Boost your computer's performance with this 4GB DDR3 SDRAM module. Designed for use with a variety of devices, including MacBook Pro, iMac, Mac MINI, and mid-2009 to mid-2010 laptops, this easy-to-install module is perfect for anyone looking to increase their device's memory capacity. With a bus speed of PC3-8500 (DDR3-1066), this module is sure to provide a reliable and fast performance. You can trust the lifetime manufacturer warranty that comes with this module for peace of mind.