CT519151 - Crucial Technology 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 240-Pin DIMM 1.8V Memory Upgrade for A

Technical Specs:
- Memory Type: DDR2 SDRAM
- Memory Size: 4GB Kit (2 x 2GB)
- Memory Speed: 667MHz
- Latency Timing: CL5
- Pin Count: 240-pin
- Voltage: 1.8V
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered

Helpful Notes:
1. This memory upgrade is specifically designed for the ASUS RS120-E3 system.
2. DDR2-667MHz is a relatively slow memory speed by today's standards, but may still provide a noticeable performance boost over older memory.
3. Non-ECC memory is generally less expensive than ECC memory, but does not provide the same level of error correction.