This article covers 東芝 S300 8TB 監視 3.5インチ 内蔵ハードドライブ.

Overview

The Toshiba S300 series is purpose-built for 24/7 video surveillance systems, and the HDWT380UZSVAR is the 8TB flagship of the lineup. It uses conventional magnetic recording (CMR), which means consistent write performance under sustained loads—no SMR write cliff. With a 7200 RPM spindle speed and a generous 256MB cache, this drive handles multiple HD camera streams without hiccups. It also carries an impressive 180TB/year workload rating, making it a reliable choice for both dedicated NVRs and high-uptime file servers. Backed by Toshiba’s 3-year warranty, the S300 strikes a solid balance between capacity, durability, and price. Built-in rotary vibration (RV) sensors help the drive maintain stable performance when installed alongside other HDDs, an important feature for multi-bay NAS or RAID setups. The drive’s power draw is modest—around 4.5W at idle and 7.5W under load—so it won’t stress your PSU. If you are building a security DVR, a home NAS, or just need cheap bulk storage, this 8TB model is a strong candidate.

Compatibility Guide

Form factor: 3.5-inch, fits standard desktop drive bays, hot-swap caddies, and most NAS enclosures. Interface: SATA 6Gb/s (backward compatible with SATA II/III). Power connector: Standard SATA power connector (15-pin). Mounting: Horizontal or vertical position OK; use rubber grommets to reduce vibration noise in tight cases. * RAID/Controller: Works with all common RAID controllers, HBA cards, and motherboard SATA ports. No special firmware required.

Product Info

Release date: 2019 (still in active production). Price range: Approximately ¥132,855 on (as of June 2026). Warranty: 3 years from Toshiba. Recording technology: CMR—no SMR performance degradation on rewrites. Market position: Mid-range surveillance HDD, positioned between entry-level desktop drives and enterprise-class drives. Its workload rating and RV sensors make it suitable for light enterprise surveillance and heavy SOHO use. Operating temperature: 0°C to 65°C, wide enough for attic or outdoor-adjacent enclosures.

Best Use Cases

Security DVR/NVR: Designed to record video streams 24/7. Supports up to 64 HD cameras without frame drops. Perfect for both home security and small business surveillance. Home NAS with RAID: CMR technology and RV sensors make this drive RAID-friendly. Build a 2‑ or 4‑bay NAS for backups, media storage, or file sharing—the 8TB capacity gives plenty of headroom. * Bulk cold storage: If you need to archive photos, videos, or project files and don’t need the speed of an SSD, this HDD offers one of the best cost-per‑terabyte ratios on the market. Use it as a secondary drive for data hoarding. ## Alternatives
Seagate SkyHawk 8TB (ST8000VE001): Same capacity and intended use. Seagate’s ImagePerfect firmware focuses on reducing frame loss during concurrent streams. The Toshiba S300 edges ahead in multi‑drive vibration handling thanks to its RV sensors. WD Purple 8TB (WD80PURZ): Another CMR 7200RPM surveillance drive with AllFrame technology. Price is usually similar; WD has slightly broader brand recognition among system integrators, but Toshiba often undercuts it on street price.

Things to Consider

This is not a desktop performance drive. Random I/O and seek times are typical for a 7200RPM HDD (~4.2ms read seek, ~10ms write). Do not install your OS or frequently accessed applications on it. Sequential transfer rates cap around 250MB/s, which is fine for video streaming but far slower than any SATA SSD or NVMe drive. Noise and vibration are present: idle noise is around 22-25 dBA and seek noise can reach 28 dBA. In a quiet home office, consider using vibration-dampening mounts or placing the drive in a well‑insulated case. The 180TB/year workload rating is high but not unlimited. If you plan to write more than 500GB every day, the drive may degrade faster than expected, and exceeding the rating could void the warranty. Monitor your write volume.

Product Disclosure (Amazon)

  • Manufacturer: 東芝(TOSHIBA)
  • Seller: 輸入本舗T-market
  • Fulfilled by: 輸入本舗T-market
  • ASIN: B07NTDWDGL
  • Note: This article covers a manufacturer-made product based on Amazon listing details.