3R-A3507-AA | HP 20GB 7200RPM IDE Ultra ATA/100 (ATA-6) 2MB Cache 3.5-inch Internal Hard Drive

Here are 12 technical specifications for the HP 20GB 7200RPM IDE Ultra ATA-100 3.5-inch Hard Drive:

1. Interface: IDE Ultra ATA-100
2. Capacity: 20GB
3. Form Factor: 3.5-inch
4. Rotational Speed: 7200 RPM
5. Buffer Size: 2MB
6. Average Seek Time: 8.9ms
7. Data Transfer Rate: 100MB/s
8. Shock Tolerance: 65g @ 2ms (operating), 250g @ 2ms (non-operating)
9. Acoustic (Idle): 3.0 bels
10. Power Consumption: 7.5 watts (operating), 1.5 watts (idle)
11. Operating Temperature: 5°C to 55°C
12. Operating Humidity: 5% to 95% non-condensing

Helpful Notes:
1. This hard drive is compatible with older computers that use IDE interfaces.
2. The 7200 RPM speed makes it faster than many other hard drives from the same era.
3. The 2MB buffer size is relatively small compared to modern hard drives, but was standard for its time.