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. 
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

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.

WD Blue internal hard drives deliver solid reliability for office and web applications and are perfect for extra storage for desktop PCs and in-office applications.

Enhance your desktop with this WD Blue Mainstream Internal Serial ATA (SATA) Hard Drive, which features a 64MB cache buffer for rapid processing speed. Ideal for use as primary drives in desktop PCs and for office applications. With a range of capacities to store photos, movies and more, there’s a drive that’s just right for you.

Upgrade your computer with this Seagate BarraCuda internal HDD. The 4TB of total capacity provide optimum space for storing large files, while the data transfer speed of up to 190MB/sec. combined with a 256MB cache memory buffer delivers blazing-fast file transfers. This Seagate BarraCuda internal HDD has Self-Encrypting Drive technology and an Instant Secure Erase feature for efficient data removal and supports SATA III connectivity. Seagate equivalent and backward compatible models: ST4000DM004, ST4000DMZ04.
| Pros for WD - Blue 4TB PC Internal Hard Drive for Desktops | |||
|---|---|---|---|
| Storage, Ease of use, Price, Reliability, Installation | Storage, Speed, Overall Performance | Storage, Performance, Ease of use, Price, Speed | Storage, Performance, Price, Ease of use, Speed |
| Cons for WD - Blue 4TB PC Internal Hard Drive for Desktops | |||
| SATA Cable, Warranty | There were no cons for this product— | SATA Cable, Software | Noise |
Customers are delighted by the Blue 4TB PC Internal Hard Drive's large storage capacity, reliability, and ease of installation. Many appreciate its affordable price and quiet operation. A small number of customers noted the lack of an included SATA cable and expressed some concerns about the warranty length. Overall, the positive feedback on performance and value outweighs these minor drawbacks.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Best HDD long working i recommend to buy everyone best part this hard drive is really clean and not noise coming out smoothly run and format
Posted by SHEHYARA
Usually Getting around to buying hard drives is quite the unreaosnable gamble as its been inconsitent with the model numbers. Fortunately I got exactly what I was after: a 4TB CMR hard drive that ends with “EZAX”. As for the general review, its a simple plug-n-play setup for devices that can hold 3.5” hard drives. Included in the box are 4 mounting screws, as wall as general product documantion and warranty information.
Posted by Chris
this is my 2nd blue WD purchased ,, since bestbuy put them on sale again ,, i wonder if these hdd are will be phased out in favor of ssd is the reason .. so getting some extra on sale seems logical to me .. also,, i been using the free acronis backup software making backups .. finally without having to buy it .. i used acronis to create a backups on the 1st blue ..and then created a bootable clone on the 2nd blue .. i also worked on creating a bootable clone on a usb WD passport drive too but not tested a boot with it yet .. however when the blue booted ,,, it took about 4 to 5 minutes where the motherboard ssd boots takes just a minute .. another thing which i liked was the boot ssd was 2TB and had 2 partitions of 1TB ,, and when the blue 4TB bootable was created ,, the acronis created 2 partitions of 2TB each .. .which make me even more happier .. my eventual plan is to use the bootable blue to now make a bootable 4TB ssd ,, and keep the 2TB ssd and boot blue as backup out of the desktop ..
Posted by Controler