This product is either discontinued or we cannot get that from suppliers.
Kingston HyperX HX318LS11IB/4 SODIMM Memory, Capacity 4GB, 1 Module, Speed 1866MHz (PC3-14900), Non-ECC, CAS Latency 11, FF DDR3, 1R (Single Rank), 204 Pin, Black, Memory Voltage 1.35v.
Kingston HyperX 4GB DDR3L 1866MHz CL11 240-Pin SODIMM Memory.