Crucial CT51264AC667.16DA | 4GB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDimm Memory Module

Technical Specs:
- Capacity: 4GB
- Memory Type: DDR2 SDRAM
- Memory Speed: 667 MHz
- Form Factor: 200-pin SO-DIMM
- CAS Latency: CL5
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
- This memory module is compatible with laptops and other devices that use DDR2 SO-DIMM memory.
- Non-ECC memory is faster and less expensive than ECC memory, but does not provide error correction.
- The CL5 latency rating means that this memory module has a delay of 5 clock cycles before data is transferred.