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Silver 3.5-inch enterprise hard drive in HP Gen11 tray

Seagate

Seagate P44757-005 Generation 11 18TB 7200 RPM SATA 6.0Gb/s 256MB 3.5in internal hard drive

SKU CH-2T4W-83Y4G MPN P44757-005

An 18TB 7200 RPM SATA enterprise drive with helium sealing, 256MB cache and 270 MB/s sustained transfer for 24/7 workloads

  • Total capacity18 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Recording methodCMR
  • 18TB capacity stores massive datasets
  • 7200 RPM spindle delivers sustained 270 MB/s throughput
  • Helium-sealed CMR design built for 24/7 enterprise workloads
  • 256MB cache accelerates random read and write operations
  • Hot-swap support in 3.5in tray fits Gen11 ProLiant servers

18 TB Enterprise Hard Drive for Servers

The Seagate Generation 11 drive delivers 18 TB of storage on a 3.5 inch SATA 6.0 Gb/s interface. It spins at 7200 RPM with a 256 MB cache and uses CMR recording technology. The helium-sealed design is rated for 24/7 operation in enterprise NAS, DAS, workstation and data centre environments.

Helium-Sealed Build with Hot-Swap Tray

A helium-sealed enclosure reduces internal friction and supports continuous duty cycles. The drive ships installed in an HP Gen11 3.5 inch tray that fits Gen10+ and Gen11 ProLiant servers, enabling hot-swap replacement without powering down the chassis. SATA connectors follow the standard 6.0 Gb/s pin-out for direct backplane attachment.

Verify SATA Backplane and Tray Clearance

Confirm that your server or storage array accepts 3.5 inch SATA drives and provides a compatible Gen10+ or Gen11 hot-swap bay. The included tray is required for proper alignment in listed ProLiant DL and ML models. Systems without a matching backplane or tray will not support this drive.

How it compares

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

Price $445.99
Pricier than about 90% 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 $24.78 per TB
Cheaper than about 89% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate/HP
Product lineGeneration 11
Model nameMB018000GYDKR
Part numberP44757-005
Total capacity18 TB
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Recording methodCMR
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

What real-world throughput does the SATA 6.0 Gb/s interface deliver on this 18 TB drive?

The SATA 6.0 Gb/s link supports a sustained data transfer rate up to 270 MB/s on this 18 TB model.

Does the 3.5-inch form factor require a specific tray for HP Gen11 servers?

It ships pre-installed in a 3.5-inch HP Gen11 tray that also fits Gen10+ and Gen11 ProLiant servers.

How is the drive installed in a hot-swap bay and what step is often missed?

Slide the tray into the bay until the latch clicks; the step often missed is fully seating the latch to engage the hot-swap connector.

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