Apple 661-5595 | 4GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SO-DIMM Dual Rank Memory Module for MacBook Pro 13

Here are the technical specs for the Apple 4GB DDR3-1066MHz Memory Module:

- Capacity: 4GB
- Memory Type: DDR3 SDRAM
- Memory Speed: 1066MHz (PC3-8500)
- Form Factor: 204-pin SO-DIMM
- CAS Latency: CL7
- Rank: Dual Rank
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
1. This memory module is compatible with the MacBook Pro 13-inch.
2. It increases the performance of your laptop by providing additional memory.
3. Installation of this module requires technical expertise and should be done by a professional.