MANO SIM Card socket can easily reachable on the upside of the HAT.<br> The cooling fan is designed for active cooling mode, the heat can be discharged in time.<br> LED and fan both have independent switch, you can control the LED and fan separately, it will not bring the dazzing feeling when you use it in the night.<br> NOTE: With cooling fan and ambient light<br> : 1. compatible with FOR Raspberry Pi models that have the 40-pin GPIO header (4, 3, 2, B+)<br> 2. Compatible the following brand Mini PCIe Modules<br> FOR Quectel: EC25/EC21/ EC20 /UC20/ LTE-EP06<br> FOR Sierra: AirPrime MC Series<br> FOR Telit: LM960, LE910V2, HE910, LE910Cx<br> FOR Huawei: ME909s-120, ME909s-821, and more<br> FOR Simcom: SIM7100, SIM7230, and more<br> FOR ZTE: ZM8620, and more<br> FOR U-Blox: MPCI-L2 Series<br> FOR Thales: PLS62W, mPLS8, mPLAS9<br> 3. Compatible the following brand Boards<br> 1. FOR Raspberry Pi 4, 3, 2, B+<br> 2. FOR Asus Tinker Board<br> 3. FOR Rock 64x<br> 4. FOR Samsung ARTIK's board<br> 5. FOR Latte Panda<br> Material: abs<br> colour: As Shown<br> Package Contents:<br> 1 x 3G/4G<E basic HAT<br> 1 x USB 2.0 to Type-C cable<br> 2 x IPX1 cable<br> 1 x Screw removal tool<br> 4 x Copper nuts<br> 6 x Screws<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.