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Seagate Barracuda 20TB 3.5-Inch Internal Desktop Hard Drive

Twenty terabytes of drop-in desktop storage spinning at 7200rpm with a generous 512MB cache

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Overview

The Seagate Barracuda ST20000DM001 stakes its appeal on sheer capacity. Twenty terabytes in a single 3.5-inch drive is a lot of headroom, and Seagate aims this one squarely at desktop and all-in-one PC owners who need high-performance, high-capacity storage without juggling multiple smaller disks. The 7200rpm spindle speed places it above slower archival drives, while the 6Gb/s SATA interface keeps it compatible with the connectors already found in most desktop builds.

Construction follows the familiar Barracuda desktop blueprint. It is a standard 3.5-inch unit designed to slot into an existing drive bay, so installation is a matter of mounting, connecting SATA data and power, and formatting. A 512MB cache buffer backs the platters to help absorb bursts and steady out longer transfers. This specific version is an Amazon.co.jp exclusive that arrives in eco-friendly simple packaging and comes through an authorized dealer, with Japanese-language chat support available before purchase. Buyers should note that the source material does not specify a warranty length or workload rating, so anyone comparing it against competing high-capacity drives will want to confirm those details directly.

Key Features

(Amazon.co.jp Exclusive) Eco-Friendly Packaging with Simple Packaging Box

[Supports Japanese chat before purchase] Seagate.com/jp/ja/contacts/

Applications: High-performance, high-capacity storage for desktop and all-in-one PCs

Specifications

Brand
Seagate
Series
Barracuda
Model
ST20000DM001/EC
Capacity
20TB
Form Factor
3.5 inch
Interface
SATA 6Gb/s
Spindle Speed
7200rpm
Cache
512MB
Intended Use
Desktop and all-in-one PCs
Packaging
Eco-friendly simple packaging box

Frequently Asked Questions

It is built for desktop and all-in-one PCs. As a standard 3.5-inch internal drive, it fits into an internal drive bay rather than laptops or portable enclosures.
It runs at 7200rpm and uses a 6Gb/s SATA interface. That spindle speed is quicker than typical 5400rpm high-capacity drives, though still a mechanical disk rather than an SSD.
The drive carries a 512MB cache buffer. This larger buffer helps smooth out sustained reads and writes during bigger file transfers and general desktop workloads.
Yes. It uses the standard 3.5-inch form factor and a 6Gb/s SATA connection, so it drops into typical desktop drive bays and connectors without special hardware.
This version ships in an eco-friendly simple packaging box and is sold through an authorized dealer, with Japanese-language chat support offered before purchase via Seagate's regional contact page.

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