Dell A17445479 | 1GB PC2-6400 DDR2-800MHz non-ECC Unbuffered CL6 200-Pin SO-DIMM Dual Rank Memory Module for Latitude D520

Technical Specs:
- Capacity: 1GB
- Memory Type: DDR2 SDRAM
- Memory Speed: 800MHz (PC2-6400)
- Form Factor: 200-pin SoDimm
- Error Correction: Non-ECC
- Buffered/Unbuffered: Unbuffered
- CAS Latency: CL6
- Rank: Dual Rank

Helpful Notes:
1. This memory module is compatible with the Dell Latitude D520 laptop.
2. Non-ECC memory is faster than ECC memory, but does not have error correction capabilities.
3. Dual rank memory modules have better performance than single rank modules, but may not be compatible with all systems.