Crucial CT640655 | 512MB Kit (2 X 256MB) DDR-400MHz PC3200 non-ECC Unbuffered CL3 184-Pin DIMM Memory

Technical Specs:
- Memory Type: DDR SDRAM
- Memory Size: 512MB (2 x 256MB)
- Memory Speed: 400MHz (PC3200)
- Latency Timings: CL3
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered
- Pin Count: 184-pin DIMM

Helpful Notes:
1. This memory kit is compatible with systems that support DDR-400MHz PC3200 memory.
2. Non-ECC memory is not as reliable as ECC memory, but is generally less expensive.
3. This kit includes two 256MB modules, allowing for dual-channel memory configuration on compatible systems.