MHZ2 BH Series Catalog
FEATURESPress Releases 
- Unsurpassed capacity of up to 320GB in a 2.5-inch form factor.
- Supporting Serial ATA 3.0Gb/s(2) interface.
- The world's lowest levels of power consumption.
Specifications
FUNCTIONAL SPECIFICATIONS
| Sector Length | 512bytes | ||
|---|---|---|---|
| Rotational Speed | 5,400min-1 (5,400rpm) | ||
| Average Latency Time | 5.56ms (typical) | ||
| Seek Time | Read | 12ms (typical) | |
| Write | 14ms (typical) | ||
| Physical Dimensions |
Width | 70.0mm | |
| Depth(9) | 100.0mm | ||
| Height | 9.5mm | ||
| Weight | 101g or less | ||
| Interface | SATA (3.0Gb/s) | ||
| Power Consumption |
Spin Up | 5.0W (maximum) | |
| Read, Write | 1.9W (7)(typical) | ||
| Idle | 0.60W (typical) [Slumber mode] | ||
| Standby | 0.13W (typical) [Slumber mode] | ||
| Sleep | 0.13W (typical) [Slumber mode] | ||
| Energy Efficiency (3) | MHZ2040BH | 0.015W/GB (d Rank) | |
| MHZ2080BH | 0.0075W/GB (d Rank) | ||
| MHZ2120BH | 0.0050W/GB (d Rank) | ||
| MHZ2160BH | 0.0038W/GB (d Rank) | ||
| MHZ2200BH | 0.0030W/GB (e Rank) | ||
| MHZ2250BH | 0.0024W/GB (e Rank) | ||
| MHZ2320BH | 0.0019W/GB (e Rank) | ||
| Data Transfer Rate | 300MB/s (maximum) | ||
| Buffer size (4) | 8MB | ||
| Acoustic Noise(5) (Idle) |
2.4bels (typical) |
||
ENVIRONMENTAL SPECIFICATIONS
| Ambient Temperature(6) |
Operating | 5ºC to 55ºC (ambient), 5ºC to 60ºC (disk enclosure surface) |
|---|---|---|
| Non-operating | -40ºC to 65ºC | |
| Gradient | 20ºC/h or less | |
| Relative Humidity |
Operating | 8% to 90% RH (non-condensing) |
| Non-operating | 5% to 95% RH (non-condensing) | |
| Maximum wet bulb | 29ºC (operating), 40ºC (non-operating) | |
| Vibration | Operating | 9.8m/s2 (1.0G) [5Hz to 500Hz] |
| Non-operating | 49m/s2 (5.0G) [5Hz to 500Hz] | |
| Shock | Operating | 3,185m/s2 (325G) [duration 2ms] |
| Non-operating | 8,820m/s2 (900G) [duration 1ms] | |
| Altitude | Operating | -300m to 3,000m |
| Non-operating | -300m to 12,000m | |
| Power requirements |
+5V±5% |
|
Specifications are subject to change without notice.
- 1 GB:
- One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on the operating environment and formatting.
- 2 Gb/s:
- Giga bit per second.
- 3 Rank:
- Energy efficiency based on the Law Concerning the Rational Use of Energy indicates the value obtained by dividing power consumption by the storage capacity (Japan only).
- 4 MB:
- One megabyte (MB) as 1,048,576 bytes for Hard Disk Drives' cache size.
Small portion of buffer memory is used for drive firmware control. - 5 bels:
- 1bels=10dB. Unit: sound pressure level.
- 6 ºC:
- degree C.
- 7 1.9W:
- Power consumption at SATA 1.5Gb/s.
- 8 MHZ2040BH:
- MHZ2040BH no longer being sold.
- 9 Depth:
- Excludes PCBA(Printed Circuit Board Assembly).
MHZ2 BH Series Configuration
| Model | Logical Cylinders |
Logical Heads |
Logical Sectors |
Capacity (1) (CHS mode) |
Sectors (LBA mode) |
Capacity (1) (LBA mode) |
|---|---|---|---|---|---|---|
| MHZ2040BH(2) | 16,383 | 16 | 63 | 8.45GB | 78,140,160 | 40GB |
| MHZ2080BH | 16,383 | 16 | 63 | 8.45GB | 156,301,488 | 80GB |
| MHZ2120BH | 16,383 | 16 | 63 | 8.45GB | 234,441,648 | 120GB |
| MHZ2160BH | 16,383 | 16 | 63 | 8.45GB | 312,581,808 | 160GB |
| MHZ2200BH | 16,383 | 16 | 63 | 8.45GB | 390,721,968 | 200GB |
| MHZ2250BH | 16,383 | 16 | 63 | 8.45GB | 488,397,168 | 250GB |
| MHZ2320BH | 16,383 | 16 | 63 | 8.45GB | 625,163,616 | 320GB |
Specifications are subject to change without notice.
- 1 GB:
- One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on the operating environment and formatting.
- 2 MHZ2040BH:
- MHZ2040BH no longer being sold.

