Western Digital Red 4Tb Sata6G NAS Hard Drive

Western Digital Red 4Tb Sata6G NAS Hard Drive

Product Specifications

Western Digital Red WD40EFRX , 4Tb/4000gb , Sata6G , 64mb cache , with intellipower ( 5400-7200rpm for management ) , designed for 24x7 business-critical applications with NASware optimized for RAID configured NAS system , with SCT ( SMART Command Transport ) , Intelligent error recovery + command completion to prevent data corruption in the event of power loss + noise and vibration control

Product Range Features (Actual Product Features May Differ - Zaps)

Advanced firmware technology built into every WD Red drive, NASware 2.0 enables seamless integration, robust data protection and optimal performance for systems operating in NAS and RAID environments.

Since your NAS system is always on, a highly reliable drive is essential. With a 35% MTBF improvement over standard desktop drives, the WD Red drive with NASware 2.0 is designed and manufactured to be a more reliable and robust solution.

Product Range Specifications (Actual Product Specifications May Differ - Zaps)

Product Specifications
	Interface	SATA 6 Gb/s

Performance Specifications
	Rotational Speed	IntelliPower *
	Buffer Size	64 MB

Transfer Rates
	Buffer To Host (Serial ATA)	6 Gb/s (Max)

Physical Specifications
	Formatted Capacity	4,000,787 MB
	Capacity	4 TB
	Form Factor	3.5 Inch
	User Sectors Per Drive	7,814,037,168

Performance Specifications
Target Performance
	MTBF	1,000,000 hours

Physical Dimensions
English
	Height	1.028 Inches
	Depth	5.787 Inches
	Width	4.00 Inches
	Weight	1.50 Pounds

Metric
	Height	26.1 mm
	Depth	147 mm
	Width	101.6 mm
	Weight	0.68 kg

Environmental Specifications
Shock
	Operating Shock (Read)	65G, 2 ms
	Non-operating Shock	250G, 2 ms

Acoustics
	Idle Mode	25 dBA (average)
	Seek Mode 0	28 dBA (average)

Temperature (English)
	Operating	32° F to 158° F
	Non-operating	-40° F to 158° F

Temperature (Metric)
	Operating	-0° C to 70° C
	Non-operating	-40° C to 70° C

Humidity
	Operating	5-95% RH non-condensing

Vibration
	Operating	0.004 g²/Hz (10 to 300 Hz)
	Non-operating	0.05 g²/Hz (10 to 300 Hz)

	Operating
	Linear	20-300 Hz, 0.75G (0 to peak)

Electrical Specifications
Current Requirements
	12 VDC
	Read/Write	250 mA
	Idle	230 mA
	Standby	7 mA
	Sleep	7 mA

	5 VDC
	Read/Write	280 mA
	Idle	260 mA
	Standby	105 mA
	Sleep	105 mA

	Power Dissipation
	Read/Write	4.50 Watts
	Idle	3.30 Watts
	Standby	0.40 Watts
	Sleep	0.40 Watts

Compatibility
Operating System
	Compatibility	Windows/Mac/Linux