Apple 661-4233 | 1GB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDIMM Dual Rank Memory Module for MacBook Pro

Technical Specs:
- Capacity: 1GB
- Technology: DDR2 SDRAM
- Speed: 667MHz (PC2-5300)
- Latency Timings: CL5
- Data Integrity Check: Non-ECC
- Form Factor: SO-DIMM 200-pin
- Rank: Dual Rank

Helpful Notes:
1. This memory module is specifically designed for MacBook Pro models.
2. Non-ECC memory is faster and cheaper than ECC memory, but it does not detect and correct errors.
3. Dual Rank memory modules provide better performance than Single Rank modules, especially when running multiple applications simultaneously.