Feature:1. Totally compatible with for Raspberry Pi 4/3/2/B+ models with the 40-pin GPIO header2. Clipin mini PCIE 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 carriers3. For NANO SIM card socket can easily reachable from the upside of the HAT4. Can be used standalone with PC/Laptop over micro USB without stacking with for Raspberry Pi5. Efficient and low quiescent current power circuit can support up to 3AmpsSpecification:Item Type: 3G/4G LTE Base HatWorking Temperature Range: -40 ~ 80Compatible with the Following Boards: 1.For Raspberry Pi 4, 3, 2, B+2.For Asus Tinker Board3.For Rock 644.For Samsung ARTIKs Board5.For Latte PandaCompatible with the Following Mini PCI-E Modules: For Quectel: EC25/EC21/ EC20 /UC20/ LTE-EP06For Sierra: AirPrime MC SeriesFor Telit: LM960, LE910V2, HE910, LE910CxFor Huawei: ME909s-120, ME909s-821, etc.For Simcom: SIM7100, SIM7230, etc.For ZTE: ZM8620, etc.For U-Blox: MPCI-L2 SeriesFor Thales: PLS62W, mPLS8, mPLAS9Size: Approx. 85 x 55mm / 3.3 x 2.2in25mm / 1in.Package List:1 x 3G/4G LTE Base Hat1 x USB 2.0 to Micro USB Cable1 x Screw Driver1 x Accessories Package1 x User Manual