MHX2 BT Series Catalog
FEATURES
- Unsurpassed capacity of up to 300GB in a 2.5-inch form factor.
- Low power consumption: Read/ Write 1.6W.
- Low acoustic noise: Idle 2.1Bels.
- Suitable for multimedia laptop PCs and consumer electronics.
Specifications
FUNCTIONAL SPECIFICATIONS
| Sector Length | 512bytes | ||
|---|---|---|---|
| Rotational Speed | 4,200min-1 (4,200rpm) | ||
| Average Latency Time | 7.14ms (typical) | ||
| Seek Time | Minimum | 1.5ms (typical) | |
| Average | Read 12ms (typical), Write 14ms (typical) | ||
| Maximum | 22ms (typical) | ||
| Physical Dimensions |
Width | 70.0mm | |
| Depth | 100.0mm | ||
| Height | 12.5mm | ||
| Weight | Less than 135g | ||
| Interface | ATA-8, Serial ATA-2.5 (1.5Gb/s) | ||
| Power Consumption |
Spin Up | 4.5W (maximum) | |
| Read, Write | 1.6W (typical) | ||
| Idle | 0.50W (typical) [Slumber mode] | ||
| Standby | 0.13W (typical) | ||
| Sleep | 0.13W (typical) | ||
| Energy Efficiency (3) | MHX2250BT | 0.0020W/GB (e Rank) | |
| MHX2300BT | 0.0017W/GB (e Rank) | ||
| Data Transfer Rate | 150MB/s (maximum) | ||
| Buffer size (4) | 8MB | ||
| Acoustic Noise(1) |
2.1bels (Idle) |
||
ENVIRONMENTAL SPECIFICATIONS
| Ambient Temperature(5) |
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) |
| Non-operating | 49m/s2 (5.0G) | |
| Shock | Operating | 2,940m/s2 (300G) |
| Non-operating | 8,820m/s2 (900G) | |
| Power requirements |
+5V±5% |
|
Specifications are subject to change without notice.
- 1 bels:
- 1bels=10dB. Unit: sound pressure level.
- 2 GB:
- One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on the operating environment and formatting.
- 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 ºC:
- degree C.
MHX2 BT Series Configuration
| Model | Logical Cylinders |
Logical Heads |
Logical Sectors |
Capacity (1) (CHS mode) |
Sectors (LBA mode) |
Capacity (1) (LBA mode) |
|---|---|---|---|---|---|---|
| MHX2250BT | 16,383 | 16 | 63 | 8.45GB | 488,397,168 | 250GB |
| MHX2300BT | 16,383 | 16 | 63 | 8.45GB | 586,072,368 | 300GB |
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.

