I have a prebuilt IBuyPower BB960 and I've kept the parts it came with until I started playing Escape From Tarkov and needed more Ram. It came with a Adata XPG DDR4 8GB 2666mhz in the 2nd slot and I tried to add a HyperX Fury 8GB 2666MHz DDR4 CL16 DIMM 1Rx8 HX426C16FB3/8 in the 4th slot. At... More @Wikipedia
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