Designed Exclusively For Surface, The Sd5750T Thunderbolt 4 Dual 4Kdock (Dfs) Offers Premium Thunderbolt Benefits Now, And Well Into Thefuture. Compatible With Usb4/Thunderbolt 4-Enabled Surface Devices,Supports Usb-C And Usb-A Accessories, And Provides 90W Power Deliveryregardless Of How Many Devices Are Connected. Features Include 11-Ports[Four Thunderbolt 4, Four Usb-A (One 5V/1.5A Charging Port On The Frontand Three Gen2 @ 10Gbps Ports On The Rear), One Gigabit Ethernet Port,One Audio Combo Jack, And One Uhs-Ii Sd 4.0 Card Reader], Single 8K @30 Hz, Or Up To Dual 4K @ 60Hz Video, 40Gbps Data Transfer Speeds, Secureand Manageable Intel Vt-D Dma Protection, A Zero-Footprint Mountingoption, Security Cable Lock Slots, Free Kensington Dockworks Software,And A Three-Year Warranty.