The thing i like about gskill is Their life time warranty. Say if you bought used on over ebay especially 2nd hand. No need for a receipt or proof of purchase gskill with send u replacement modules. I did not see the price on those hyperX so low. I know the are the best but buying that a such a low price then flashing then with the program and adding the profiles and such. I kinda of want the hyper x now. lol There are 4 so-dimm slots in the ranger here is the link for the gskill for ebay and also mybad... I go the 1866 mhz. here is the link https://www.ebay.com/itm/G-SKILL-Ri...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 That was mybad guys... sorry about that.