Consider your needs carefully before deciding.
I checked there, it lists 2000mhz, but I couldn't locate it at any shops near my home in Israel.
Launch cpu-z, select the SPD option. It will display the installed memory part number.
Kingston is not part of HyperX.
Kingston produces the Hyper X series, with KHX2133C14D4/4G as the model. The part is rated at 2133mhz Jedec and is not an OC memory.
Thanks , now I can purchase the same kit and upgrade.