CT2KIT25672AA80E - Crucial Technology 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 ECC Unbuffered CL6 240-Pin DIMM 1.8V Memory

Technical Specs:
- Capacity: 4GB (2 x 2GB)
- Memory Type: DDR2 SDRAM
- Memory Speed: 800MHz (PC2-6400)
- Latency Timings: CL6
- Error Correction Code (ECC): ECC
- Buffered/Unbuffered: Unbuffered
- Pin Count: 240-pin DIMM
- Voltage: 1.8V

Helpful Notes:
1. ECC memory is designed for servers and workstations, providing additional protection against data corruption.
2. Unbuffered memory is faster but has a lower capacity than buffered memory.
3. Make sure your motherboard supports DDR2 memory before purchasing.