Description:

Delivering lightning-fast performance and 24x7 reliability, Western Digital RE4 enterprise hard drives are ideal for servers, video surveillance, and other demanding write-intensive applications. These 7200 RPM SATA hard drives offer up to 2 TB capacity, 64 MB cache, and 4th generation vibration tolerance.

Features:

Massive Capacity, High Performance
With a combination of 64 MB cache, dual processors and dual stage actuation (2 TB only), WD RE4 drives deliver up to 2 TB's of cavernous capacity and lightning-fast performance in demanding server and storage applications.

Thermal Extended Burn-in Test
Each WD RE4 drive is put through extended burn-in testing with thermal cycling to ensure reliable operation.

High Reliability Features
Enhanced RAFF technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real time, resulting in a significant performance improvement in high vibration environments. Multi-axis shock sensor automatically detects the subtlest shock events and compensates to protect the data. RAID-specific, time-limited error recovery (TLER) prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.

StableTrac
The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations.

NoTouch Ramp Load Technology
The recording head never touches the disk media ensuring significantly less wear to the recording head and media, as well as better drive protection in transit.

IntelliSeek Technology
WD's IntelliSeek technology proactively calculates an optimum seek speed to eliminate hasty movement of the actuator, resulting in lower power consumption, noise and vibration.

Technical Information:

Performance Specifications
Rotational Speed	7,200 RPM (nominal)
Buffer Size	64 MB
Average Latency	4.20 ms (nominal)
Load/unload Cycles	600,000 minimum
Transfer Rates
Transfer Rate (Buffer To Disk)	128 MB/s (Max)
Physical Specifications
Formatted Capacity	1,000,204 MB
Capacity	1 TB
Interface	SATA 3 Gb/s
User Sectors Per Drive	1,953,525,168
Physical Dimensions
English
Height	1.028 Inches
Depth	5.787 Inches
Width	4.00 Inches
Weight	1.61 Pounds
Metric
Height	25.40 mm
Depth	147 mm
Width	101.6 mm
Weight	0.73 kg
Environmental Specifications
Shock
Operating Shock (Read)	65G, 2 ms
Non-operating Shock	300G, 2 ms
Acoustics
Idle Mode	28 dBA (average)
Seek Mode 0	29 dBA (average)
Seek Mode 3	25 dBA (average)
Temperature (English)
Operating	32° F to 140° F
Non-operating	-40° F to 158° F
Temperature (Metric)
Operating	5° C to 55° C
Non-operating	-40° C to 70° C
Electrical Specifications
Read/Write	7.90 Watts
Idle	5.90 Watts
Standby	0.70 Watts
Sleep	0.70 Watts

هارد اینترنال وسترن دیجیتال RE4 WD1003FBYX 1TB Enterprise

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