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Silver 3.5 inch enterprise hard drive in server tray

Western Digital

Western Digital P37677-001 18TB 7200 RPM SATA 3.5" internal hard drive

SKU CH-482T-59HHW MPN P37677-001

18 TB enterprise hard drive with 7200 RPM, 512 MB cache and helium-sealed design for servers and storage arrays

  • Total capacity18 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Recording methodCMR
  • Rotational speed7,200 RPM
  • Cache memory512 MB
  • Massive 18TB capacity stores vast datasets
  • 7200 RPM spindle delivers sustained 269 MB/s throughput
  • Helium-sealed design reduces friction for reliable enterprise operation
  • 512MB cache accelerates frequent data access
  • Advanced Format 512e ensures broad system compatibility

Capacity and Interface

This 18TB 3.5-inch internal hard drive uses a SATA 6.0Gb/s interface and spins at 7200 RPM. It is built with helium-sealed CMR technology and a 512MB cache for sustained throughput in enterprise environments.

Who This Suits

System builders deploying HP ProLiant Generation 11 servers or compatible DAS and NAS enclosures will find the factory-installed Gen11 tray and Power Disable Pin 3 support simplify installation. Buyers needing a different physical interface or a non-enterprise firmware load should look at other drive classes.

Deciding Specification

The sustained data transfer rate reaches up to 269 MB/s, a figure that determines whether the drive can meet the throughput demands of backup, archiving and big-data analytics workloads.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $386.99
Pricier than about 89% of the 4,938 comparable items (median $107.99).
Total capacity 18 TB
Higher than about 93% of the 2,372 comparable items (median 2 TB).
Price per TB $21.50 per TB
Cheaper than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital/HP
Product lineGeneration 11
Model nameMB018000GXLAV
Part numberP44757-005
Total capacity18 TB
Performance
Rotational speed7,200 RPM
Storage
Recording methodCMR
Cache memory512 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Does this 3.5-inch drive fit a standard desktop drive bay?

Yes, the 3.5-inch form factor matches standard desktop and server bays. It ships installed in a Western Digital/HP Gen11 tray that is compatible with Gen10+ and Gen11 ProLiant servers.

How do I install the drive, and what step is often missed?

Slide the tray into the hot-swap bay until it clicks, then secure the latch. The step often missed is enabling the SATA port in BIOS so the 18TB volume appears to the operating system.

What maintenance will this helium-sealed drive need over its life?

No internal maintenance is required because the helium-sealed enclosure is closed for life. Keep firmware current using the vendor utility and monitor SMART attributes for reallocated sectors or temperature spikes.

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