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Device Overview
1.2 Device Specifications
1.2.1 Specifications summary
Table 1.1 shows the specifications of the disk drives.
Table 1.1 Specifications (1/2)
MHW2160BJ MHW2120BJ MHW2080BJ
Format Capacity (*1, *2) 160 GB 120 GB 80 GB
Number of Sectors (User) 312, 581, 808 234,441,648 156,301,488
Bytes per Sector 512 bytes
Rotational Speed
7,200 rpm ± 1%
Average Latency 4.17 ms
Positioning time (read and seek)
• Minimum (Track-Track)
• Average
• Maximum (Full)
1.5 ms (typ.)
Read: 10.5 ms (typ.)
20.5 ms (typ.)
Start time 4.0 sec (typ.)
Interface Compliant with ATA-8 ACS AST, Serial ATA Revision 2.5
Gen1i and Gen2i
Data Transfer Rate (*3)
• To/From Media
• To/From Host
96.2 MB/s Max.
1.5 Gbps (150 MB/s) (Gen1i)
3.0 Gbps (300 MB/s) (Gen2i)
Data Buffer Size (*4) 8 MB (8,388,608 bytes)
Physical Dimensions
(Height × Width × Depth)
9.5 mm × 100.0 mm × 70.0 mm (*5)
Weight 116 g (Max.)
*1: Capacity under the LBA mode.
*2: One gigabyte (GB) = one billion bytes and One megabyte (MB) = one million bytes; accessible
capacity will be less and actual capacity depends on the operating environment and formatting.
*3: 1 GB is equal to 1,000,000,000 bytes and 1 MB is equal to 1,000,000 bytes.
*4: 1 MB is equal to 1,048,576 bytes; the actual buffer capacity for data transfer will be less.
Refer to the Section 6.4 of this manual.
*5: The value of Depth (=100.0 mm) does not include PCBA (Printed Circuit Board Assembly).
For details, see Section 3.1.
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