We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Seagate

Seagate ST4000NM0065 4TB 7200 RPM SAS 12Gb/s 128MB 3.5" internal hard drive

SKU CH-4K52-WN63C MPN ST4000NM0065

4 TB 7200 RPM SAS 12 Gb/s 3.5" enterprise drive with 128 MB cache and CMR technology for 24x7 bulk-data workloads

  • PackagingBare Drive
  • Interface512n SAS
  • Capacity4TB
  • RPM7200 RPM
  • Cache128MB
  • Average Latency4.16ms
  • Enterprise capacity with industry-leading CMR technology
  • 7200 RPM and 128 MB cache for high throughput
  • 12 Gb/s SAS interface for easy RAID integration
  • Engineered for 24x7 workloads of 550 TB per year
  • Advanced Write Caching with dual processors for consistent performance

Enterprise 4 TB SAS 12Gb/s drive

The Seagate ST4000NM0065 is a 3.5-inch internal hard drive built for enterprise storage arrays and servers. It delivers 4 TB of capacity on a 12Gb/s SAS interface with a 7200 RPM spindle and 128 MB cache. Conventional magnetic recording technology ensures consistent performance in dense, multi-drive environments.

Replaces lower-capacity nearline SAS drives

This model upgrades from smaller enterprise SAS drives when bulk-data workloads demand higher density per slot. The 550 TB per year workload rating supports 24×7 operation at ten times the endurance of desktop-class drives. Advanced write caching algorithms boost efficiency for random read and write patterns.

Verify SAS backplane and 12Gb/s controller support

Confirm your chassis accepts 3.5-inch drives with a 26.10 mm height and standard SAS power and data connectors. A 12Gb/s SAS HBA or RAID controller is required to utilise the full interface speed. The 512n sector format simplifies integration into existing RAID sets without 512e or 4Kn translation overhead.

Highlights

  • Enterprise capacity with industry-leading CMR technology
  • 7200 RPM and 128 MB cache for high throughput
  • 12 Gb/s SAS interface for easy RAID integration
  • Engineered for 24x7 workloads of 550 TB per year
  • Advanced Write Caching with dual processors for consistent performance

Specifications

BrandSeagate
ModelST4000NM0065
PackagingBare Drive
Interface512n SAS
Capacity4TB
RPM7200 RPM
Cache128MB
Average Latency4.16ms
FeaturesCapacity-Optimized Enterprise Hard Drive for Bulk-Data Applications
- 1TB to 8TB*1, 3.5-inch enterprise drive with industry-leading conventional magnetic recording (CMR) technology
- Advanced Write Caching feature enables up to 100% performance improvement in random writes over last-generation drive
- 12Gb/s SAS and SATA 6Gb/s interfaces in industry-standard formats (512n, 512e and 4Kn) for easy integration into replicated and RAID multi-drive storage servers and systems
- State-of-the-art cache, on-the-fly error-correction algorithms, super parity and end-to-end SAS-based data integ
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Shipping weight0.68 kg
Package size305 × 254 × 203 mm

Questions about this item

Will the 26.10 mm height and 101.85 mm width fit a standard 3.5-inch drive bay?

Yes, the drive meets the 3.5-inch form-factor maximums of 26.10 mm height and 101.85 mm width, so it fits any standard bay and tray.

How do I connect the 12 Gb/s SAS interface, and what is the common mistake?

Attach a SAS 12 Gb/s cable to the drive's SAS port and a compatible controller; the frequent error is using a SATA-only backplane or controller that cannot negotiate the 12 Gb/s link.

When should I plan to replace this drive under a 550 TB-per-year workload?

The drive is engineered for 550 TB per year; divide your actual annual writes by 550 to estimate the service interval, then replace before that limit is reached.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.