This article covers Seagate Expansion デスクトップ 3.5インチ 【データ復旧 3年付】4TB 外付 ハードディスク HDD 3年保証 静音 テレビ録画 PC Win Mac PS4 PS5 4K 対応 STKP4000400.
Overview
The Seagate Expansion Desktop 3.5-inch 4TB External HDD (model STKP4000400) is a reliable bulk storage solution designed for backup, TV recording, and game console storage expansion. It connects via USB 3.0, offering transfer speeds up to 5Gbps, and works with Windows, Mac, PS5, and PS4 right out of the box without any driver installation. A standout feature is the included 3-year Rescue Data Recovery service. If the drive fails, Seagate's specialists will attempt to recover your data, providing peace of mind that's rare at this price point. The 4TB capacity can store roughly 480 hours of terrestrial digital TV or 200 hours of 4K broadcasts, making it a solid choice for home entertainment setups. Positioned in the entry-to-mid-range external HDD market, the Expansion series competes directly with Western Digital's My Book and Toshiba's Canvio line. Its key differentiator is the bundled data recovery service, which adds significant value for users who prioritize data security over raw speed.
Compatibility Guide
The drive uses a USB 3.0 interface (backward compatible with USB 2.0). Supported operating systems include Windows 10/8.1/8/7 and macOS 10.12 or later. For TV recording, it's compatible with major Japanese brands like Toshiba REGZA, Sharp AQUOS, Sony BRAVIA, Panasonic VIERA, LG, and Hisense, though not all models are guaranteed to work. Seagate recommends contacting their support for specific TV compatibility inquiries. On the gaming side, the drive is verified for use with PS5 and PS4. On PS5, it can store and play PS4 games, and store PS5 game data, but cannot play PS5-native titles directly from the USB drive. For PC users, it's plug-and-play with no additional drivers required.
Product Info
Released around 2021, the Seagate Expansion Desktop 4TB remains a popular choice in the external storage market. Pricing typically hovers around ¥35,000 on Japan, which is standard for a 4TB 3.5-inch external HDD. The drive comes with a 3-year limited warranty and the 3-year Rescue data recovery plan. This is an entry-to-mid-range product. The bundled data recovery service is its main competitive advantage over similarly priced alternatives. The drive is also designed for quiet operation, making it suitable for living rooms or bedrooms.
Best Use Cases
First, it's ideal for TV recording enthusiasts. With 4TB of space, you can record hundreds of hours of terrestrial or 4K broadcasts. Compatibility with major TV brands means it's easy to set up and start recording immediately. Second, gamers looking to expand PS5 or PS4 storage will find this drive useful. It provides ample space for PS4 game installations, freeing up the console's internal SSD for PS5 titles. The plug-and-play nature means no formatting hassles. Third, it serves as a dependable backup drive for PC users. Photographers, videographers, and anyone with large file collections can use it for scheduled backups. The included data recovery service adds an extra layer of protection against accidental data loss.
Things to Consider
This is a 3.5-inch desktop drive that requires an AC power adapter, so it's not portable. If you need a drive to carry between locations, consider a 2.5-inch portable model instead. Also, USB 3.0 is adequate for HDD speeds, but if you frequently transfer very large files, an external SSD would be significantly faster. TV compatibility is not guaranteed for all models. Before purchasing for TV recording, verify compatibility with Seagate support or check their official compatibility list. Additionally, the Rescue data recovery service does not cover TV recordings or game data — it's limited to PC and Mac files. Compared to the WD My Book 4TB, the Seagate Expansion offers the same core specs but with the added value of data recovery. Against the Toshiba Canvio Advance 4TB (a portable 2.5-inch model), the Seagate is bulkier but offers better value per gigabyte. Choose the Seagate if you prioritize data security and stationary use over portability. ## Alternatives
A direct competitor is the WD My Book 4TB, which offers similar USB 3.0 connectivity and 3.5-inch form factor. However, WD typically does not include a data recovery service at this price point, making the Seagate Expansion a better value for users concerned about data loss. Another alternative is the Toshiba Canvio Advance 4TB, a 2.5-inch portable drive that doesn't need an AC adapter. It's more portable but costs more per terabyte. For stationary use with better cost efficiency, the Seagate Expansion is the smarter choice.
Product Disclosure (Amazon)
- Manufacturer: シーゲイト(SEAGATE)
- Seller: 輸入品専門店|Hawaii Store
- Fulfilled by: 輸入品専門店|Hawaii Store
- ASIN: B093BVXYSV
- Note: This article covers a manufacturer-made product based on Amazon listing details.





