LattePanda IOTA Questions

Does the M.2 M Key expansion board for the LattePanda IOTA fit inside the Aluminum Heatsink Case?

Does the CPU TDP have to be configured down for the Aluminum Hetasink Case or can it support the full 15W?

Https://wiki.dfrobot.com/SKU_FIT1029_Aluminum_Heatsink_Case_for_LattePanda_IOTA

https://wiki.dfrobot.com/SKU_DFR1250_M2_M_Key_Expansion_Board

Regarding the power consumption of the IOTA I see it listed as:  Minimum power: 15V @ 1.8A

So the board by itself without any expansion slots can get by with a 27W PD power supply at full speed?  Then I guess if you add an M.2 SSD you would probably need 45W PD?