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Western Digital WD40EFZX WD Red Plus 4TB SATA 6Gb/s 3.5" HDD

Western Digital WD40EFZX WD Red Plus 4TB SATA 6Gb/s 3.5" HDD

Q: How much cache does this drive have?

UPDATE: Just checked with WD website and it seems that they have updated these drives. The more recent version of the Red Plus is the WD40EFZX model which does indeed have 128mb cache. The older WD40EFRX had only 16mb of cache. Both drives use CMR technology (not the crap SMR technology) so both are equally good and equally suitable for NAS drive. Just check that the model number is WD40EFZX and you'll be fine. Oh and don't get hung up about the cache if you're planning to use these drives in a NAS because you're unlikely to see any real increase in performance.

Q: Are these any good for storing & streaming 4k movies for plex ?

That’s exactly what I use it for in a Qnap NAS. Works great.

Product ID: 289884902

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Details

Digital storage capacity
4 TB
Hard disk interface
Serial ATA-600
Connectivity technology
SATA
Brand
Western
Special feature
Portable
Hard disk form factor
3.5 Inches

⚡SATA 6Gb/s interface speed

💾4TB storage capacity

🛠️NASware 3.0 tech for seamless NAS integration

Description

💼 Elevate your NAS game with WD Red Plus — where performance meets peace of mind.

TRUSTED DURABILITY - Built for 8-bay NAS systems with a proven track record for reliability and longevity.
MASSIVE 4 TB CAPACITY - Store and stream your entire digital life without compromise.
EFFORTLESS RAID REBUILDS - Designed to handle intensive workloads and quick recovery in RAID environments.
OPTIMIZED FOR NAS SYSTEMS - NASware 3.0 ensures flawless compatibility and peak performance in multi-drive setups.
SILENT STABLE OPERATION - Dual-plane balance control minimizes vibration and noise for a smooth, reliable experience.

The Western Digital WD40EFZX WD Red Plus 4TB HDD is a 3.5-inch mechanical hard drive designed specifically for small to medium NAS environments. Featuring 4TB capacity, SATA 6Gb/s interface, and advanced NASware 3.0 technology, it delivers optimized compatibility, enhanced reliability, and quiet operation. Ideal for SOHO and business users, it supports up to 8-bay NAS systems and RAID configurations, ensuring seamless data storage, sharing, and backup with reduced vibration and noise.

Specifications

Brand	Western Digital
Product Dimensions	14.7 x 10.16 x 2.61 cm; 600 g
Item model number	WD40EFZX
Manufacturer	Western Digital
Series	WD Red™ Plus NAS Hard Drive 3.5"
Colour	Red
Form Factor	3.5-inch
RAM Size	4 TB
Hard Drive Size	4 TB
Hard Disk Description	Mechanical Hard Disk
Hard Drive Interface	Serial ATA-600
Hard Disk Rotational Speed	5400 RPM
Number of USB 2.0 Ports	1
Number of USB 3.0 Ports	1
Wattage	50
Optical Drive Type	BD-R
Hardware Platform	Mac, PC
Are Batteries Included	No
Lithium Battery Energy Content	2.6 British Thermal Units (BTUs)
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	0.5 milligrams
Number Of Lithium Ion Cells	7
Number of Lithium Metal Cells	7
Item Weight	600 g
Guaranteed software updates until	unknown

Have a Question? See What Others Asked

How much cache does this drive have?

Where did you get the new drives since they have been out of production for several years? are these repaired drives?

Are these any good for storing & streaming 4k movies for plex ?

Has this 128MB cache or not? Details are lacking, can't purchase on a probability!!

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