WD - Blue 4TB PC Internal Hard Drive for Desktops
- Key Specs
- Storage Capacity: 4000 gigabytes (Measured in megabytes (MB), gigabytes (GB) and terabytes (TB), this is the amount available for storing files, music, movies, photos and more. The total includes the capacity of the hard disk drive and solid state drive if both are included on the computer.)
- Storage Drive Type: HDD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
- Rotational Speed: 5400 revolutions per minute (The rate at which the hard drive spins its platters. The higher the rotational speed, the faster the drive can read and write data.)
- Maximum Read Speed: 175 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
- Maximum Write Speed: 175 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
- Form Factor: 3.5 in.
- Interface(s): SATA (Refers to the types of connections that devices use to interact and communicate with each other.)
- General
- Brand: WD
- Model Number: WD40EZAX
- Product Name: Blue 4TB PC Internal Hard Drive for Desktops
- Capacity
- Storage Capacity: 4000 gigabytes (Measured in megabytes (MB), gigabytes (GB) and terabytes (TB), this is the amount available for storing files, music, movies, photos and more. The total includes the capacity of the hard disk drive and solid state drive if both are included on the computer.)
- Performance
- Storage Drive Type: HDD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
- Rotational Speed: 5400 revolutions per minute (The rate at which the hard drive spins its platters. The higher the rotational speed, the faster the drive can read and write data.)
- Maximum Read Speed: 175 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
- Maximum Write Speed: 175 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
- Compatibility
- Internal Or External: Internal
- Product Compatibility: Desktop computers
- Form Factor: 3.5 in.
- Interface(s): SATA (Refers to the types of connections that devices use to interact and communicate with each other.)
- Bare Drive: true (Drive is sold without any pre-installed software.)
- Minimum System Requirements: PC: Windows 10, 8.1, or 7; macOS High Sierra, Sierra El Capitan
- Features
- Data Encryption: false
- Usage: Everyday computing, Backup
- Lighting Type: None
- Memory
- Cache Buffer Size: 64 megabytes (The data capacity of the cache buffer (or disk buffer) that acts as temporary memory for the drive. The cache holds the most recently and frequently used data to save the drive the extra step of pulling it from permanent storage every time it's needed, which helps increase the drive's overall speed.)
- Dimensions
- Product Height: 1.06 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 4 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 20.16 ounces (The out of box weight of the item.)
- Included
- Included Software: Acronis True Image WD Edition
- Warranty
- Warranty - Parts: 2 years limited
- Warranty - Labor: 2 years limited
- Other
- UPC: 718037898605
Store edited photos, videos, and games on this 3.5-inch Western Digital hard drive. It has dynamic cache for optimizing allocation between reads and writes, and there's plenty of space to store files with its 4TB capacity. 
- 4TB storage capacity: Provides plenty of space for documents, photos, music, videos and other data.
- Tested for Compatibility: Tested on hundreds of systems, inlcuding Mac and PC, and a multitude of platforms in our F.I.T. Lab to give customers confidence that our drives will work in their systems.
- Low Power Consumption: State-of-the-art seeking algorithms and advanced power management features help ensure low power consumption.
- NoTouch Ramp Load technology: The recording head never touches the disk surface ensuring significantly less wear to the recording head and data as well as better drive protection in transit.
- Acronis True Image WD Edition cloning software: This software enables you to copy all your data to a new drive so you don’t have to reinstall your operating system.
Whats Included
- WD Blue everyday 4TB Internal SATA Hard Drive for Desktop
- Mounting screws
- Quick Install Guide
Q: What is the cache buffer size of this hard drive?
A: This hard drive has a cache buffer size of 64 megabytes.
Q: What is the storage capacity of this Western Digital hard drive?
A: This Western Digital hard drive has a storage capacity of 4TB.
Q: Does this hard drive come with any software?
A: Yes, this hard drive comes with Acronis True Image WD Edition cloning software.
Q: What is the maximum read speed of this hard drive?
A: The maximum read speed of this hard drive is 175 megabytes per second.
Q: How is this hard drive protected from damage during transit?
A: This hard drive uses NoTouch Ramp Load technology where the recording head never touches the disk surface, which provides better drive protection in transit.
A: the 4th picture says the model on this is wd40ezaz. on western digital's site, it shows this: CMR: WD5000AZLX, WD5000AZRZ, WD10EZEX, WD10EZRZ, WD20EZRZ, WD30EZRZ, WD40EZRZ SMR: WD20EZAZ, WD20EZBX, WD30EZAZ, WD40EZAZ, WD60EZAZ unless the picture is wrong, this is an SMR drive.
A: MTBFs vary between manufacturers AND the characteristic usage class of the drive. Manufacturers like to claim this time to far exceed 11 years but reality shows a fairly high variance between manufacturers and the “class” of drive. In this case the WD 4TB “Desktop” drive in avg daily “consumer grade” usage, should last 7 years or more easily, even in 24/7 powered up state as I run such systems. The Western Digital quality is fairly high and you should see a low 2-3% overall annual failure rate across their quantity of shipped units. When you need higher grade performance, look to a “NAS” class drive . . . remember the old saying of you “get what you pay for” is a good rule of thumb. Hope it’s helps.
Q: Is this hard drive capable for my ps4?
A: I think as long as you have the data bank adapter youbshould be able to use it on a ps4
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