pcie 3.0 x4 ssd

I have an HP ProBook 430 G5 laptop and a GIGABYTE Gen3 2500E SSD 500GB, and as the SSD box says and as the website says, read speed is up to 2300 MB/s so I would expect my read speeds to be at least above 2000 MB/s. I know it says UP TO but I'm getting read speeds of only 1500 MB/s and the...

Hello. I wanted to add a PCIe SSD in my desktop computer. My PC has PCIe 3.0 x16 slot. But in the specs sheet of my PC, under PCIe SSD, they have written a sentence “up to 350GB”. Does this really mean that i cannot add SSD more than 350GB ??? I am asking this question because in specs sheet...