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| IBM Travelstar 40GN IC25N020ATCS04 20GB Laptop Hard Drive | |
| Features: | |
| Formatted Capacity | 20 GB |
| Rotational Speed | 4200RPM |
| Drive Interfaces | Ultra EIDE (ATA/100) |
| Drive Connector Type | 44-pin IDE Internal |
| Average Seek Time | 12ms |
| Form Factor | 2.5 Internal (9.5mm) |
| Cache Memory | 2 MB |
| Benefits: | |
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| Specifications: | |
| Data heads | 2 |
| Disks | 1 |
| Recording zones | 16 |
| Sector size (bytes) | 512 |
| Max. areal density (Gbits/sq. inch) | 34 |
| Data buffer (MB) | 2* *Up to 280KB out of 2048KB used for firmware |
| Latency (average ms) | 7.1 |
| Error rate (nonrecoverable) | < 1 per 1.013 bits transferred |
| Max. Media Transfer Rate (Mbits/sec) | 245 |
| Max.Interface Transfer Rate (MB/sec) | 100 MB/sec Ultra-DMA mode-5 |
| Seek time (ms) | Average (typical): 12 Track to Track (typical): 2.5 Full stroke (typical): 23 |
| Load/unload Cycle | 300,000 |
| DFT (Drive Fitness Test) | Enabled |
| Power | Requirement: +5 VDC(+/-5%) Dissipation (typical) Startup (max peak): 4.7W Seek (average): 2.3W Read (average): 2.0W Write (average): 2.1W Performance idle (average): 1.85W Active idle (average): .85W Low power idle (average): 0.65W Standby (average): 0.25W Sleep: 0.1W Power consumption efficiency (watts/GB): 0.033 |
| Dimensions | Height(mm): 9.5 Width(mm): 70.0 Depth(mm): 100.0 Weight(g): 95 |
| Ambient Temperature | Operating: 5o-55o |
| Shock | Operating: 200Gs (ms) Nonoperating: 800Gs/1ms |
| Accoustics | Idle (typical): 2.1 Bels Operating (typical): 2.7 Bels |
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