what's the difference between this and the 0F38755 model?

The difference is the power consumption. The 0F38755 uses about 6.1 watts at idle and the 0F38785 uses about 5.8 watts. In other words, the 0F38755 uses about 5% more power at idle. The 0F38755 also consumes about 1.5% less power then operating. These values are taken from the data sheet (dated July 2022) provided by WD on their website.

What is the interface type and speed of the WD Ultrastar DC HC560 hard drive?

The interface type of the WD Ultrastar DC HC560 hard drive is SATA, with a speed of 6.0Gb/s.

What is the storage capacity of the WD Ultrastar DC HC560 hard drive?

The storage capacity of the WD Ultrastar DC HC560 hard drive is 20TB.

WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black

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WD Ultrastar DC HC560 0F38785 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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7200 RPM 512MB Cache
SATA 6.0Gb/s
For Enterprise Storage
Retail or OEM packing may vary

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Overview

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Model
Brand	WD
Series	Ultrastar DC HC560
Model	0F38785

Performance
Interface	SATA 6.0Gb/s
Capacity	20TB
Recording Technology	CMR
RPM	7200 RPM
Cache	512MB
Average Latency	4.16ms

Features
Usage	For Enterprise Storage

Dimensions
Form Factor	3.5"
Height (maximum)	26.10mm
Width (maximum)	101.60mm
Length (maximum)	147.00mm

Additional Information
First Listed on Newegg	August 26, 2026

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Warranty, Returns, And Additional Information

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Item#: 9SIC7XKM5E2916

Meet Your Seller

Sponsored Products

WD Ultrastar DC HC560 0F38785 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Learn more about the Western Digital 0F38785

Customer Reviews of the Western Digital 0F38785

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info