external graphics card

[avijitd268]

i have a lenovo ideapad 300 with 6th gen i5 processor. i want to add an external gpu but dont want to compromise the mini pci express port. is this possible. is there a hdmi to hdmi cable that i can connect from the external dock to the hdmi port on my laptop

 

[Kasper Jorgensen]

You could look for the Asus ROG X2 Station BUT..

First of all you will need a laptop with a Thunderbolt port.
Second of all, the price is very high and the performance, compared to internal GPU, is very low so it is not really worth it. For the price of the X2 Station and on top of that the GPU to put inside you could get a brand new Computer.