Lenovo IdeaPad S9e -FR - Manual (Page 45)

CAUTION
When using high power consumption USB device such as USB ODD, use external device
power adapter. Otherwise, it will cause the device unable to be recognized and used, or
system shut down.
Connecting a PC card device
Your computer comes with PCI Express card slot used for connecting PC card devices
that are compatible with the PCI Express card interface.
Chapter 3. Using external devices 37