Hyper X HX316C10FBK216 is a kit of two 1G x 64-bit (8GB) DDR3-1600 CL10 SDRAM (Synchronous DRAM) 2 Rx 8 memory modules based on sixteen 512M x 8-bit DDR3 FBGA components per module Total kit capacity is 16GB Each module kit has been tested to run at DDR3-1600 at a low latency timing of 10-10-10 at 15V Memory Size 16GB (2 x 8GB) Memory Type DDR3 Module Type DIMM Memory Speed DDR3-1600 M Hz Pin Configuration 240-Pin Registered Unbuffered Unbuffered Error Correction Non-ECC CL-t RCD-t RP-t RAS CL10-10-10 15V Heat Sink Yes (Black) Working Voltage 15V