This article covers Seagate Barracuda 20TB 内蔵ハードドライブ 7200 U.

Overview

Seagate Barracuda 20TB is a 3.5-inch internal hard drive that embodies decades of HDD engineering. With a massive 20TB capacity, 7200 RPM spindle speed, and a 512MB cache, it delivers consistent sequential read/write performance around 190MB/s, making it a solid choice for bulk data storage. The SATA 6Gb/s interface ensures broad compatibility with most desktop PCs, NAS enclosures, and external USB adapters. This drive is purpose-built for users who need to store large amounts of data without breaking the bank. It's ideal for archiving photo and video libraries, game installations, backups, or media server content. While it can't match the speed of an SSD, its cost per terabyte is significantly lower, making it a practical choice for capacity-constrained builds. Positioned as an entry-level to mid-range consumer HDD, the Barracuda 20TB offers a good balance of price, performance, and reliability. Seagate backs it with a 2-year limited warranty, and the brand's long-standing reputation gives users confidence in long-term data retention.

Compatibility Guide

This drive uses the standard 3.5-inch form factor and a SATA 6Gb/s interface. It can be installed in any desktop PC with a free 3.5-inch drive bay and a SATA data cable. The drive requires a SATA 15-pin power connector from the PSU. Most modern ATX power supplies include at least a few such connectors, but users with older or smaller PSUs should verify availability. When used in a NAS, the drive is compatible with most consumer NAS units that support 3.5-inch SATA drives. However, it's not rated for 24/7 operation in high-vibration environments, so for enterprise NAS duties, consider Seagate's IronWolf series instead. For optimal performance, connect the drive to a SATA 6Gb/s port. If connected to a SATA 3Gb/s port, the transfer rate will be limited to about 150MB/s, which still works but doesn't fully utilize the drive's capabilities.

Product Info

Released around 2024, the Seagate Barracuda 20TB (model ST20000DM001) is priced at approximately ¥83,500 in Japan. It comes with a 2-year limited warranty. The drive features a 7200 RPM spindle speed, 512MB cache, and sequential transfer rates of up to 190MB/s (both read and write). Market positioning: entry to mid-range. The Barracuda series is Seagate's mainstream consumer line, offering a good balance of capacity, speed, and price. It's not aimed at enterprise workloads but serves home users and small businesses well.

Best Use Cases

① Bulk data archiving: Ideal for users who need to store large media libraries, project files, or backups. The 20TB capacity can hold thousands of hours of video or hundreds of games. Pair with an SSD for the OS and frequently used apps. ② Home media server: Works well in a Plex or Jellyfin server for storing movies, music, and photos. The 7200 RPM speed helps with streaming multiple 4K streams simultaneously in a well-configured setup. However, for 24/7 operation, consider a NAS-rated drive for better reliability. ③ Budget-conscious large storage: For users who need a lot of storage without spending a lot per terabyte, this HDD is an excellent choice. It's far cheaper than SSDs at this capacity, making it practical for game libraries, video editing archives, and general file storage.

Things to Consider

The main drawback is speed: at ~190MB/s sequential, it's much slower than even a SATA SSD (500MB/s+). Random access performance is particularly poor, so avoid using it as a boot drive or for running applications. The 7200 RPM also means more noise and heat compared to 5400 RPM drives or SSDs. At 20TB, a single drive failure means a lot of data loss. Always maintain a backup strategy. The drive is not designed for vibration-heavy environments like RAID arrays in enterprise servers; for such use, Seagate's IronWolf or Exos lines are better suited. Competitors include Western Digital's WD Red Pro (20TB) and Toshiba's MG series. The Barracuda offers a slight price advantage but lacks the enhanced vibration protection and extended warranty of enterprise drives. ## FAQ
Q: Can I install this drive in a PlayStation 5 or Xbox Series X? A: No, those consoles use NVMe SSDs internally. You can use this HDD in an external USB enclosure for game storage and backups, but PS5 games cannot be played directly from an external USB drive. Q: Is this drive suitable for a NAS? A: It can be used in a consumer NAS for home use, but it's not rated for 24/7 operation in high-vibration environments. For a NAS that runs constantly, you're better off with a NAS-specific model like the IronWolf or WD Red Pro that includes vibration sensors and a higher workload rating. Q: How fast is the write speed in real-world use? A: You can expect around 190MB/s for large sequential writes, which means a 10GB file takes about 50 seconds. However, transferring many small files (e.g., a photo folder) will be much slower due to the mechanical

Product Disclosure (Amazon)

  • Manufacturer: シーゲイト(SEAGATE)
  • Seller: リサイクルん
  • Fulfilled by: Amazon
  • ASIN: B0F1NK3437
  • Note: This article covers a manufacturer-made product based on Amazon listing details.