IBM 40G3175 | 30MB Cache PCmcia Internal Hard Drive for ThinkPad

Technical Specifications:
- Interface: SCSI-2
- Form Factor: 3.5"
- Spindle Speed: 4500 RPM
- Buffer Size: 256 KB
- Average Seek Time: 14 ms
- Maximum External Transfer Rate: 10 MB/s
- Maximum Internal Transfer Rate: 4.5 MB/s
- Power Consumption: 13 Watts (operating), 8 Watts (idle)
- Operating Temperature: 5°C to 55°C
- Non-Operating Temperature: -40°C to 65°C
- Shock Tolerance: 25 Gs (operating), 150 Gs (non-operating)
- Acoustic Noise: 40 dBA (operating), 35 dBA (idle)

Helpful Notes:
- This hard drive was released in 1992 and is now considered obsolete.
- It was commonly used in early IBM PS/2 computers and other desktop systems of the time.
- The small storage capacity of 30MB may seem minuscule by today's standards, but it was a significant upgrade from the even smaller hard drives of the early 1990s.