Crucial CT813089 | 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 240-Pin DIMM Memory Module

Technical Specs:
- Capacity: 512MB
- Memory Type: DDR2 SDRAM
- Memory Speed: 667MHz (PC2-5300)
- CAS Latency: CL5
- Pin Count: 240-pin DIMM
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
1. This memory module is compatible with many older desktop computers.
2. Non-ECC memory is generally less expensive than ECC memory, but doesn't provide the same level of error correction.
3. Make sure to check your computer's motherboard specifications to ensure compatibility with this memory module.