8GB Capacity 3200 MHz Clock Speed PC4-25600 1.2V 22-22-22-52 Timings Single Rank Plug-and-Play 3200MHz RAM automatically can downclock to 2933MHz or 2666MHz ifsystem specification only supports 2933MHz or 2666MHz  

8GB (1 x 8GB) Capacity 3200 MHz Clock Speed PC4-25600 1.2V 22 CAS Latency Unbuffered, Non-ECC