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Silver 3.5 inch bare hard drive with exposed circuit board

HGST

HGST MegaScale DC 4000.B HMS5C4040BLE641 4TB 64MB SATA 6.0Gb/s 3.5" Enterprise CoolSpin internal hard drive

SKU CH-66CA-4R8CG

Enterprise 3.5" SATA hard drive delivering 4TB capacity, 64MB cache and 800K-hour MTBF for 24×7 cloud storage arrays

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • Cache64MB
  • Features24x7 accessibility for enterprise-class, capacity-optimized
  • Form Factor3.5"
  • Enterprise reliability with 800K hours MTBF
  • Continuous 24x7 operation for cloud workloads
  • 4TB capacity in standard 3.5" form factor
  • 0Gb/s SATA interface with 64MB cache
  • Advanced 512e format with dual-stage actuator

4 TB SATA enterprise drive

The HGST MegaScale DC 4000.B HMS5C4040BLE641 is a 3.5 inch internal hard drive with a 4 TB capacity and a SATA 6.0 Gb/s interface. It is built for 24x7 operation in enterprise-class, capacity-optimised applications. The bare drive includes 64 MB cache and Advanced Format 512e technology.

Suited for bulk storage arrays

This drive fits low-workload cloud storage, massive scale-out deployments, data warehousing and disk-to-disk backup. Buyers needing higher sustained throughput for transactional databases should look elsewhere. Systems limited to legacy SATA revisions will not reach the rated interface speed.

800 K hours MTBF rating

The 800 K hours MTBF figure is the key reliability metric for multi-drive environments. Dual Stage Actuator and Enhanced Rotational Vibration Safeguard support consistent performance in dense chassis. Verify that your enclosure accepts the 26.1 mm height before purchase.

Points forts

  • Enterprise reliability with 800K hours MTBF
  • Continuous 24x7 operation for cloud workloads
  • 4TB capacity in standard 3.5" form factor
  • 0Gb/s SATA interface with 64MB cache
  • Advanced 512e format with dual-stage actuator

Caractéristiques

BrandHGST
SeriesMegaScale DC 4000.B
ModelHMS5C4040BLE641 (0F22149)
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity4TB
Cache64MB
Features24x7 accessibility for enterprise-class, capacity-optimized applications
800K hours MTBF
4 terabytes of capacity
Advanced Format with 512-byte emulation (512e)
6Gb/s SATA interface
Dual Stage Actuator (DSA) and Enhanced Rotational Vibration Safeguard (RVS) for robust performance in multi-drive environments
Applications/Environments
- Low application workload cloud storage
- Massive Scale Out (MSO)
- Data warehousing & mining
- Disk-to-disk backup & archiving
Form Factor3.5"
Height (maximum)26.1mm
Width (maximum)101.6(+/-0.25)mm
Length (maximum)147mm

Questions sur cet article

Will the 3.5" form factor and SATA 6.0Gb/s interface let this drive drop into my older desktop chassis and motherboard?

Yes, the 3.5" form factor and SATA 6.0Gb/s interface match standard desktop bays and controllers, so the drive installs directly into existing hardware.

How can I verify the Advanced Format 512e and 64MB cache are active after installation?

Check the drive properties in your operating system or BIOS; they will report 512-byte emulation and a 64MB cache when the drive is recognised.

Since the packaging is listed as Bare Drive, what must I supply myself?

You will need to provide your own SATA data cable, SATA power cable, and 3.5" mounting screws or tray, as the bare drive includes none of these.

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