The product is a 4GB Micron laptop memory module with a form factor of SO-DIMM. It is designed as a single module with a capacity of 4GB per module and a total capacity of 8GB. The memory features ECC (Error Correction Code) for improved reliability. The DDR3 SDRAM has a bus speed of PC3-12800 (DDR3-1600) and 204 pins. Manufactured in the United States, this memory module is suitable for expanding the memory capacity of laptops or tablets that require this specific model and form factor._____________This item is sold as-is, in the condition shown and described. Please review all photographs and listing details carefully before purchasing. The seller provides no additional warranty or guarantee. This does not limit any protections available under policy or applicable law.