Seagate
Seagate SV35.5 ST31000525SV 1TB 7200 RPM 32MB SATA 3.0Gb/s internal hard drive
A 1 TB 7200 RPM SATA 3.0Gb/s drive with 32 MB cache built for 24x7 video surveillance
- PackagingRetail
- InterfaceSATA 3.0Gb/s
- Capacity1TB
- RPM7200 RPM
- Cache32MB
- FeaturesEnterprise-class reliability for 24x7 video surveillance app
- Engineered for 24x7 surveillance recording with enterprise-class reliability
- 7200 RPM spindle speed and 32MB cache deliver responsive multi-stream performance
- SATA 3.0Gb/s interface ensures broad desktop compatibility
- 20mm form factor improves airflow in multi-drive enclosures
- ATA-7 streaming commands optimise read/write profiles for smooth video capture
Engineered for 24x7 Surveillance
The Seagate SV35.5 ST31000525SV is a 1TB internal hard drive built for continuous video recording. It operates at 7200 RPM with a 32MB cache over a SATA 3.0Gb/s interface. Enterprise-class reliability targets greater than one million hours MTBF and an annualised failure rate below one percent for demanding surveillance workloads.
Thermals, Noise and Power
A 20-mm form factor allows increased airflow between drives in multi-bay enclosures. Higher areal density contributes to lower power consumption during sustained write operations. The drive is optimised for cool, quiet performance in always-on surveillance systems where multiple units run side by side.
ATA-7 Streaming Commands
Firmware-level ATA-7 streaming commands tailor read and write profiles specifically for video streams or mixed video and data workloads. This ensures smooth, reliable footage capture while maintaining database integrity for indexing. The feature directly supports multi-stream recording without the need for host-side tuning.
Highlights
- Engineered for 24x7 surveillance recording with enterprise-class reliability
- 7200 RPM spindle speed and 32MB cache deliver responsive multi-stream performance
- SATA 3.0Gb/s interface ensures broad desktop compatibility
- 20mm form factor improves airflow in multi-drive enclosures
- ATA-7 streaming commands optimise read/write profiles for smooth video capture
Specifications
| Brand | Seagate |
|---|---|
| Series | SV35.5 |
| Model | ST31000525SV |
| Packaging | Retail |
| Interface | SATA 3.0Gb/s |
| Capacity | 1TB |
| RPM | 7200 RPM |
| Cache | 32MB |
| Features | Enterprise-class reliability for 24x7 video surveillance applications, with > 1 million hours MTBF and <1% AFR 20-mm form factor provides more ventilation in a multi-drive environment. Higher areal density for cost-effective DVR applications ATA-7 streaming commands optimize video streaming performance and integrity. Capable of operating under drive case temperatures of up to 70°C |
| Shipping weight | 0.61 kg |
| Package size | 152 × 102 × 25 mm |
Questions about this item
How is the 3.5-inch SATA drive installed, and what step is often missed?
Mount the drive in a 3.5-inch bay, connect the SATA data cable to the motherboard and the SATA power cable from the PSU, then enable the SATA port in BIOS so the OS can detect the 1TB volume.
What maintenance or replacement will the SV35.5 need during 24x7 surveillance use?
No scheduled maintenance is required; the drive is rated for continuous operation with a 1 million hour MTBF, so replacement is only needed if SMART attributes report reallocated sectors or the unit fails.
What limit appears first when the ST31000525SV writes multiple video streams continuously?
The 3.0Gb/s SATA interface and 32MB cache set the sustained throughput ceiling, so heavy multi-stream recording will hit the interface bandwidth before the 7200 RPM platters become the bottleneck.
New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
