This article covers 東芝 3.5インチ HDD 4TB 内蔵型 録画 監視カメラ用 24時間稼働可能 【国内正規代理店品】 2年保証 DT02ABA400V24H-2YW.

Overview

The Toshiba DT02ABA400V24H-2YW is a 4TB 3.5-inch internal hard drive designed specifically for surveillance and continuous recording applications. With a 5400 RPM spindle speed and a 256 MB buffer, it delivers stable sequential write performance optimized for multi-stream video recording. It uses SMR (Shingled Magnetic Recording) technology to achieve high capacity at a competitive price point. Rated for 24/7 operation with a 1 million hour MTBF and an annual workload of 180 TB, this drive is built to handle the constant write demands of security DVRs and NVRs.

Compatibility Guide

This drive uses a standard SATA 6 Gbps interface and fits into any 3.5-inch internal drive bay. It is compatible with most surveillance video recorders, network video recorders, and desktop PCs. Note that it does not support the Streaming Feature Set (AV command), so it is not recommended for direct TV recording use unless your device specifically supports SMR drives without AV commands. Power consumption is very low at around 4.5W during read/write, making it suitable for systems with limited power budgets.

Product Info

The DT02ABA400V24H-2YW was introduced in 2021 and is positioned as a mid-range, value-oriented surveillance drive. It comes with a 2-year warranty provided by the authorized distributor. The drive's market positioning is between consumer desktop HDDs and higher-end NAS drives (like WD Red Pro or Seagate SkyHawk). It offers 4 TB of storage in a single 3.5-inch form factor. The SMR recording technology allows for a lower cost per gigabyte compared to CMR alternatives, but at the expense of random write performance.

Best Use Cases

Surveillance system builders: This drive is optimized for constant, sequential writes from multiple camera streams. It's a cost-effective choice for home or small business security DVRs. However, if your system requires frequent random writes or uses a RAID configuration that doesn't handle SMR well, consider a CMR surveillance drive. Media storage for archived content: If you need a large, cheap storage pool for files that are written once and read often (like a media library or backup archive), the SMR performance is acceptable. Not ideal for a scratch disk or working directory. * Budget-conscious users expanding existing PC storage: When used as a secondary data drive in a desktop, it works fine for storing large files like videos, photos, and game libraries. Avoid using it as a boot drive.

Things to Consider

The SMR architecture means random write performance is significantly slower than CMR drives. This drive is not suitable for operating system installation, database applications, or any workload involving frequent small-file writes. Additionally, the lack of AV command support may cause compatibility issues with some TV recorders. If you need a drive for a NAS running ZFS or a RAID array, SMR drives can cause performance degradation and rebuild failures; choose a CMR alternative. At this price point, you may also find CMR drives from other brands, so compare carefully. ## FAQ
Q: Can I use this HDD for TV recording? A: No, this model does not support AV commands needed for most TV recorders. Look for Toshiba's "TV recording" series instead. Q: Is this drive good as a boot drive for a PC? A: Not recommended. SMR drives have very slow random write speeds, making Windows boot and application launches sluggish. Use an SSD for the OS drive. Q: How does it compare to WD Purple or Seagate SkyHawk? A: All are surveillance-oriented, but WD Purple and Seagate SkyHawk are CMR-based (or have CMR variants), offering better random write performance and AV command support. The Toshiba DT02ABA400V is generally cheaper but with lower write performance.

Product Disclosure (Amazon)

  • Manufacturer: 東芝(TOSHIBA)
  • ASIN: B094VVT9HQ
  • Note: This article covers a manufacturer-made product based on Amazon listing details.