Yeah honestly I'm seeing two different speeds, CPU-z looks like its reporting 1866MHz and tack manager seems to be reporting 2400MHz.
According to google, your CPU in that laptop supports up to 2400MHz and I assume its non XMP so you would need a JEDEC 2400MHz kit.
For 16GB get this: https://www.amazon.com/dp/B01BU77LQW/ref=emc_b_5_t
For 32GB: https://www.amazon.com/dp/B01BU77M4I/ref=emc_b_5_t
Neither are JEDEC 2400MHz though as far as I'm aware.
Can't guarantee that those will run at 2400MHz, but this would since this is JEDEC: https://www.newegg.com/p/0FC-00KP-00001