I’m TechRadar’s HDD expert and this Prime Day deal is probably the best external hard drive offer ever

deals
(Image credit: Future)

As part of the Prime Day sales, Amazon has the cheapest hard disk drive per unit storage on the market right now and, lo and behold, it is an external hard drive rather than an internal one, despite the added component costs.

The Seagate Expansion Desktop 14TB is on sale for $179.95, down from $239.95 at Amazon, its lowest price ever

That's not all - Walmart and Newegg also have the drive in stock for $179.99 respectively at the time of writing.

Seagate Expansion 14TB external hard drive: was $239.95now $179.95 at Amazon
Today's HDD offer

Seagate Expansion 14TB external hard drive: was $239.95 now $179.95 at Amazon
Nothing comes close to the 14TB Seagate Expansion Desktop external hard drive when it comes to sheer value for  money. Its cost per Terabyte is far cheaper than the competition and the free data recovery service is a real boon. This drive is also available from Walmart and Newegg for just a few cents more.

At just over $12.85 per TB, it is quite a bargain especially when you consider that Seagate’s own internal 14TB HDD cost about half more. So, yes, it’s cheaper to buy a desktop external hard drive like the Expansion desktop and pry it open to extract the HDD inside.

It uses the archaic SuperSpeed Micro-B flat USB port to deliver up to 5Gbps (more likely half that speed); just be cognizant that this is not a common cable should you want to replace it due to malfunction or loss. Note that it requires an AC adaptor to work.

14TB is enough capacity to hold about 700 4K movies and the STKP14000400 as it is known is small enough to be carried around easily. Seagate bundles a two-year rescue service should your drive fail; this data recovery plan nicely complements the two-year warranty that covers the drive.

Can't find the right Seagate deal? Then check out alternatives from Western Digital by looking at our Western Digital coupon codes page. 

TOPICS
Desire Athow
Managing Editor, TechRadar Pro

Désiré has been musing and writing about technology during a career spanning four decades. He dabbled in website builders and web hosting when DHTML and frames were in vogue and started narrating about the impact of technology on society just before the start of the Y2K hysteria at the turn of the last millennium.

Read more
A SeaGate BarraCuda, one of the best hard drive picks, against a TechRadar background
Largest desktop hard drive ever breaks another record; 28TB Seagate Expansion desktop hard drive has lowest Terabyte cost I've seen in 2025
Seagate Exos 28TB Factory Recertified HDD
Hundreds of the world's largest hard disk drive have mysteriously gone on sale online as refurbished model - should you buy them?
black ssd against blue background
This 2TB SSD fits in the palm of your hand – and it's currently cheaper than it was during Black Friday
Several of the best external hard drive picks on a desk with a laptop
Best external hard drive of 2025
The Seagate Game Drive External SSD for PS5 box on a blue background with white lowest price text
I've used this Seagate external SSD for PS5 for months and find it even easier to recommend at this lowest-ever price
A WD_Black SN850X SSD with heat sink against a TechRadar background
Look, I know 8TB of SSD storage just isn't enough for all your games, but this WD_Black SN850X SSD is $80 off during Newegg's 'After Christmas' sale
Latest in Computing Components
Nvidia geforce rtx 3050
RTX 5050 rumors detail full spec of desktop graphics card, suggesting Nvidia may use slower video RAM – but I wouldn’t panic yet
Nvidia logo on a dark background
Nvidia's GeForce graphics driver woes continue for some users, despite 572.75 hotfix's overclock and black screen promises
AMD Ryzen 9000 3D chips
AMD officially announces price and release date for Ryzen 9 9900X3D and 9950X3D processors
A masculine hand holding the Nvidia GeForce RTX 5070 Ti
Budget gamers rejoice as Nvidia RTX 5050 and RTX 5060 are rumored to launch in April
PC Gamer looking happy
AMD might go for Nvidia’s jugular in Q2 with a faster RX 9070 ‘Extreme’ GPU that could leave the RTX 5070 Ti in the dust
An AMD Radeon RX 9070 XT made by Sapphire on a table with its retail packaging
Bad news PC gamers - it seems AMD's aggressively low price for its Radeon RX 9070 GPU will only be for a limited time
Latest in Deals
Apple Watch SE, Garmin Forerunner 55, Samsung Galaxy Watch FE
Amazon secret smartwatch sale! Grab an Apple Watch SE, Samsung Galaxy Watch FE, or Garmin Forerunner 55 for under $170
Apple MacBook Air M3 on yellow background with lowest price text overlay
Forget the MacBook Air M4: here are 9 older-model MacBook deals from $629.99
March Madness TV deals
Best Buy just launched a mega March Madness TV sale: record-low prices from $259.99
Sony WH-CH520 Wireless Bluetooth Headphones in cappuccino color on cyan radar background with price cut sign
These excellent cheap Sony headphones are now just $38 at Amazon
The Amazon Fire TV 43-inch 4-Series TV on a red background with text saying Big Savings.
Snag this super-cheap 43-inch Amazon Fire TV for a record-low price
The Apple AirPods 4 on a blue background with text saying Lowest Price.
Quick! The Apple AirPods 4 are back down to under $100 at Amazon