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Western Digital HDD WD40EFRX 4TB SATA III 5400RPM 64MB 3.5inch WD Red

DigitalWestern Digital
Availability:

139 in stock


$169.49

139 in stock

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MPN# WD40EFRX
UPC# 718037810058

Western Digital HDD WD40EFRX 4TB SATA III 5400RPM 64MB 3.5inch WD Red

WD Red is designed specifically for small NAS systems that have 1 to 5 drive bays. The drives are designed and extensively tested for compatibility in the unique 24×7 operating environment and for the demanding system requirements of home and small office NAS.

Expanded Solutions

Our formula of success has led growth of WD Red into higher capacities and expansion into new 2.5-inch solutions. We now offer a broader, more comprehensive portfolio of NAS hard drives for our customers. It is not just about NAS drives, it is REDvolutionary.

Next generation experience


Every component, line of code, and product decision was built on our passion and determination to deliver the best NAS experience. The next generation of WD Red hard drives delivers on this promise with massive capacity and NASware 2.0, which further improves drive reliability and protects your data in the event of a power loss or disruption.

Exclusive NASware 2.0 technology


Our exclusive technology, NASware 2.0, makes WD Red thrive in the demanding small-NAS environment. By adding WD Red to your NAS system, not only is everything more efficient and reliable, you can better protect your data investment.

Experienced in NAS


In all of our cultures around the world, first impressions are what leave a mark. With superior technology that is driven to impress, WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.* That means when you buy a NAS enclosure, you can trust that WD Red will be the most compatible drive available. Our pride is in our product and our vision is shared with our customers

Interface
SATA 6Gb/s
Performance Specifications
Rotational Speed: IntelliPower
Buffer Size: 64MB
Transfer Rates
Buffer to Host (Serial ATA): 6Gb/s (Max)
Target Performances
MTBF: 1,000,000 Hours
Environmental Specifications (Shock)
Operating Shock (Read): 65G, 2ms
Non-Operating Shock: 250G, 2ms
Environmental Specifications (Acoustics)
Idle Mode: 25 dBA (Average)
Seek Mode: 28dBA (Average)
Temperature
Operating: 32 F to 158 F (-0 C to 70C)
Non-Operating: -40 F to 158 F (-40 C to 70 C)
Humidity
Operating: 5-95% RH Non-Condensing
Vibration
Operating: 0.004 g/Hz (10 to 300 Hz)
Non-Operating: 0.05 g/Hz (10 to 300 Hz)
Operating
Linear: 20-300 Hz, 0.75G (0 to peak)
Electrical Specifications (Current Requirements)
12V DC:
– Read/Write: 250mA / Idle: 230mA / Standby: 7mA / Sleep: 7mA
5V DC:
– Read/Write: 280mA / Idle: 260mA / Standby: 105mA / Sleep: 105mA
Power Dissipation:
– Read/Write: 4.50 Watts
Idle: 3.30 Watts
Standby: 0.40 Watts
Sleep: 0.40 Watts
Compatibility
Operating System: Windows/Mac
Item Dimension (L”xW”xH”)
5.78 x 4 x 1.03

Weight
0.97 lb

Warranty Information
3 Years

Brand

Western Digital

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