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System Memory
The XT244 and XT1144 feature feature 4GB of LPDDR4-3200 DRAM.
Wireless Module
The XT244 and XT1144 have an internal M.2 (key E) slot for installing a compatible wireless module. The M.2 wireless module connects via cables to two external, attachable wireless antennas.
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The XT244 and XT1144 have an internal M.2 slot (key M) slot for PCIe (NVMe) SSD drives. See this page for a full list of SSD specifications.