From what I've found it has these as I/O ports,
1 x DC in Power 1 x Earphone 1 x RJ-45 (Ethernet) 1 x TF Card (micro sd card) 1 x USB 2.0 port 1 x USB 2.0 OTG port (mini usb) 1 x HDMI output
Surface Pro (2017) vs Surface Pro 4
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