When I asked before I bought it if it was Plug and Play and was answered yes,I never expected the Manual would say I quote "it is recommended to install it at a professional after-sales maintenance site" But before sending it back I talked to Amazon Tech and I have two 3.0 two 2.0 and USB C the HDMI so far works not at 4k though I use it for my music and a 128 GB SDmicro card gives it more , Im happy since as long as you dont need to download much it works very well ,I could have lived without the drama but if someone needed a couple 3.0 and an HDMI 4k and a C usb it and SDmicro and USB 2.0 so far has worked very well and I would tell a friend hey get this its better thjasn hoping a Used PC tower may work this is brand new it is more than I expected Thank You rsdno