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Silver 3.5 inch internal hard drive with green circuit board and SATA connectors

Seagate

Seagate SkyHawk ST4000VXZ16 4TB 3.5" 7200RPM 256MB SATA surveillance hard drive

SKU CH-TVZB-33BKD

A 4 TB, 3.5-inch SATA drive rated for 180 TB per year and 64 simultaneous HD cameras, with 256 MB cache and 7200 RPM for continuous surveillance recording

  • Interface typeSerial ATA
  • Form factor3.5 in (8.89 cm)
  • Flash memory capacity4 TB
  • Cache memory256 unknown modifier
  • Rotational speed7,200 RPM
  • Max height2.02 in x 10.16 in x 14.69 in
  • Built for 24×7 DVR and NVR recording with video-optimised firmware
  • Handles up to 180TB per year workload for 64 simultaneous HD camera streams
  • RV sensors maintain performance in multi-bay systems for easy scaling
  • SkyHawk Health Management monitors drive condition to boost reliability
  • Three-year in-house Rescue Data Recovery Services protect against data loss

Surveillance storage for continuous recording

The Seagate SkyHawk ST4000VXZ16 is a 4 TB mechanical hard drive built for DVR and NVR security systems. It handles workloads of up to 180 TB per year and supports 64 simultaneous HD camera streams. The 7200 RPM spindle and 256 MB cache deliver sustained write performance for 24×7 video capture.

Standard 3.5-inch SATA installation

The drive fits a regular 3.5-inch bay and connects through a SATA 6 Gb/s interface. Built-in RV sensors help maintain performance in multi-bay enclosures by compensating for vibration. No special drivers or configuration are required beyond the recorder’s own setup.

SATA interface limits sustained throughput

The SATA 6 Gb/s link caps maximum sequential transfer at the interface’s theoretical ceiling. Mechanical latency and the 7200 RPM rotation speed determine real-world sustained rates, which fall well below the interface maximum. The drive is not suited for random-access workloads or boot-drive duties.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $200.99
Pricier than about 84% of the 645 comparable items (median $66.99).

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Specifications

Product
Brand nameSeagate
Model nameST4000VXZ16
Recommended useMechanical Hard Disk
Performance
Rotational speed7,200 RPM
Memory
Flash memory capacity4 TB
Storage
Cache memory256 unknown modifier
Ports & slots
Interface typeSerial ATA
Size & build
Form factor3.5 in (8.89 cm)
Max height2.02 in x 10.16 in x 14.69 in
Maximum width2.02 in x 10.16 in x 14.69 in
Maximum length2.02 in x 10.16 in x 14.69 in

Questions about this item

How can I verify the ST4000VXZ16 is operating correctly after installing it in my NVR?

Check that the NVR recognises the full 4000 GB capacity and shows zero dropped frames across up to 64 camera streams; SkyHawk Health Management will also report drive status and workload against the 180 TB/year rating.

What comes in the box with the ST4000VXZ16 and what must I source separately?

The drive itself is supplied; a SATA data cable, SATA power lead, mounting screws and any 3.5-inch drive tray or caddy required by your recorder are not included and must be purchased separately.

Which cache size should I choose for the 4 TB SkyHawk model?

This specific ST4000VXZ16 variant is fitted with 256 MB cache; there is no alternative cache option for this 4 TB capacity in the SkyHawk line.

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