1、COMPATIBLE MODELS: 3G 4G LTE Base HAT for RasPi, for Asus Tinker Board, for ARTIK, for Rock64 Media, for Liber Computer Board, fully compatible with for RasPi models with 40pin GPIO connector (4, 3, 2, B+). 2、COMPATIBLE MINI PCIE MODULES: for Quectel EC25/EC21/ EC20 /UC20/ LTE EP06; for Sierra for AirPrime MC Series; for Telit LM960, LE910V2, HE910, LE910Cx; for ME909s 120, ME909s 821 and more ME909s 821 and more; for Simcom SIM7100, SIM7230 and more; for ZTE ZM8620 and more; for U Blox MPCI L2 Series; for Thales PLS62W, mPLS8, mPLAS9. 3、WITH SIM CARD SLOT: The NANO SIM card slot is located on the top of the HAT and is easily accessible for easier use. 4、ACTIVE COOLING: The cooling fan is designed with active cooling method, heat can be discharged in time to maintain high speed operation. 5、SEPARATE SWITCHES: LED and fan have separate switches to control the LED and fan separately, which will not bring a blinding feeling when used at night. 1 x 3G 4G LTE Base HAT1 x USB Cable2 x Antenna3 x IPX1 Cable1 x Screwdriver1 x Screw Bag Item Type: 3G 4G LTE Base HAT for Asus Tinker BoardMaterial: ABS, PCBCard Slots: 2xNANO SIM Card Slots(without SIM card), 2xSMA Antenna Ports, 1xmini PCI E port, 2xTYPE C Ports, 1x Audio PortLED: Automatic Color Changing LEDFan: Built inCompatible With the Following Brands of Mini Pcie Modules:for Quectel: EC25/EC21/ EC20 /UC20/ LTE EP06for Sierra: for AirPrime MC Seriesfor Telit: LM960, LE910V2, HE910, LE910Cxfor ME909s 120, ME909s 821, and morefor Simcom: SIM7100, SIM7230, and morefor ZTE: ZM8620, and morefor U Blox: MPCI L2 Seriesfor Thales: PLS62W, mPLS8, mPLAS9Compatible With the Following Brands of Boards:for RasPi 4, 3, 2, B+, for Asus Tinker Board, for Rock 64, for ARTIK's board, for Latte Panda