Touch screen works, micro sd card slot works, and usb works. I plan to purchase an SD card in order to gain additional storage for my pictures. Very good condition product. Read SD/TF Cards Simultaneously: Built in SD and TF slots easily access files from universal SD card and Micro SD card; Support 2 cards reading simultaneously. Bought this for a Microsoft Surface Pro 3 LapTab (Laptop with the alter ego of a Tablet). GB SAMSUNG PRO Plus MicroSD Memory Card! Speed MicroSD Card. 8 pin to SD Memory Card Reader USB OTG Adapter For iPhone 13 12 11 X · Micro SD Memory Card Module Socket SMD Slot Base Arduino Mobile Phone Push Smt · 4in1 USB. USB hub Surkit-E with 2 USB , Ethernet Port x 1+ Mini DP to HDMI x 1+SD(SDHC) x 1+TF(Micro SD) x 1 card slots for surface Pro 3, mm space from USB. No problems or scratches on the screen. I'd like to know the maximum size and speed that my laptop's. This multifunctional hub has 6 interfaces, including 3 USB ports +1 SD(HC HX) card slot +1 Micro SD(TF) card slot +1 Mini DP to HDMI video output. Completely hidden and fits snugly into your Surface Book 2 & Surface Book 3 15" SD card slot. ?. Opluz Surface Pro 4 Hub, USB Adapter with 3 x USB Ports Fast Speed laptop adapter docking - Output: 3 USB port, 1 HDMI port,1SD&1 Micro SD card slot. Does a great job and worked flawlessly.