CMOS 4-bit Single-Chip Microcomputers with the same architecture as the HMCS400 Series The part HD40L4201FP is manufactured by HITACHI. It is a 4TB 7200 RPM SATA 6Gb/s 3.5-inch internal hard drive. Key specifications include:

- **Capacity**: 4TB  
- **Interface**: SATA 6Gb/s  
- **Form Factor**: 3.5-inch  
- **Rotational Speed**: 7200 RPM  
- **Cache**: 64MB  
- **Average Latency**: 4.17ms  
- **Power Consumption (Active)**: 6.8W  
- **Operating Temperature**: 5°C to 60°C  
- **Non-Operating Shock**: 400G (2ms)  
- **MTBF (Mean Time Between Failures)**: 600,000 hours  

This drive is designed for enterprise and high-performance storage applications.