CT25664AC800.M16FJ1 - Crucial Technology 2GB DDR2-800MHz PC2-6400 non-ECC Unbuffered CL6 200-Pin SoDimm 1.8V Memory Module

Technical Specs:
- Capacity: 2GB
- Memory Type: DDR2 SDRAM
- Memory Speed: 800MHz (PC2-6400)
- Form Factor: 200-pin SO-DIMM
- CAS Latency: CL6
- Voltage: 1.8V
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
- DDR2 memory is older and slower than DDR3 and DDR4, but may still be useful for older computers or budget builds.
- Non-ECC memory is cheaper than ECC memory but does not have error correction capabilities.
- Make sure your computer's motherboard is compatible with DDR2 memory before purchasing.