Western Digital Corp. WD740ADFD/20PK hard drive specifications

WD Raptor WD740ADFD - hard drive - 74 GB - SATA-150

Designed and manufactured to enterprise-class standards to provide enterprise reliability in high duty cycle environments. With 1.2 million hours MTBF, WD Raptor drives have the highest available reliability rating on a high capacity drive. With a next-generation SATA interface, 1.5 Gb/s data transfer rate, native command queuing (NCQ), and 16 MB cache, these drives deliver optimum performance. RAID-specific, time-limited error recovery (TLER), a feature unique to WD, prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives. Rotary Acceleration Feed Forward (RAFF) optimizes operation and performance when the drives are used in vibration-prone, multidrive systems such as rack-mounted servers or network storage. WD Raptor features FlexPower connector technology that accepts power from either industry standard or new SATA power supplies.

Recommended software for Western Digital Corp. WD740ADFD/20PK status and S.M.A.R.T. monitoring is ActiveSMART www.ariolic.com


Manufacturer
Western Digital Corp.

HDD Part Number
WD740ADFD/20PK


Hard drive health monitoring software
ActiveSMART by Ariolic Software. Click to download ActiveSMART

General

Packaged Quantity
20

Device Type
Hard drive - Internal hard drive

Width
4 in

Depth
5.8 in

Height
1 in

Weight
1.8 lbs

Hard Drive

Form Factor

Capacity
74 GB

Interface Type
Serial ATA-150

Buffer Size
16 MB

Features
FlexPower, Time-Limited Error Recovery (TLER), Rotary Acceleration Feed Forward (RAFF)

Performance

Drive Transfer Rate
150 MBps

Seek Time
4.6 ms (average) / 10.2 ms (max)

Track-to-Track Seek Time
0.4 ms

Average Latency
2.99 ms

Spindle Speed
10000 rpm

Reliability

Mean time before failure
1,200,000 hour(s)

Storage Hard Drive / Non-Recoverable Errors
1 per 10^15

Start / Stop Cycles
20,000

Storage Controller

Type
None

Expansion / Connectivity

Interfaces
1 x Serial ATA-150 - 7 pin Serial ATA

Compatible Bays
1 x Internal - 3.5" x 1/3H

Compatible Slots
x None

Manufacturer Warranty

Service & Support
5 years warranty

Service & Support Details
Limited warranty - 5 years

Environmental Parameters

Min Operating Temperature
41 �F

Max Operating Temperature
131 �F

Humidity Range Operating
5 - 95%

Vibration Tolerance
3 g @ 10-300 Hz (operating) / 5 g @ 10-300 Hz (non-operating)

Sound Emission
39 dBA


0.0757