Completely hidden and fits snugly into your Surface Book 2 & Surface Book 3 15" SD card slot. 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. 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. GB SAMSUNG PRO Plus MicroSD Memory Card! Speed MicroSD Card. 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. I plan to purchase an SD card in order to gain additional storage for my pictures. I'd like to know the maximum size and speed that my laptop's. No problems or scratches on the screen. ?. Does a great job and worked flawlessly. 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. 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. Touch screen works, micro sd card slot works, and usb works. Bought this for a Microsoft Surface Pro 3 LapTab (Laptop with the alter ego of a Tablet). Very good condition product.