Seagate
Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk
Bottom line: The Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache ($249.99 on Amazon as of 2026-10-21 02:15 UTC): 8TB in a single 3.5-inch bay, no multi-drive array needed.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 8TB in a single 3.5-inch bay, no multi-drive array needed
- ✓ 256MB cache plus SATA 6Gb/s smooths burst transfers
- ✓ 5400 RPM spindle runs cooler and quieter than 7200 RPM drives
- ✓ Seagate Secure models add hardware-based data security
Cons
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
The Seagate BarraCuda ST8000DM004 is an 8TB 3.5-inch internal hard drive built for people who need bulk capacity without paying SSD prices. It spins at 5400 RPM and pairs a SATA 6Gb/s interface with a 256MB cache, a combination Seagate positions for burst performance in desktops, all-in-one PCs, home servers, and entry-level direct-attached storage. That makes it a natural landing spot for game libraries, 4K video archives, music collections, and backup images that would otherwise crowd a smaller boot drive. Seagate Secure variants of the line add hardware-based data security for users who…
SpecPicks Verdict
SpecPicks scored Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache… using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Seagate's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
What are the drive's speed and interface specs?
It is a 5400 RPM drive on a SATA 6Gb/s interface with a 256MB cache. Seagate positions the SATA 6Gb/s interface as optimizing burst performance rather than sustained throughput.
Will this fit in my laptop?
No. This is the 3.5-inch form factor (ST8000DM004), which fits desktop towers, all-in-one PCs, home servers, and external DAS enclosures. Laptops take 2.5-inch drives; Seagate makes BarraCuda models in that size separately.
How long is the warranty?
Seagate lists a 2 year limited manufacturer warranty on this drive. Check the product listing for current terms, since warranty coverage can differ by region and seller.
Do I actually get 8TB of usable space?
Not exactly. Seagate notes that available storage capacity may vary. Formatting overhead and the difference between decimal and binary capacity measurement mean the figure your operating system reports will be lower than 8TB.
Is this a good drive for a NAS or home server?
Seagate lists home servers and entry-level direct-attached storage (DAS) among the best-fit applications for BarraCuda drives, alongside desktop and all-in-one PCs. For multi-bay NAS units running 24/7, check the listing and manufacturer documentation for the workload rating before committing.
Key Features
- Cost-effective 5400 RPM internal hard drive upgrade for laptop or desktop computers, allows you to store all of your games, music, movies and more
- Seagate BarraCuda’s SATA 6Gb/s interface optimizes burst performance while Seagate Secure models offer hardware-based data security
- Best-fit applications for BarraCuda hard drives include desktop or all-in-one PCs, home servers, entry-level direct-attached storage devices (DAS)
- 2 year limited manufacturer warranty
- The available storage capacity may vary.
Full Specifications
| Brand | Seagate |
|---|---|
| Color | argentée |
| Model Name | Barracuda |
| Read Speed | 190 megabytes_per_second |
| Unit Count | 1 Count |
| Form Factor | 3.5-inch |
| Model Number | ST8000DM004 |
| Built-In Media | BarraCuda® 8TB SATA |
| Item Type Name | Seagate 8TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST8000DM004) |
| Hard-Drive Size | 8 TB |
| Mfr Part Number | ST8000DM004 |
| Number of Items | 1 |
| Special Feature | Compact |
| Hardware Platform | PC, laptop |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Desktop |
| Data Transfer Rate | 750 gigabits_per_second |
| Enclosure Material | Aluminum |
| Additional Features | Compact |
| Hard Disk Interface | SATA 6 GB/s |
Ready to buy?
Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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