40R3388 - IBM 512MB DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDimm Dual Rank Memory Module

Technical Specifications:
- Memory Type: DDR2 SDRAM
- Capacity: 512MB
- Memory Speed: 667MHz (PC2-5300)
- Form Factor: SO-DIMM 200-pin
- Error Correction Code: Non-ECC
- CAS Latency: CL5
- Rank: Dual Rank
- Voltage: 1.8V
- Technology: Unbuffered
- Pins: 200
- Data Integrity Check: Non-parity
- Refresh Cycle Time: 7.8 ns

Helpful Notes:
1. This memory module is compatible with laptops and other devices that use DDR2 SO-DIMM memory.
2. Non-ECC memory is suitable for most consumer-grade applications, while ECC memory is usually used in servers and workstations.
3. Dual rank memory modules provide better performance than single rank modules, especially in applications that require large amounts of memory.