This article covers Seagate disque dur Ext. 2.5インチ 1TB 拡張 USB3 STEA1000400 3428。.

The Seagate STEA1000400 is a 2.5-inch external hard drive from Seagate's Expansion series.

With 1TB of storage and USB 3.0 connectivity, it offers a straightforward plug-and-play solution for backup and extra capacity.

Its compact design and bus-powered operation make it highly portable. This is an entry-level external HDD that prioritizes simplicity and reliability over speed.

This drive uses a USB 3.0 interface and is backward compatible with USB 2.0.

It works with Windows, macOS, and Linux without additional drivers. The 2.5-inch form factor draws power directly from the USB port, eliminating the need for an external power adapter.

However, ensure you connect to a USB 3.0 port or a high-power USB 2.0 port to avoid insufficient power issues.

The Seagate STEA1000400 was released around 2019 and typically retails for around $50–$60 (2026). It comes with a 1-year warranty.

The internal drive is a Seagate 2.5-inch SATA HDD, achieving up to 120 MB/s sequential read/write speeds over USB 3.0.

It sits in the entry-level segment of external storage, offering a balance of cost and capacity for basic backup needs. The included Seagate Dashboard software enables scheduled backups.

Not suitable for frequent heavy file transfers. Extra storage for laptops: Lightweight and bus-powered, it's a convenient companion for ultrabooks or Chromebooks with limited internal storage.

Avoid using it as a primary drive for running applications. * File transfer between computers: USB 3.0 provides decent speed for moving large batches of files.

However, for repeated large transfers, an SSD or USB 3.2 Gen 2 drive would be faster.

If you need high-speed random access for gaming or professional video editing, consider an external SSD instead. The STEA1000400 is a mechanical HDD, so it's slower and more fragile than SSDs.

Avoid dropping it, especially during operation. Real-world transfer speeds hover around 100 MB/s, which is fine for backups but not for demanding workloads.

Also, note that the 1TB capacity may fill quickly if you store large media libraries. Q: Can I use this drive with a PlayStation or Xbox?

A: Yes, it works with PS4, PS5 (for PS4 games and media), and Xbox One/Series X|S for storing games and apps. Note that PS5 games cannot be played directly from an external HDD.

Format as exFAT for cross-platform use. Q: Does it come with any software?

A: Yes, Seagate Dashboard is included for automatic backup scheduling. It's compatible with Windows and macOS.

  • Q: Is it silent? A: Idle noise is minimal, but you'll hear seek sounds during access.

In a quiet room, it may be noticeable. Consider a fanless SSD if absolute silence is required.

Product Disclosure (Amazon)

  • Manufacturer: シーゲイト(SEAGATE)
  • ASIN: B07N6994DT
  • Note: This article covers a manufacturer-made product based on Amazon listing details.