The F9 256GB is another low-cost SSD product from KingFast, which pairs the Silicon Motion SM2246EN controller with Micron NAND MT29E1T08CUCBBH8-10:B and the cache is assured by the Samsung K4W2G1646E-BC11 DDR3 RAM (256MB). This model is able to follow the read performances of the Crucial BX100 250GB we have reviewed earlier, but falls behind in terms of writes.