Seagate
Seagate ST3500641NS 500GB 7200 RPM 16MB SATA 3.0Gb/s 3.5" internal hard drive
A 500 GB, 7200 RPM desktop drive with 16 MB cache and SATA 3.0 Gb/s interface, built for 24×7 RAID server use
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity500GB
- RPM7200 RPM
- Cache16MB
- Average Seek Time8ms
- 500 GB capacity stores large datasets for server workloads
- 7200 RPM spindle speed delivers fast sequential and random access
- 16 MB cache buffers bursts to reduce latency
- SATA 3.0 Gb/s interface integrates with existing server backplanes
- RAID-friendly features and 24x7 reliability suit continuous operation
Seagate NL35 500GB SATA drive
The Seagate NL35 ST3500641NS is a 500GB 3.5-inch internal hard drive with a 7200 RPM spindle and 16MB cache. It connects via a SATA 3.0Gb/s interface and is designed for server and RAID deployments. The bare-drive packaging suits system integrators and IT departments building or expanding storage arrays. It is not for buyers who want a consumer desktop drive with retail accessories.
Sustained 24x7 RAID operation
RAID-friendly integration features increase system uptime, optimize performance and ease management in multi-drive configurations. Superior reliability enables operation in 24x7 RAID environments without the thermal throttling seen in desktop-class units. Average seek time of 8ms and average write time of 9ms remain consistent under continuous workloads. The drive leverages SAS compatibility with SATA for tiered storage systems tuned to capacity-intensive demands.
Bare-drive installation notes
The drive arrives as a bare unit without cables, brackets or mounting screws, so installers must supply their own SATA data and power cables. Standard 3.5-inch drive bays accept the form factor directly, but server chassis may require specific carrier trays. No software configuration is needed beyond BIOS or RAID controller recognition of the SATA 3.0Gb/s link. Missing mounting hardware is the most common reason an installation stalls.
Highlights
- 500 GB capacity stores large datasets for server workloads
- 7200 RPM spindle speed delivers fast sequential and random access
- 16 MB cache buffers bursts to reduce latency
- SATA 3.0 Gb/s interface integrates with existing server backplanes
- RAID-friendly features and 24x7 reliability suit continuous operation
Specifications
| Brand | Seagate |
|---|---|
| Series | NL35 |
| Model | ST3500641NS |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 500GB |
| RPM | 7200 RPM |
| Cache | 16MB |
| Average Seek Time | 8ms |
| Average Write Time | 9ms |
| Average Latency | 4.16ms |
| Features | RAID-friendly integration features increase system uptime, optimize performance and ease management Superior reliability enables operation in 24x7 RAID environments Industry’s highest capacity ensures maximum scalability in dynamic, capacity-intensive RAID storage systems Leverages SAS compatibility with SATA to enable tiered storage systems that can be tuned to meet a wide range of performance and capacity points |
| Usage | Ideal for Servers |
| Form Factor | 3.5" |
| Shipping weight | 0.45 kg |
| Package size | 203 × 152 × 51 mm |
Questions about this item
How much power and heat does the 7200 RPM ST3500641NS produce in a 24x7 server?
The 7200 RPM spindle and 16 MB cache are built for continuous operation; Seagate rates the NL35 series for 24x7 RAID environments, so power draw and heat stay within standard 3.5" SATA limits.
What host connector and bay size does the bare-drive ST3500641NS require?
It needs a standard SATA 3.0 Gb/s port and a 3.5" drive bay; the bare-drive packaging includes no cables, brackets or rails.
Will the SATA 3.0 Gb/s ST3500641NS work in an older SAS backplane?
Yes, the drive leverages SAS compatibility with SATA so it can be used in tiered storage systems alongside SAS controllers.
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