Apple 661-5861 | 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDIMM Dual Rank Memory Module

Technical Specs:
- Capacity: 4GB
- Memory Type: DDR3 SDRAM
- Memory Speed: 1333 MHz
- Form Factor: 204-pin SO-DIMM
- CAS Latency: CL9
- Error Correction Code: Non-ECC
- Rank: Dual Rank
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
1. This memory module is compatible with select Apple MacBook, MacBook Pro, and Mac Mini models.
2. Upgrading your Mac's memory can significantly improve its performance, especially when running multiple applications simultaneously.
3. Make sure to check your Mac's maximum supported memory capacity before purchasing.