The product is a set of two Nanya NT1GT64U8HB0BY-3C 1GB PC2-5300U DDR2-667MHz desktop RAM memory modules. Each module has a capacity of 1GB, providing a total of 2GB of memory. These DDR2 SDRAM modules are designed in a DIMM form factor with 240 pins and are unbuffered, operating at a bus speed of PC2-5300 (DDR2-667) with a memory feature of 667Mhz and CL 5. The modules also have gold pins and are non-ECC, making them suitable for standard desktop computer systems requiring reliable and high-performance memory components.