Device Overview
1.2 Device Specifications
1.2.1 Specifications summary
Table 1.1 shows the specifications of the disk drives.
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| Table 1.1 | Specifications (1/2) |
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| MHW2120BS | MHW2100BS | MHW2080BS | MHW2060BS | MHW2040BS | |||
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Format Capacity (*1, *2) | 120 GB |
| 100 GB |
| 80 GB |
| 60 GB | 40 GB | |
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Number of Sectors (User) | 234,441,648 |
| 195,371,568 |
| 156,301,488 |
| 117,210,240 | 78,140,160 | |
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Bytes per Sector |
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| 512 bytes |
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Rotational Speed |
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| 5,400 rpm ± 1% |
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Average Latency |
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| 5.56 ms |
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Positioning time (read and seek) |
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• | Minimum |
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| 1.5 ms (typ.) |
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• | Average |
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| Read: 12 ms (typ.) |
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• | Maximum (Full) |
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| 22 ms (typ.) |
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Start time |
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| 4.0 sec (typ.) |
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Interface | Compliant with | ||||||||
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| Attachment 1.0a, SATA II Ext to SATA1.0a, |
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| SATA II Electrical Spec.1.0 |
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Data Transfer Rate (*2) |
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• | To/From Media |
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| 61.3MB/s Max. |
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• | To/From Host |
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| 1.5 Gbps (150 MB/s) |
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Data Buffer Size (*3) |
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| 8 MB (8,388,608 bytes) |
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Physical Dimensions |
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| 9.5 mm ⋅ 100.0 mm ⋅ 70.0 mm (*4) |
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(Height ⋅ Width ⋅ Depth) |
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Weight |
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| 101 g (Max.) |
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*1: Capacity under the LBA mode.
*2: 1 GB is equal to 1,000,000,000 bytes and 1 MB is equal to 1,000,000 bytes.
*3: 1 MB is equal to 1,048,576 bytes.
*4: The value of Depth (=100.0 mm) does not include PCBA (Printed Circuit Board Assembly). For details, see Section 3.1.
Table 1.1 lists the formatted capacity, number of logical cylinders, number of heads, and number of sectors of every model for which the CHS mode has been selected using the BIOS setup utility on the host.