Features: brand new and high quality Completely for the model with 40-pin GPIO connectors (4, 3, 2, B+). Efficient and low quiescent current power circuit can support up to 3Amps. It can be used independently with PC/laptop on Micro USB without being stacked with Pi. The Clip-in Mini PCIe slot is for the global LTE, UMTS/HSPA+and GSM/GPRS/EDGE coverage, and has regional or global modules suitable for different frequencies and carriers. The manosim card slot can be easily pulled out from above the HAT. Specifications: Item Type: 3G/4G LTE Base Hat Working Temperature Range: -40 ~ 80 for the Following Brand Boards: For 4, 3, 2, B+ For Asus Tinker Board For Rock 64 For ARTIK's Board For Latte Panda for 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. 8.5x5.5x2.5cm/3.3x2.2x1in Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1Set x 3G/4G LTE Base Hat