SPECIFICATIONS –MK4008GAH (HDD1744) HARD DISK DRIVE
General |
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Model | MK4008GAH (HDD1744) |
Interface | |
Functionality |
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Formatted Capacity | 40.0GB* |
Rotational Speed | 4,200rpm |
Avg. Rotational Latency | 7.14/ms |
3.sec (typical) | |
Buffer | 2MB |
Seek Time |
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Average | 15 |
Maximum | 26 |
Internal Transfer Rate | 132.6 ~ 230.9 Mbits/sec (max) |
Host Transfer Rate |
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Ultra DMA mode | 100Mbytes/sec |
PIO Mode | 16.6Mbytes/sec |
Interleave Factor | 1:1 |
*Toshiba defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes.
Internal Drive Characteristics
Number of Disks | 2 |
Number of Data Heads | 4 |
Track Density (TPI) | 4,331 (110k) |
Logical Cylinders | 16,383 |
Logical Heads | 16 |
Logical Sectors/track | 63 |
Bytes per Sector | 512 |
Logical Blocks (LBA) | 78,126,048 |
Reliability |
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Preventative maintenance | None |
1 error per 1013 bits read | |
Electrical |
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Voltage | 3.3V 5% |
Power Consumption |
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Start | 1.8W typ |
Seek | 1.1W typ |
Read/Write | 1.0W typ |
Sleep | 0.07W typ |
Energy Consumption Efficiency | 0.0075W/GB avg |
Shock |
|
Operating | 4,900m/s2 (500G)(2msec) |
14,700m/s2 (1500G)(1msec) |
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