Infineon HYS72T128420EFD-3S-B | 1GB DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Dual Rank Memory Module

Technical Specifications:
- Memory Size: 1 GB
- Memory Technology: DDR2 SDRAM
- Memory Speed: 667 MHz
- Memory Standard: PC2-5300
- Error Checking: ECC
- Signal Processing: Fully Buffered
- CAS Latency: CL5
- Number of Pins: 240
- Form Factor: DIMM
- Rank: Dual
- Operating Voltage: 1.8V
- Refresh Rate: 8K
- Module Configuration: 128Mx72

Helpful Notes:
- ECC memory is designed to detect and correct single-bit errors in data.
- Fully Buffered memory modules have an additional buffer between the memory controller and the memory chips, which can improve performance but also increase latency.
- DDR2 memory is older and slower than DDR3 or DDR4, but may still be useful in older systems that don't support newer memory standards.