Features: 1.Totally compatible with for Raspberry Pi 4/3/2/B+ models with the 40-pin GPIO header 2.Clip?in mini PCI?E socket is compatible with worldwide LTE, for UMTS/HSPA+ and for GSM/GPRS/EDGE coverage with regional or global modules which work with different frequencies and carriers 3.For NANO SIM card socket can easily reachable from the upside of the HAT 4.Can be used standalone with PC/Laptop over micro USB without stacking with for Raspberry Pi 5.Efficient and low quiescent current power circuit can support up to 3Amps specification:Item Type: 3G/4G LTE Base Hat Working Temperature Range: -40℃ ~ 80℃ Compatible with the Following Brand Boards: 1.For Raspberry Pi 4, 3, 2, B+ 2.For Asus Tinker Board 3.For Rock 64 4.For Samsung ARTIK’s Board 5.For Latte Panda Compatible with the Following Brand Mini PCI-E Modules: For Quectel: EC25/EC21/ EC20 /UC20/ LTE-EP06 For Sierra: AirPrime MC Series For Telit: LM960, LE910V2, HE910, LE910Cx For Huawei: ME909s-120, ME909s-821, etc. For Simcom: SIM7100, SIM7230, etc. For ZTE: ZM8620, etc. For U-Blox: MPCI-L2 Series For Thales: PLS62W, mPLS8, mPLAS9 Size: Approx. 85 x 55mm / 3.3 x 2.2in 25mm / 1in PackageList: 1 x 3G/4G LTE Base Hat 1 x USB 2.0 to Micro USB Cable 1 x Screw Driver 1 x Accessories Package 1 x User Manual