SPECIFICATIONS – MK4018GAS (HDD2170)
General |
|
Model | MK4018GAS (HDD2170) |
Interface | |
Motor | Fluid Dynamic bearing (FDB) |
Functionality |
|
Formatted Capacity | 40.0078GB* |
Rotational Speed | 4,200rpm |
Avg. Rotational Latency | 7.14/ms |
4sec (typical) | |
Buffer | 2MB |
Seek Time (Average) | 12 |
Internal Transfer Rate | 156.9 ~ 290.4Mbits/sec (max) |
Host Transfer Rate | 100Mbytes/sec |
*Toshiba defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes.
Internal Drive Characteristics |
|
Number of Disks | 2 |
Number of Read/Write Heads | 4 |
Track Density (TPI) | 56.8K |
User Data Cylinders | 33,280 |
Logical Cylinders | 16,383 |
Logical Heads | 16 |
Logical Sectors/track | 63 |
Bytes per Sector | 512 |
Logical Blocks (LBA) | 78,140,160 |
Reliability |
|
Preventative maintenance | None |
Nonrecoverable read errors | 1 error per 1013 bits read |
Electrical |
|
Voltage | 5V ±5% |
Power Consumption |
|
Start | 2.7W typ |
Seek | 2.6W typ |
Read/Write | 2.3W typ |
Sleep | 0.1W typ |
Energy Consumption Efficiency | 0.078W/GB avg |
Shock | 1,862m/s2 (190G)(2msec) |
Operating | |
7,840m/s2 (800G)(1msec) |
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