Capacity: 1GB

Manufacturer: Hynix (though the chips are made by Nanya)

Part Number: HYMP125S64CP8 - S6 DT

Type: PC2-3200U (Unbuffered DDR2 SDRAM)

Bus Speed: The PC2-3200 rating indicates a theoretical data transfer rate of 3200 MB/s, which corresponds to a clock speed of 400MHz (or sometimes listed as DDR2-400).

Rank: 2Rx8 (Dual Rank, with x8 chip organization).

Pin Count: This is a 240-pin DIMM (standard for desktop DDR2).

Timings: The "-12" on the label, and the "666" which is likely a speed rating misprint or a very loose timing, could be misread. The PC2-3200U is the critical speed indicator, which is 400MHz. The module's performance is typically rated by the slowest component, which in this case is the PC2-3200 standard.