MANO SIM Card socket can easily reachable on the upside of the HAT.
The cooling fan is designed for active cooling mode, the heat can be discharged in time.
LED and fan both have switch, you can control the LED and fan separately, it not bring the dazzing feeling when you use it in the night.
NOTE: With cooling fan and ambient light

Product description: 1. compatible with FOR models that have the 40-pin GPIO header (4, 3, 2, B+)
2. Compatible the following PCIe Modules
FOR : EC25/EC21/ EC20 /UC20/ LTE-EP06
FOR : AirPrime Series
FOR Telit: LM960, LE910V2, HE910, LE910Cx
FOR : ME909s-120, ME909s-821, and more
FOR Simcom: SIM7100, SIM7230, and more
FOR : ZM8620, and more
FOR : MPCI-L2 Series
FOR Thales: PLS62W, mPLS8, mPLAS9
3. Compatible the following Boards
1. FOR 4, 3, 2, B+
2. FOR Tinker Board
3. FOR Rock 64x
4. FOR 's board
5. FOR Latte Panda
Material: abs
colour: As Shown

Package Contents:
1 x 3G/4G<E basic HAT
1 x USB 2.0 to Type-C cable
2 x IPX1 cable
1 x Screw removal tool
4 x Copper nuts
6 x Screws