Apple 661-3866 | 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Dual Rank Memory Module for MacBook Pro 15

Here are the technical specifications and helpful notes for the Apple 512MB DDR2-667MHz Memory Module:

Technical Specs:
- Memory Type: DDR2 SDRAM
- Memory Speed: 667 MHz
- Memory Size: 512 MB
- Memory Technology: PC2-5300
- Form Factor: 200-pin SoDIMM
- Error Correction: Non-ECC
- CAS Latency: CL5
- Rank: Dual Rank

Helpful Notes:
1. This memory module is specifically designed for the MacBook Pro 15.
2. It has a 200-pin SoDIMM form factor, which is smaller than regular DIMMs and is used in laptops.
3. With a memory speed of 667 MHz, this module can help improve your laptop's performance by increasing its RAM.