# HDTB420EK3AA — Portable 2TB External Hard Drive USB 3.0 > 東芝HDTB420EK3AAポータブル外付けハードドライブ2.5"2TB USB 3.0 summary. Toshiba HDTB420EK3AA: 2TB portable external HDD with USB 3.0, up to 540 MB/s read, bus-powered, console compatible. Tags: hdd, toshiba, portable, 2tb, usb-3-0, external-storage Source: https://www.amazon.co.jp/dp/B07994QL95 Article page: https://web-autoai.com/articles/hdtb420ek3aa252tb-usb-30?lang=en Prices and ratings change over time — check the article page for the current values. --- This article covers 東芝HDTB420EK3AAポータブル外付けハードドライブ2.5"2TB USB 3.0. The Toshiba HDTB420EK3AA is a 2TB portable external hard drive in a compact 2.5-inch form factor. It connects via USB 3.0 and offers read speeds up to 540 MB/s, making it suitable for backing up data, storing large files, and expanding storage for laptops, desktops, and game consoles. This drive sits in the entry-level to mid-range market, balancing Toshiba's reliability with an affordable price point. It's a solid choice for users who need a simple, plug-and-play storage solution without the premium cost of an SSD. Interface: USB 3.0 (backward compatible with USB 2.0/1.1). Supported OS: Windows, macOS, and game consoles like PlayStation and Xbox. Form factor: 2.5-inch, bus-powered (no external power adapter needed). No driver installation required; works out of the box. * Note: Performance drops significantly when connected to a USB 2.0 port. Released around 2018, this model remains widely available. Check the retailer's page for the latest price. Warranty is the standard one year from Toshiba. It's sold through major electronics retailers and online stores. Market positioning: entry to mid-range. The 2TB capacity and USB 3.0 speed are adequate for everyday backups and file transfers. However, it lacks support for USB 3.2 Gen 2 or Thunderbolt, so users needing faster transfer speeds should look elsewhere. Backup beginners: First-time external HDD buyers. Simple setup, 2TB is enough for photos, documents, and music. Laptop users: Those running out of internal storage. Compact and portable, works on bus power. Console storage expansion: PS4 and Xbox One users wanting extra game storage. Not recommended for PS5/Xbox Series X|S due to speed limitations. Secondary backup drive: For keeping a copy of important data separate from the main SSD. This is a mechanical HDD, so it's more fragile than an SSD. Handle with care and avoid drops. USB 3.0 only (5 Gbps). If you need faster transfers (10 Gbps or more), consider a USB 3.1 Gen 2 or Thunderbolt drive. 2TB may be insufficient for heavy 4K video editing or large game libraries. Consider 4TB+ models if you need more space. Competitors include Seagate and Western Digital portable HDDs at similar prices. Compare warranty and features before buying. Q: Can I use this HDD with a Mac? A: Yes, it mounts as a read-only drive on macOS (NTFS format). For write support, reformat to exFAT or install a third-party NTFS driver. Q: Can I play PS5 games directly from this drive? A: No, PS5 games require the internal SSD or a certified NVMe SSD. This drive works for PS4 game storage and backup on PS5. Q: What real-world transfer speeds can I expect? A: The advertised 540 MB/s is sequential read. In practice, large file transfers average 100–150 MB/s. Small random files will be slower. ### Product Disclosure (Amazon) - Manufacturer: 東芝(TOSHIBA) - Seller: MUSE WORLD - Fulfilled by: MUSE WORLD - ASIN: B07994QL95 - Note: This article covers a manufacturer-made product based on Amazon listing details.