Advantech USM-110 - Expanded Module Installation

USM-110 User Manual 10
2.4 Expanded Module Installation
Step 1.Unscrew the affixing screws and remove the orange rear cover.
Step 2.Unscrew the screws circled in red below, and remove the bracket.
Step 3.Install the Wi-Fi or 4G module into the M.2 or mini PCIe slot, respectively.