| Travelstar C4K40 models |
Capacity (GB) |
RPM |
Interface |
|
| HTC424040F9AT00 |
|
| HTC424020F7AT00 |
|
| |
|
|
| Configuration |
|
|
| Interface |
ATA-5 |
|
| Capacity (GB) |
40/20 |
|
| Sector size (bytes) |
512 |
|
| Number of cylinders |
38,957 |
|
| Data heads |
4/2 |
|
| Disks |
2/1 |
|
| |
|
|
| Performance |
|
|
| Data buffer (MB)1 |
2 |
|
| Rotational speed (rpm) |
4,200 |
|
| Latency (average ms) |
7.1 |
|
| Max. interface transfer rate (MB/sec) |
100MB/sec Ultra DMA mode-5 |
| |
16.6MB/sec PIO mode-4 |
| |
Multiword DMA mode-2 |
| Seek time (ms) |
|
|
| 1 track (typical) |
3 |
|
| Average (typical) |
15 |
|
| Full stroke (typical) |
26 |
|
| Read technology |
ME2PRML, ID-less format |
|
| Internal transfer rate (MB/s) |
16.8-29.9 |
|
| Recording density (Max. Mbpm) |
29.3 |
|
| Track density (Mtpm) |
3.54 |
|
| |
|
|
| Reliability |
|
|
| Error rate (non-recoverable) |
< 1 per 1013 bits
transferred |
|
| Preventative maintenance |
Not required |
|
| |
|
|
| Power |
|
|
| Requirement |
+3.3VDC(±5%) |
+5VDC(±5%) |
| Seek (average) |
1.122 W |
1.7 W |
| Spin up (average) |
1.485 W |
2.25 W |
| Active idle (average) |
0.33W |
0.5W |
| Write (average) |
1.555 W |
1.75W |
| Sleep |
0.066W |
0.1W |
| Standby (average) |
0.099 W |
0.15W |
| |
|
|
| Physical size |
|
|
| Height (mm) |
9.5 (2 disk) / 7.0 (1 disk) |
| Width (mm) |
70 |
|
| Depth (mm) |
60 |
|
| Weight (g) |
62 (2 disk) / 47 (1 disk) |
|
| |
|
|
| Environmental characteristics |
|
|
| Operating |
|
|
| Ambient temperature |
5° to 55° C
(5V) / 5 °to 60 °C (3.3V) |
| Relative humidity (non-condensing) |
5% - 90% |
|
| Maximum wet bulb (non-condensing) |
29.4° C (84.2 °F) |
|
| Shock (half sine wave) |
300G/2ms |
|
| Vibration (sine wave) |
1G (22-500Hz) |
|
| |
|
|
| Non-operating |
|
|
| |
|
|
| Ambient temp |
-40° to 70° C
(-40° to 158° F) |
| Relative humidity (non-condensing) |
5% - 95% |
|
| Maximum wet bulb (non-condensing) |
40° C (104° F) |
|
| Shock (half sine wave) |
1,000G/1ms (2 disk) |
|
| |
1,200G/1ms (1 disk) |
|
| Vibration (sine wave) |
5G (22-500Hz) |
|
| |
|
|
| Acoustics (A-Weighted Sound
Power (Bels) |
|
| Idle (typical) |
2.0 (2 disk) |
|
| |
1.8 (1 disk) |
|
| Seek (typical) |
2.6 (2 disk) |
|
| |
2.5 (1 disk) |
|
