Hard Disc Drive Interface

Item

 

 

Specification

 

 

 

 

 

 

 

Functionality

 

Model Name

Toshiba

 

Hitachi

Seagate

 

MK3025GAS

 

HTS424030M9AT00

2.75”W. 37”H ST94019A

 

 

 

 

 

Capacity (MB)

30000

 

30000

40000

 

 

 

 

 

Bytes per sector

512

 

512

512

 

 

 

 

 

Data heads

2

 

2

3

 

 

 

 

 

Data Disks

1

 

1

2

 

 

 

 

 

Spindle speed (RPM)

4200 RPM

 

4200 RPM

4200 RPM

 

 

 

 

 

Performance Specifications

 

 

 

 

 

 

Buffer size

2MB

 

2MB

2048KB

 

 

 

 

 

Interface

ATA-5

 

ATA-6

ATA-5

 

 

 

 

 

Media transfer rate (disk-

154.3~298.0Mbits/sec

 

370Mbits/sec

386Mbits/sec

buffer, Mbytes/s, max)

 

 

 

 

Interface transfer rate

100Mbytes/sec.

 

100 MB/Sec.

100 MB/Sec.

(host~buffer, Mbytes/

Ultra DMA mode-5

 

Ultra DMA mode-5

Ultra DMA mode-5

s,max)

 

 

 

 

 

 

 

 

 

DC Power Requirements

 

 

 

 

 

 

Voltage tolerance

5V(DC) +/-5%

 

5V(DC) +/- 5%

5V(DC) +/- 5%

 

 

 

 

 

Combo Drive Interface

Item

 

Specification

 

 

 

 

Vendor & model name

QSI SBW-242C

 

 

 

HLDS GCC-4243N

 

 

 

 

 

 

Diameter

12cm and 8cm

 

 

 

 

 

 

 

CD-ROM

 

DVD-ROM

 

 

 

 

Capacity

650<MB

 

4.7GB

 

Model1, 12cm disk

 

Model1, 12cm disk

 

CD-ROM

 

DVD-ROM

 

 

 

 

Transfer rate (KB/sec)

3.6 MB/s max (read)

 

11.08 MB/s max(read)

 

Write Speed : 3.6 MB/s (typical)

 

 

 

 

 

 

Access Time

CD-ROM

 

DVD-ROM

 

 

 

 

 

150 ms(typical)

 

150 ms(typical)

 

 

 

 

Voltage

DC+5V +/-5%

 

 

 

 

Applicable disc format

DVD: DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R, DVD-RW,

 

DVD+R,DVD+RW,DVD-RAM(optional),CD-DA, CD-ROM/XA, CD-i, Karaoke

 

CD, Video CD, Multi-session Photo CD, Enhanced CD, i-trax CD, CD extra,

 

CD Plus, CD-Text, CD-R and CD-RW Discs

 

 

 

 

Speed

8X DVD Disc Reading Speed

 

 

 

24X CD-R Disc Writing Speed

 

 

 

24X CD-RW Disc Writing Speed

 

 

 

24X CD-ROM Reading Speed

 

 

 

 

Interface

IDE/ATAPI interface (comliant to ATA /ATAPI-5)

 

 

 

 

Dimnsion

128.0x12.7x129.0

 

 

 

 

 

 

Weight

Aluminum : 190 gm

 

 

 

Metal : 235 gm

 

 

 

 

 

 

Chapter 1

23

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Image 30
Acer TravelMate 4050 manual MK3025GAS, 2MB, ATA-5 ATA-6, Hlds GCC-4243N