10 TECH ADVISOR • MARCH 2020REVIEW
I was able to connect to an external 4K display
perfectly well using the Surface Dock, but when I added
a second, 1080p display, the 4K display connection
became unreliable. (A direct connection to an external
display worked fine.) You would think that a company
like Microsoft, which owns the operating system and
manufactures the hardware, would solve these issues.
On the rear of the Surface Pro X is a rather
delightfully engineered panel that can be popped off
using a SIM tool. Inside hides a SIM slot, as well as the
user-accessible SSD. Microsoft says the removable SSD
is intended for data portability, and you’ll have to look
long and hard to find compatible SSDs for this small
space anyway. A small magnet helps guide the panel
back into place, a thoughtful design detail.The Surface Pro X SIM
slot hides beneath the
kickstand, and underneath
a removable metal cover