
Western Digital
Western Digital WD40EZAZ 4TB Blue HDD PC Internal
Expand your PC storage with the Western Digital Blue 4TB internal hard drive featuring 256MB cache and quiet 5400 RPM operation.
$159.99*
Check availability
*Price sourced from Amazon.com. Last updated:Oct 23, 2026.Price and availability are subject to change — details.
Affiliate Disclosure: As an Amazon Associate, Studio Supplies earns from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Key Features
Reliable everyday computing
Western Digital quality and reliability
Free Acronis True Image WD Edition cloning software
1 Year Warranty
Zero Power on Hours
Specifications
Brand
Western Digital
Model
WD40EZAZ
Capacity
4TB
Interface
SATA 6 Gb/s
Spindle Speed
5400 RPM
Cache
256 MB
Form Factor
3.5"
Series
WD Blue
Warranty
1 Year
Frequently Asked Questions
What interface does the WD40EZAZ use to connect to a motherboard?
It uses a standard SATA 6 Gb/s interface, compatible with virtually all desktop motherboards and SATA controllers.
Is this drive suitable for use in a NAS or server environment?
The WD Blue line is designed for everyday desktop computing. For NAS or server use, Western Digital recommends their Red or Ultrastar product lines, which are rated for 24/7 operation.
Does the WD40EZAZ come with any bundled software?
Yes, it includes a free license for Acronis True Image WD Edition, which allows you to clone your existing drive to this one for easy migration.
What is the form factor of this drive?
It is a standard 3.5-inch internal hard drive, designed to fit in desktop PC drive bays.
Does this drive come factory-sealed with zero usage hours?
Yes, Western Digital states this drive ships with zero power-on hours, meaning it is new and unused.