Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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$23.99
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Seagate
Seagate ST3500320SV 500GB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive
A 500GB 3.5-inch SATA drive spinning at 7200 RPM with 32MB cache, built for 24x7 video surveillance recording
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity500GB
- RPM7200 RPM
- Cache32MB
- Average Latency4.16ms
- Designed for 24x7 surveillance with > 1 million hours MTBF
- 7200 RPM spindle and 32MB cache deliver high throughput
- SATA 3.0Gb/s interface for broad system compatibility
- 500GB capacity stores multiple simultaneous video streams
- 16ms average latency supports responsive recording performance
Surveillance-Grade 500 GB Drive
The Seagate SV35.3 ST3500320SV is a 500 GB 3.5-inch internal hard drive built for continuous video recording. It spins at 7200 RPM with a 32 MB cache and connects over a SATA 3.0 Gb/s interface. The drive is supplied as a bare unit and carries a design target of more than one million hours MTBF with an annualised failure rate below one percent.
Always-On Recording Workloads
This drive suits installers and system integrators deploying DVRs, NVRs or JBOD arrays that must write multiple streams around the clock. It is not intended for desktop boot duties, gaming libraries or workloads that demand the low latency of solid-state storage. Buyers who need higher capacities or faster random access should evaluate other storage classes.
SATA 3.0 Gb/s Interface
The single specification that decides fit is the SATA 3.0 Gb/s host connection. Any recorder or server backplane limited to this generation will accept the drive directly, while controllers that only support newer SATA speeds will still operate at the 3.0 Gb/s rate.
Highlights
- Designed for 24x7 surveillance with > 1 million hours MTBF
- 7200 RPM spindle and 32MB cache deliver high throughput
- SATA 3.0Gb/s interface for broad system compatibility
- 500GB capacity stores multiple simultaneous video streams
- 16ms average latency supports responsive recording performance
Specifications
| Brand | Seagate |
|---|---|
| Series | SV35.3 |
| Model | ST3500320SV |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 500GB |
| RPM | 7200 RPM |
| Cache | 32MB |
| Average Latency | 4.16ms |
| Features | 24x7 reliability with > 1 million hours MTBF and < 1 percent AFR Improved data transfer rates (read/write speeds) enabling higher-performance video recording Recording of multiple simultaneous video streams while maintaining high data integrity Applications Video surveillance digital video recorder Video surveillance network digital video recorder Direct-attached JBOD video storage Network-attached JBOD video storage |
| Usage | Ideal for Servers |
| Form Factor | 3.5" |
| Shipping weight | 0.45 kg |
| Package size | 203 × 152 × 51 mm |
Questions about this item
Which SV35.3 version should I pick for a 500 GB surveillance array?
This model is the 500 GB variant of the SV35.3 series, offering 7200 RPM and 32 MB cache in a 3.5 inch form factor.
What does the 7200 RPM rating deliver in a live DVR?
The spindle speed supports sustained write throughput for multiple simultaneous video streams with low average latency of 4.16 ms.
How does the SATA 3.0 Gb/s interface limit real-world transfer?
The SATA 3.0 Gb/s link caps burst throughput at 3.0 Gb/s, so sustained rates will stay within that ceiling during recording.
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