant.
Cons: Limited capacity (typically 500GB–2TB max), can overheat under sustained high load.
Price: £40–100 for 500GB–2TB.
Recommended models: Samsung T7, SanDisk Extreme Portable, WD My Passport SSD.
Desktop External Hard Drives (Large Capacity, Stationary)
Best for: Archive storage, large media libraries, long-term backup, stationary desktop setup.
Pros: Huge capacity (4TB–10TB+), cheaper per gigabyte (£0.05–0.10 per GB vs £0.08–0.15 for SSDs).
Cons: Mechanical drives are slower (5,400–7,200 RPM), noisier, less reliable than SSDs over time, require external power supply, fragile if moved.
Price: £40–120 for 4TB–8TB.
Recommended if: You’re storing 5+ TB of archives, movies, or raw video footage. Not recommended for active work files.
Verdict for Most Users: A 1TB portable SSD (£60–80) is better value than a 4TB external hard drive. SSDs are faster, more durable, and small enough to carry daily. Only buy an external hard drive if you need 5+ TB capacity or exclusively store archive files you rarely access.
Top External SSD Models Comparison
| Model | Price (500GB) | Speed | Size | Durability | Best For |
|---|---|---|---|---|---|
| Samsung T7 | £50–65 | 1,050 MB/s (USB-C) | Pocket-sized (71g) | Excellent | Best all-rounder for most users |
| SanDisk Extreme Portable | £45–60 | 550 MB/s (USB-C) | Rugged, dust/water resistant | Excellent (IP55 rating) | Outdoor, travel, rough conditions |
| WD My Passport SSD | £45–55 | 515 MB/s (USB-C) | Compact (90g) | Good (no rugged rating) | Budget-conscious users |
| Crucial X6 | £40–50 | 420 MB/s (USB-C) | Compact (79g) | Good | Budget option, slower |
| Samsung T9 (Thunderbolt) | £150–175 | 1,900 MB/s (Thunderbolt 3/4) | Pocket-sized (68g) | Excellent | Video editors with Thunderbolt port |
Retailer Comparison & Pricing
| Retailer | Price Range (1TB) | Shipping (UK) | Returns | Warranty | Best For |
|---|---|---|---|---|---|
| Amazon UK | £60–140 | Next-day typical | 30 days | Manufacturer (typically 5 years) | Best price, fast delivery |
| Currys | £80–150 | Same-day in major cities | 30 days | Extended warranty available | Urgent, in-store pickup |
| Scan.co.uk | £65–145 | 1–3 days UK | 30 days | Manufacturer | UK specialist, good price |
| CCL Computers | £70–150 | 1–3 days UK | 30 days | Manufacturer | Physical store option |
| Samsung Direct | £80–160 | 3–5 days | 30 days | 5 years Samsung | Warranty confirmation |
| WD Direct | £70–150 | 3–5 days | 30 days | 5 years WD | Warranty confirmation |
| eBay UK | £40–120 | 3–14 days | Seller-dependent | Limited (used stock) | Budget hunters only (high risk) |
Frequently Asked Questions
Which external SSD offers the best value for money in the UK?
The Samsung T7 at £50–65 for 500GB (or £70–90 for 1TB) is the best value all-rounder. It’s fast (1,050 MB/s), reliable, compact, and available everywhere. SanDisk Extreme Portable is slightly cheaper (£45–60) but slower. WD My Passport is budget (£45–55) but also slower. Unless you need ruggedness (SanDisk) or Thunderbolt speed (Samsung T9), choose the T7.
Is 500GB or 1TB better for a backup drive?
1TB (£70–90) is the sweet spot. 500GB fills up quickly if backing up multiple large files, projects, or photos. 1TB costs only £15–25 more than 500GB but gives double the capacity. 2TB (£120–160) is overkill unless you’re also using the drive for active work file storage.
Should I buy a Thunderbolt SSD or USB-C?
Unless you’re a video editor with hundreds of 4K video files and you own a MacBook Pro with Thunderbolt 3/4, USB-C is the right choice. A Samsung T7 at 1,050 MB/s is fast enough for almost all users and costs £60–80 instead of £150+. Save your money unless you’re genuinely limited by transfer speed.
Can I use the same external SSD with both Mac and Windows?
Yes, with a caveat. If the drive comes pre-formatted as EXFAT (file system), it works on both Mac and Windows out of the box. If formatted as NTFS (Windows) or HFS+ (Mac), you’ll need to reformat it to EXFAT first (erasing the drive). Portable SSDs from Samsung, SanDisk, and WD typically ship as EXFAT, so compatibility is immediate.
Is a portable SSD better than an external hard drive?
For most users: yes. Portable SSDs are faster (400–1,050 MB/s vs 80–160 MB/s for mechanical drives), more durable (no moving parts), smaller, and more reliable. External hard drives only make sense if you need 5+ TB capacity or exclusively store archive files you rarely access. For active work and regular backup, a 1TB SSD at £70–90 beats a 4TB external hard drive at £60–100.
What warranty do external SSDs typically have?
Most reputable brands (Samsung, WD, SanDisk) offer 5-year warranties covering manufacturing defects. Warranty is non-transferable in most cases — if you buy secondhand, warranty doesn’t carry to the new owner. Always buy new drives from authorised retailers to ensure full warranty coverage. Amazon’s 30-day return policy provides additional protection during the critical first month.
Recommended Products
These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.
| Product | Why We Recommend It | Amazon UK |
|---|---|---|
| Samsung 990 Pro 2TB NVMe M.2 2280 | Fastest consumer NVMe — ideal for gaming & editing | View on Amazon UK |
| WD Black SN850X 2TB NVMe | Excellent Gen4 speed with heatsink option | View on Amazon UK |
| Crucial P5 Plus 1TB NVMe | Great value Gen4 SSD | View on Amazon UK |
| Kingston NV2 1TB NVMe | Budget-friendly with solid reliability | View on Amazon UK |
| Anker 341 7-in-1 USB-C Hub | Best budget single-monitor dock | View on Amazon UK |
| CalDigit TS4 Thunderbolt 4 Dock | Premium dock with 18 ports | View on Amazon UK |
| Ugreen 9-in-1 USB-C Hub | Budget dock with Ethernet included | View on Amazon UK |
| Plugable TBT3-UDZ Thunderbolt 3 Dock | Best mid-range dual-display dock | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
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