Multitask with Ease Having multiple apps or programs open can slow down your system as each compete for a limited amount of memory resource. A memory upgrade can improve performance by expanding your system's memory capacity allowing you to do more at once Compatible with select systems that support DDR3 DIMM (UDIMM) RAM Memory Desktop Computers Gaming PCs & Rigs Workstations Ensured Reliability All A-Tech memory modules undergo quality control testing to ensure dependable and reliable performance RAM Type DDR3 Speed 1066MHz (1067MHz), PC3-8500 / PC3-8500U Form Factor DIMM ( 240-Pin ) ECC Type Non-ECC Unbuffered ( UDIMM ) Voltage 1.5V - JEDEC DDR3 Standard Boost Your System Maximize performance and get the most out of your system. A memory upgrade is one of the quickest and easiest ways to improve your system Accelerate Speeds Speed up loading times and improve your system's responsiveness with DDR3 1066MHz (PC3-8500) memory. Dependability All A-Tech memory undergo extensive quality control testing to ensure that every module that leaves our door has superior, dependable performance.