Apple 661-5080 | 320GB 5400RPM SATA 1.5Gb/s 2.5-inch Hard Drive for MacBook A1278

Here are the technical specifications for the product:

1. Storage capacity: 320GB
2. Interface: SATA 1.5Gb/s
3. Form factor: 2.5-inch
4. Rotational speed: 5400 RPM
5. Cache size: 8MB
6. Average latency: 5.56ms
7. Average seek time: 12ms
8. Data transfer rate: 150MB/s
9. Shock tolerance: 350G
10. Operating temperature: 0°C to 60°C
11. Non-operating temperature: -40°C to 70°C
12. Power consumption: 2.5W (active), 0.18W (idle)

Helpful notes:
1. This hard drive is compatible with the MacBook A1278 model.
2. The 8MB cache size helps to improve overall performance and speed.
3. The shock tolerance of 350G makes this hard drive more durable and resistant to damage from drops or impacts.