This article covers Seagate 内蔵ハードディスク 3.5インチ 4TB PCユーザー向け BarraCuda ( SATA 6Gb.

Overview

The Seagate BarraCuda ST4000DM005 is a 3.5-inch internal hard disk drive with a 4TB capacity. It features a SATA 6Gb/s interface, 5900RPM spindle speed, and a 64MB cache. Designed for desktop PCs, this drive offers a cost-effective way to add significant storage for media, games, backups, and more. As part of Seagate's long-standing BarraCuda family, known for reliability over two decades, the ST4000DM005 sits in the entry-to-mid-range segment, offering great value per gigabyte. This model is ideal for users who need large capacity without the premium cost of SSDs. The drive comes with a 2-year warranty and supports password protection via Self-Encrypting Drive (SED) technology, adding a layer of data security for sensitive files.

Compatibility Guide

The ST4000DM005 uses the standard 3.5-inch form factor, fitting into any desktop chassis with a 3.5-inch bay. It requires a SATA data cable and a SATA power connector from your power supply. Most modern motherboards include multiple SATA ports, making installation straightforward. The drive supports SATA 6Gb/s (SATA III) and is backward compatible with SATA II (3Gb/s) ports, though performance will be limited to the slower interface speed. For a 4TB drive, you must initialize it using the GPT partition scheme to utilize the full capacity—MBR only supports up to 2TB. Power consumption is modest (typical under 5W idle, ~8W active), so any standard PSU can power it without issue.

Product Info

The Seagate BarraCuda ST4000DM005 has been on the market since around 2017 and remains widely available as of 2026. Priced at approximately ¥26,780 on Japan, it offers a compelling cost per terabyte (around ¥6,700/TB). This positions it as an entry-to-mid-range product focused on value rather than performance. Key specifications: 4TB capacity, SATA 6Gb/s interface, 5900RPM spindle, 64MB cache, 3.5-inch form factor, and a 2-year warranty. While not the fastest HDD (5900RPM vs 7200RPM), it balances speed, noise, and heat effectively for bulk storage. Market position: competing with other 4TB 5900RPM drives like the Western Digital Blue series, the BarraCuda offers comparable performance and reliability at a similar price point.

Best Use Cases

  1. Bulk Media Storage Ideal for storing large media libraries (photos, videos, music) where capacity matters more than speed. The 4TB can hold thousands of high-res movies or hundreds of thousands of songs. The 5900RPM speed is sufficient for streaming media without buffering. 2. Game Library Drive For gamers on a budget, installing games on an HDD frees up SSD space for the OS and favorite titles. The BarraCuda provides adequate load times for most games, especially those not requiring ultra-fast storage. It's a cost-effective way to expand storage for large game installations. 3. Backup Destination Use this drive as an internal backup target for system images or file backups. Its large capacity allows full system backups without compression. The SED feature can help protect backup data from unauthorized access.

Things to Consider

  1. Speed Limitations This HDD is significantly slower than any SSD, especially in random read/write operations. Do not install your OS or frequently used applications on it; performance will be noticeably worse than an SSD. For sequential transfers (large files), it's acceptable but still slower than 7200RPM drives. 2. Spindle Speed vs. 7200RPM At 5900RPM, this drive is slower than the 7200RPM models in the same family (like the BarraCuda Pro). If you frequently move large files (e.g., video editing), consider a 7200RPM drive. For typical home use, the difference is minor. 3. Warranty Duration Only 2 years, which is shorter than most SSDs (5–10 years) and some HDDs (3–5 years). Plan for potential replacement or maintain regular backups. 4. 4TB Capacity and OS Support Ensure your system supports GPT partitioning; older 32-bit systems may not boot from GPT drives. Also, the drive is not recommended for 24/7 NAS use (prefer NAS-specific drives like Seagate IronWolf).

Product Disclosure (Amazon)

  • Manufacturer: シーゲイト(SEAGATE)
  • ASIN: B01LZ5PED5
  • Note: This article covers a manufacturer-made product based on Amazon listing details.