does ddr4 ram work in ddr3 slot

does ddr4 ram work in ddr3 slot Product Description：

does ddr4 ram work in ddr3 slot & does ddr4 ram work in ddr3 slot é um slot (caça-níquel) da Playtech.  .

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Customer Reviews：does ddr4 ram work in ddr3 slot é um slot (caça-níquel) da Playtech. .