Getting the best performance of the UP Squared by using the active cooler. Are you running heavy graphic programs ? The active cooler would be a solution for you to have best thermal performance.
If you would like to connect all devices with UP Squared, you might require more power input. UP Square 5V6A Power Supply MAX 65W, Cable Length 1500mm DC Jack: 5.5x2.1mm <No Power Cord Included, you need to buy separately from Up Shop> Power code for PSU 5V@6A (U.S. plug) Power code for PSU 5V@6A (EU plug)
Quectel 3G module UC20-G Mini PCIe with SIM slot with RF Cable 150mm and LTE Full band antenna --to use miniPCIe 3G module on UP, please purchase the adapter board --to use miniPCIe 3G module on UP Core, please purchase the high speed carrier board.