Product Description
Toshiba S300 4TB — surveillance-grade storage for DVR/NVR builds
A 3.5" SATA III (6 Gb/s) drive from Toshiba's S300 line, spec'd for 24/7 write-heavy recording rather than desktop duty cycles. Spindle speed is 5400 RPM, giving stable sequential throughput for continuous video streams rather than peak IOPS — the right trade-off for DVR/NVR ingest.
Key specs
- Capacity: 4TB
- Interface: SATA III, 6 Gb/s, 3.5" form factor
- Spindle speed: 5400 RPM
- Workload: designed for continuous 24/7 operation
- Series: Toshiba S300 (surveillance-optimised)
- MPN / alt code: HDD-4TB-TOSHIBA-S300, also listed as HDWT840UZSVA
Fit on the job
Drop-in for most modern DVR and NVR chassis taking a standard 3.5" SATA bay. The S300's write profile is built to hold up under multi-camera simultaneous streaming, reducing the frame-loss risk that consumer drives can show under sustained recording load. Suited to residential, commercial and small-business installs where the recorder is expected to run unattended around the clock.
Stock this against jobs where channel count and retention period are already fixed and you just need a drive rated for the duty cycle — not a general-purpose desktop HDD repurposed into a recorder.
Specifications
- Brand
- Toshiba
Technical Specifications
Frequently Asked Questions
What interface and form factor does the Toshiba S300 4TB use?
It's a 3.5" drive with a SATA III interface running at 6 Gb/s, matching the standard bay found in most DVR and NVR recorders.
What spindle speed does this drive run at?
5400 RPM, chosen for stable sequential write performance on continuous video recording workloads rather than peak random-access speed.
Is the S300 4TB rated for 24/7 operation?
Yes — it's designed for continuous 24/7 operation, which is the duty cycle expected of always-on CCTV recording.
Is this drive listed under any other part number?
Yes, this SKU is also listed as HDWT840UZSVA.
