Apple 661-5627 | 320GB 5400RPM SATA 2.5-Inch Hard Drive for MacBook A1342

Technical Specifications:
- Interface: SATA 3 Gb/s
- Form Factor: 2.5 inch
- Capacity: 320 GB
- Rotational Speed: 5400 RPM
- Cache: 8 MB
- Average Latency: 5.56 ms
- Seek Time: 12 ms (average)
- Data Transfer Rate: 300 MB/s (external)
- Shock Tolerance: 350 Gs for 2ms (operating), 1000 Gs for 1ms (non-operating)
- Acoustics: Idle (2.4 bels), Seek (2.6 bels)
- Power Consumption: 1.5 W (idle), 2.5 W (seek)
- Operating Temperature: 0°C to 60°C

Helpful Notes:
- This hard drive is compatible with MacBook A1342 models only.
- The SATA interface provides faster data transfer rates than the older PATA interface.
- The shock tolerance rating indicates the amount of force the hard drive can withstand without data loss or physical damage.