| Installation type | Surface mount |
| packing | TR,CT,CT |
| series | SMART™ SAM R21 |
| storage capacity | 64kB Flash Memory,8kB SRAM |
| Voltage - Supply | 1.8V ~ 3.6V |
| type | TxRx + MCU |
| working temperature | -40°C ~ 85°C |
| Encapsulation/Housing | 48-VFQFN Exposed Pad |
| Warehouse | China/Hong Kong |
| quality | Original genuine |
| LSB/g | -99dBm |
| frequency | 2.4GHz |
| Power output | 4dBm |
| RF series/standard | currency ISM > 1GHz |
| modulation | O-QPSK |
| Data rate (maximum) | 250kbps |
| serial interface | I²C,SPI,UART,USART,USB |
| GPIO | 28 |
| Current - Receive | 11.3mA ~ 11.8mA |
| Current - transmission | 7.2mA ~ 13.8mA |