Note：This product is only suitable for computers with “PD” protocol and “Thunderbolt” protocol interface. There are 4 styles USB HUB.Please check it clearly before purchasing!17 in 1 Model:USB 3.0*3 + USB 2.0*2 + HDMI*3 +TF/SD Card Reader + RJ45 +PD + PC +3.5mm Jack + DC Port + PD Cable + UK/EU Plug + CN DC Cord (Suit) Warm Tips1Each system shows the effect①：Windows system support Three different contents②：Mac OS system support Two different contents③：The smartphone only supports the same screen display of the Android system and does not support the different screen displayNOTE: Does not support IOS system Warm Tips2 It supports MacBook Air — Apple Macbook Air (2018)，Apple Macbook Air (2019)，Apple Macbook Air (2020)