The product is a 1GB memory module manufactured by Micron. This DDR2 SDRAM DIMM has a total capacity of 1GB with each module containing 512MB of memory. It is designed for non-error-correcting (NON-ECC) applications, with a bus speed of PC2-4200 (DDR2-533) and a CAS latency of CL4. The module has 240 pins and comes in a package of 2 modules. Made in Singapore, this memory module is suitable for upgrading or replacing memory modules in computers.