| Travelstar 4K40 model summary |
Capacity (GB) |
RPM |
Interface |
|
| HTS424040M9AT00 |
|
| HTS424030M9AT00 |
|
| HTS424020M9AT00 |
|
| |
|
| |
|
| Configuration |
|
| Interface |
ATA-6 |
| Capacity (GB)1 |
40/30/20 |
| Sector size (bytes) |
512 |
| Recording zones |
24 |
| Data heads (physical) |
2/2/1 |
| Data disks |
1 |
| Max. areal density (Gbits/sq.inch) |
70 |
| |
|
| Performance |
|
| Data buffer (MB) |
2 |
| Rotational speed (RPM) |
4,200 |
| Latency average (ms) |
7.1 |
| Media transfer rate (Mbits/sec, max) |
370 |
| Interface transfer rate (MB/sec, max) |
100MB/sec Ultra DMA mode-5 |
| PIO |
16.6MB/sec PIO mode-4 |
| Seek time (read, typical) |
|
| Average (ms) |
12 |
| Track to track (ms) |
2.5 |
| Full track (ms) |
23 |
| |
|
| Reliability |
|
| Error rate (non-recoverable) |
< 1 per 1013 bits transferred |
| Load/Unload cycle |
600,000 |
| |
|
| Power |
|
| Requirement |
+5VDC(±5%) |
| Dissipation |
|
| Startup current (peak, max.) |
4.7 W |
| Seek (avg.) |
2.3 W |
| Read (avg.) |
2.0 W |
| Write (avg.) |
2.1 W |
| Performance idle (avg.) |
1.85 W |
| Active idle (avg.) |
0.85 W |
| Low power idle (avg.) |
0.65 W |
| Standby (avg.) |
0.25 W |
| Sleep |
0.1 W |
| Power consump. efficiency index (W/GB) |
0.016/0.022/0.033 |
| |
|
| Physical size |
|
| Height (mm) |
9.5 |
| Width (mm) |
70 |
| Depth (mm) |
100 |
| Weight - typical (g) |
95 |
| |
|
| Environmental characteristics |
|
| |
|
| Operating |
|
| Ambient temperature |
5° to 55° C |
| Relative humidity (non-condensing) |
8% - 90% |
| Maximum wet bulb (non-condensing) |
29.4° C |
| Shock (half sine wave) |
300G/2ms |
| Vibration (random (RMS)) |
0.67 G (5 - 500 Hz) |
| Swept sine |
1 G 0 - P (5 - 500 Hz) |
| |
|
| Non-operating |
|
| Ambient temp |
-40° to 65 ° C |
| Relative humidity (non-condensing) |
5% - 95% |
| Maximum wet bulb (non-condensing) |
40° C |
| Shock (half sine wave) |
1000G/1ms |
| Vibration (random (RMS)) |
3.01 G (5 - 500 Hz) |
| |
|
| Acoustics (A-Weighted Sound Power
(Bels)) |
|
| Idle (typ.) |
2.1 |
| Op (typ.) |
2.4 |
| Idle (max.) |
2.4 |
| Op (max.) |
2.6 |
