Accessing MicroSD Slot

[Retrograde_i486]

I've got OPNsense running on a Fitlet2 (https://fit-iot.com/web/products/fitlet2/fitlet2-specifications/) just fine. I thought maybe I could save some configuration backups to the build in microSD slot so I put a card in but can't seem to figure out how to mount it in FreeBSD and if OPNsense could even access that part of the hardware. Running lsblk while SSH'ed into the device only shows the one drive that's running everything so maybe it's just a FreeBSD limitation?

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lsblk
DEVICE         MAJ:MIN SIZE TYPE                                          LABEL MOUNT
ada0             0:108 119G GPT                                               - -
  ada0p1         0:109 200M efi                                  msdosfs/EFISYS -
  ada0p2         0:110 512K freebsd-boot                             gpt/bootfs -
  ada0p3         0:111 110G freebsd-ufs                              gpt/rootfs /
  ada0p4         0:112 8.0G freebsd-swap                             gpt/swapfs -
  <FREE>         -:-   823M -                                                 - -