Hitachi America Ltd. 21R4253 hard drive specifications

Hitachi TravelStar 4K40 20GB Hard Drive

The Hitachi Travelstar 4K40 series continues to redefine state-of-the-art storage for mobile computing. With industry-leading shock characteristics, efficient power consumption, outstanding acoustics, and a range of capacities, the Hitachi Travelstar 4K40 raises the standard for ruggedness. Designed to address the most demanding applications this drive offers customers a stable design platform for even the most advanced portable devices. The Travelstar 4K40 is based on an industry leading design that has been made even better. Simply put, it is hard drive artistry! Designed with mobile life styles in mind, the Travelstar 4K40 leverages proven technologies such as True Track Servo, which eases system integration, enhances hard disk drive reliability, and adds robustness against vibration and disk shift, Drive Fitness Test (DFT), Self-Moni�toring Analysis and Reporting Technology (S.M.A.R.T.) to enable a hard drive to predict impending catastrophic failure, and an adaptive control algorithm to help maintain high performance and fast seek times at high environmental temperatures.

Recommended software for Hitachi America Ltd. 21R4253 status and S.M.A.R.T. monitoring is ActiveSMART www.ariolic.com


Manufacturer
Hitachi America Ltd.

HDD Part Number
21R4253


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

General

Device Type
Hard drive - Internal hard drive

Width
2.8 in

Depth
3.9 in

Height
0.4 in

Weight
3.4 oz

Hard Drive

Form Factor

Capacity
20 GB

Interface Type
ATA-100

Buffer Size
2 MB

Features
Partial Response Maximum Likelihood (PRML)

Performance

Drive Transfer Rate
100 MBps

Internal Data Rate
46.3 MBps

Seek Time
12 ms (average) / 23 ms (max)

Track-to-Track Seek Time
2.5 ms

Average Latency
7.1 ms

Spindle Speed
4200 rpm

Reliability

Storage Hard Drive / Non-Recoverable Errors
1 per 10^13

Storage Controller

Type
None

Expansion / Connectivity

Interfaces
1 x ATA-100

Compatible Bays
1 x Internal - 2.5" x 1/8H

Miscellaneous

Microsoft Certifications
Works with Windows Vista

Environmental Parameters

Humidity Range Operating
8 - 90%

Shock Tolerance
300 g @ 2ms half-sine pulse (operating)

Vibration Tolerance
1 g @ 5-500 Hz (operating) / 3.01 g @ 5-500 Hz (non-operating)


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