Dell A17547082 | 1GB PC2-6400 DDR2-800MHz non-ECC Unbuffered CL6 200-Pin SO-DIMM Dual Rank Memory Module for Inspiron 1521

Technical Specs:
- Capacity: 1GB
- Memory Type: DDR2 SDRAM
- Speed: 800MHz
- Form Factor: 200-pin SO-DIMM
- Error Correction: Non-ECC
- CAS Latency: CL6
- Rank: Dual Rank
- Voltage: 1.8V

Helpful Notes:
- This memory module is compatible with the Dell Inspiron 1521 laptop.
- Non-ECC memory is faster and less expensive than ECC memory, but it does not provide error correction.
- Upgrading your laptop's memory can significantly improve its performance and multitasking capabilities.