It supports hot swap and itand 39;s plug-and-play.This multifunctional hub can solve the trouble of less external interface of notebooks.The hub case is made of aluminum alloy material, which can quickly export the heat generated inside to the surface and make the transmission more stable.Item Name: Type-C HubMaterial: Aluminium AlloyApplicable Models: for MacBook Pro SeriesInput: USB-COutput: 2 x USB 2.0, 1 x PD, 1 x Micro Secure Digital Card Slot, 1 x Secure Digital Card SlotUSB2.0 Transfer Speed: 480MbpsPD Power: 60WCard Reader: Support Secure Digital/Micro Secure Digital Card (Not Included)Features: Fast Charging, Dual Type-C Male Ports, Plug and PlaySize: 130mm x 14mm x 7mm/5.12" x 0.55" x 0.28" (Approx.)Notes:Due to the light and screen setting difference, the itemand 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Type-C Hub Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.