SK Hynix HMT41GU6BFR8A-PB 2x8GB (16GB Total) 2Rx8 PC3L-12800U Desktop Memory Memory Type: DDR3 SDRAM; Capacity: 8GB each Pins : 240 Pin; Bus Type: PC-12800 Error Correction: Non-ECC; Cycle Time: 1.5ns Cas: CL11; Data Transfer Rate: 1600Mhz Memory Clock: 200Mhz; Rank: Rank 2; Voltage: 1.35