This is a single 4GB Samsung DDR3 SDRAM memory module with a form factor of UDIMM. It has a bus speed of PC3-12800 (DDR3-1600) and a total of 240 pins. This memory module is compatible with various types of computers and is perfect for upgrading your system's memory.

Please note that this item has been previously used. However, it has been tested and is in great working condition.