" 3200MHz RAM can downclock to 2933MHz or 2666MHz if system specification only supports 2933MHz or 2666MHz Improve your system's responsiveness, run apps faster and multitask with ease Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-25600, Voltage = 1.2V, Rank and Configuration = 1Rx16, 1Rx8 or 2Rx8. CAS latency - 22"