| Manufacturer | Qimonda |
| Manufacturer Part # | HYS72T64400HFA-3S-B |
| Memory Type | Fully Buffered Dimm |
| Capacity | 512MB |
| Data Transfer Rate | 667Mhz |
| Pins | 240 Pin |
| Bus Type | PC-5300 |
| Error Correction | Fully Buffered ECC |
| Cycle Time | 6ns |
| Cas | CL5 |
| Memory Clock | 166Mhz |
| Rank | Rank 1 |
| Voltage | 1.8 |