8TB external hard drive prices: cheapest 8TB offers by price per TB
8TB external hard drive: the cheapest new offer on amazon.com right now is Seagate Expansion 8 TB for $279.99, which is $35.00 per TB. The median of the 3 new 8TB offers is $371.99 (as of Oct 28, 2026 at 1:17 AM UTC). The list below shows all 4 offers in this size with price, condition and price timestamp, sorted by price per TB.
90 days
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| Compare | Trend 30 days | Form factor | Technology | Condition | Product | Store | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $35.00 | $279.99 | 8 TB | 0.0 % | $35.00 | n/a | 3.5" external | HDD | NewNew90d low | Seagate Expansion 8 TB90-day low | 90d lowView * | ||
| $42.50 | $339.99 | 8 TB | n/a | $27.94 | n/a | 2.5" external | HDD | UsedUsed | WD D10 Game 8 TB | |||
| $46.50 | $371.99 | 8 TB | ▼ 14.5 % | $46.50 | n/a | 3.5" external | HDD | NewNew90d low | LaCie d2 Professional 8 TB90-day low | 90d lowView * | ||
| $48.75 | $390.00 | 8 TB | ▼ 1.3 % | $37.62 | n/a | 2.5" external | HDD | NewNew | WD D10 Game 8 TB |
No offers match these filters.
How much does a 8TB external hard drive cost?
A 8TB external hard drive costs from $279.99 new on amazon.com. Half of the 3 new offers cost less than $371.99, the other half more. Per TB, that is from $35.00.
Price per TB is the total price divided by capacity, with 1 TB equal to 10^12 bytes. Shipping is not included. ratioDB checks prices regularly and shows on every offer when its price was last checked.
Which 8TB external hard drive is cheapest per TB?
The cheapest per TB right now is Seagate Expansion 8 TB at $35.00 per TB. The table shows the 3 cheapest new 8TB offers.
Cheapest new 8TB offers on amazon.com, as of Oct 28, 2026 at 1:17 AM UTC
| Model | Price | Price per TB |
|---|---|---|
| Seagate Expansion 8 TB | $279.99 | $35.00 |
| LaCie d2 Professional 8 TB | $371.99 | $46.50 |
| WD D10 Game 8 TB | $390.00 | $48.75 |
Check warranty and condition when you compare. Every row in the list shows whether an offer is new, renewed or used.
Is 8TB cheaper per TB than other sizes?
Yes, 8TB is the cheapest size per TB right now: $35.00 per TB for the cheapest new offer.
Cheapest new offer per size, external hard drives on amazon.com, as of Oct 28, 2026 at 1:17 AM UTC
Bigger models are not automatically cheaper per TB. Compare price per TB before you settle on a size.
2.5" or 3.5": which 8TB external hard drive?
External 2.5" hard drives run on USB power and fit in a pocket. External 3.5" hard drives need their own power adapter and suit desktop backups.
New 8TB external hard drives by type, as of Oct 28, 2026 at 1:17 AM UTC
| Type | New offers | Cheapest per TB |
|---|---|---|
| External 2.5" | 1 | $48.75 |
| External 3.5" | 2 | $35.00 |
Which external drive pays off is covered in Best external hard drive.
How have 8TB external hard drive prices developed?
The index for 8TB external hard drive is at $46.50 per TB and has changed by -27.1% over 30 days. Its lowest value over the last 90 days is $43.75 per TB.
The index is the median of up to 10 cheapest new offers in this size per day. The percentages only compare offers that had a price on both days. The chart above shows the history day by day.
Is a renewed or used 8TB offer worth it?
There are 1 used offers from $42.50 per TB. New starts at $35.00 per TB. A used offer pays off mainly if it is clearly cheaper and comes with a warranty.
ratioDB never includes used or renewed offers in the index. What to watch for is covered in Refurbished hard drives.
8TB external hard drive FAQ
How much does a 8TB external hard drive cost right now?
New from $279.99 on amazon.com, which is $35.00 per TB (as of Oct 28, 2026 at 1:17 AM UTC). The median of the 3 new offers is $371.99.
How current are the prices?
ratioDB checks amazon.com prices regularly, usually several times a day. Every offer shows when its price was last checked. Amazon may have changed the price since.
Why does ratioDB show price per TB?
Price per TB makes different sizes and offers comparable. You see right away whether a 8TB offer is cheap or whether another size gets you more storage for the money.
Are used offers in the list?
Yes, the list shows new, renewed and used offers, every row labeled with its condition. The index and the values in the tables of this text use new offers only.