The fastest, easiest and most affordable way to improve your computer's performance and speed is with a simple memory upgrade. A memory upgrade will optimize your computer's performance and speed so you can load applications in seconds, multitask with ease and improve battery life. We ensure high-quality and reliability by thoroughly testing every component with intense workloads and real-world applications, far beyond the industry standard. FEATURES Capacity 4GB Name PC4-17000 Short Form 4GB(1Rx8) Type 260Pin Construction Type SO-DIMM Model SO-DIMM Organization 512Mx64 Description DDR4 2133MHz Number of Ranks 1 Extension unbuffered Error Correction non-ECC DRAM Organization 512Mx8 Number of DRAM 8 Construction Type of DRAM FBGA(78ball) Type Height 30mm Voltage 1,2V