Feature: 1. Totally compatible with for RPI 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 USB without stacking with for RPI 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 RPI 4, 3, 2, B+ 2.For Tinker Board 3.For Rock 64 4.For 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 ME909s-120, ME909s-821, etc. For 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 Package List: 1 x 3G/4G LTE Base Hat1 x USB 2.0 to USB Cable1 x Screw Driver1 x Accessories Package1 x User Manual