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Silver rectangular 3.5 inch internal hard drive with circuit board visible on underside

Western Digital

Western Digital Gold WD181KRYZ 18 TB 3.5" SATA Internal Hard Drive

SKU CH-V6KK-FPPF7

High-capacity 18 TB internal hard drive with 7200 RPM speed and 512 MB cache for desktop storage

  • 18 TB capacity for massive data storage
  • 269 MB/s read speed enables fast file access
  • 7200 RPM rotation delivers responsive performance
  • 512 MB cache improves burst throughput
  • SATA III interface fits standard desktop bays

18 TB enterprise hard drive

The Western Digital Gold WD181KRYZ is an internal 3.5 inch drive with an 18 TB capacity. It connects through a SATA interface and spins at 7200 RPM with a 512 MB cache. The drive delivers a sustained read speed of 269 MB/s. It is built for continuous operation in desktop workstations and servers.

Suits high-capacity bulk storage

This drive fits users who need a single large volume for archives, backups or media libraries in a system with a free 3.5 inch bay and SATA port. It is not suited for laptops or small-form-factor PCs that only accept 2.5 inch drives. Buyers who want faster random access or silent solid-state performance should look at solid state alternatives.

269 MB/s sequential read speed

The quoted 269 MB/s read rate is the headline throughput figure for large sequential workloads such as video ingest or disk imaging. Random I/O performance will be lower because the platters rotate at 7200 RPM. Verify that your controller and cabling support SATA III to reach the rated transfer rate.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $987.99
Pricier than about 91% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much noise and heat does the 7200 RPM 18 TB drive produce during all-day operation?

The 3.5" WD Gold HDD spins at 7200 RPM with a 512 MB cache; typical acoustic and thermal output matches other enterprise-class 7200 RPM drives of this capacity.

What host connection and power cables are required to run this SATA III internal drive?

A SATA III data cable from the motherboard or controller and a SATA power connector from the PSU are needed; the drive fits a standard 3.5" bay.

Will this 18 TB SATA III HDD work in a system that only has older SATA II ports?

Yes, the SATA III interface is backward compatible with SATA II ports, so the drive will operate at the slower 3 Gb/s link speed.

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