Dell A211538290 | 512MB PC2-5300 DDR2-667MHz non-ECC Unbuffered CL5 200-Pin SO-DIMM Dual Rank Memory Module for Inspiron 1501

Technical specs:
- Capacity: 512MB
- Memory Type: DDR2 SDRAM
- Memory Speed: 667 MHz
- Form Factor: 200-pin SO-DIMM
- CAS Latency: CL5
- Error Correction Code: Non-ECC
- Rank: Dual Rank

Helpful notes:
1. This memory module is specifically designed for the Dell Inspiron 1501.
2. Non-ECC means that this memory is not capable of detecting and correcting common types of internal data corruption.
3. Dual Rank memory modules have two sets of memory chips that can be accessed independently, which can improve memory performance in some cases.