WD1000BBRTL - Western Digital Caviar WD1000BBRTL 100 GB 3.5 Internal Hard Drive - Retail - IDE Ultra ATA/100 (ATA-6) - 7200 rpm - 2 MB Buffer

Technical specifications:
- Capacity: 100 GB
- Form Factor: 3.5"
- Interface: IDE Ultra ATA/100 (ATA-6)
- Buffer Size: 2 MB
- Rotational Speed: 7200 RPM
- Average Latency: 4.2 ms
- Data Transfer Rate (internal): 100 MBps
- Data Transfer Rate (external): 100 MBps
- Seek Time: 8.9 ms (average)
- Track-to-Track Seek Time: 2 ms (average)
- Full Stroke Seek Time: 21 ms (average)
- Operating Temperature: 0°C to 60°C

Helpful notes:
- This hard drive is compatible with older computer systems that use IDE interfaces.
- The 7200 RPM speed provides faster data access and transfer rates.
- The 2 MB buffer helps to improve overall performance and reduce data loss.