The 4GB Kit (2 x 2GB) OCZ OCZ3G1333LV4GK PC3-10666 1333MHz Computer Memory Kit is a high-quality memory module set designed for upgrading computer systems. With a total capacity of 4GB split into two 2GB modules, this DDR3 SDRAM memory kit by OCZ boasts a bus speed of PC3-10666 (DDR3-1333) and a form factor of DIMM. Ideal for boosting system performance, this memory module set is reliable and efficient, making it a great choice for users looking to enhance their computer's memory capacity.