Changes

* With XH2.54 5V power connector, just use it if you are using a ultra large capacity SSD if the current is not enough,if you find that the SSD is not working properly, it is possible that the power supply of SSD is not enough, then you need to check the current requirement of your SSD.;

'''PS''': Maximum current for pcie wire is <mark>0.8-1A</mark>. if you find that the SSD is not working properly, it is possible that the power supply of SSD is not enough, then you need to check the current requirement of your SSD.