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1.2 Device Specifications
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)
MHZ2320BJ MHZ2250BJ MHZ2200BJ MHZ2160BJ MHZ2120BJ MHZ2080BJ
Format Capacity (*1, *2) 320 GB 250 GB 200 GB 160 GB 120 GB 80 GB
Number of Sectors (User) 625,142,448 488,397,168 390,721,968 312,581,808 234,441,648 156,301,488
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 ATA8-ACS, Serial ATA Revision 2.6 Gen1i and Gen2i
Data Transfer Rate (*3)
• To/From Media
• To/From Host (*4)
118.4 MB/s Max.
1.5 Gbps (150 MB/s) (Gen1i) [1.5 Gbps model]
1.5 Gbps (150 MB/s) (Gen1i)/3.0 Gbps (300 MB/s) (Gen2i) [3.0 Gbps model]
Data Buffer Size (*5) 16 MB (16,777,216 bytes)
Physical Dimensions
(Height × Width × Depth)
9.5 mm × 100.0 mm × 70.0 mm (*6)
Weight 115 g (Max.) 107 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: 1.5 Gbps model does not support 3.0 Gbps.
*5: 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.
*6: The value of Depth (=100.0 mm) does not include PCBA (Printed Circuit Board Assembly).
For details, see Section 3.1.
C141-E280 1-5