| Characteristic | Nmea2Wifi | Nmea3Wifi | Nmea4Wifi |
| Number of Processing Cores | 1 | 2 | 2 |
| Processor Clock | 80 MHz | 240 | 240 MHz |
| Nmea 0183 Input Ports | 2 | 2 | 4 |
| USB Input/Output Port | Yes | Yes | Yes |
| Nmea 0183 Output Port | 1 | 1 | 1 |
| Nmea 0183 Sentence Filtering | No | Yes | Yes |
| Software Update without Cables | Yes | Yes | Yes |
| Inputs with 38400 max Baud Rate | 1 | 2 | 2 |
| Inputs with 9600 max Baud Rate | 1 | 2 | 4 |
| Maximum Output Baud Rate | 115200 | 115200 | 115200 |
| Simple Setup Using a Web Browser | Yes | Yes | Yes |
| Other Languages in addition to English | No | Yes | No |
| Serial to Wifi and Wifi to Serial | Yes | Yes | Yes |
| Creates its Own Wifi Network | Yes | Yes | Yes |
| Can Connect to Existing Wifi Network | Yes | Yes | Yes |
| Internet UDP and TCP protocols | Yes | Yes | Yes |
| Opto-Isolation on all Inputs | Yes | Yes | Yes |
| Simulation Mode of Operation | Yes | Yes | Yes |
| Debug Mode | Yes | Yes | Yes |
| SeaTalk1 Input Support | Yes | Yes | Yes |
| SeaTalk1 Output | No | Yes | No |
| 12V Power Supply Voltage or USB | Yes | Yes | Yes |
| Power Consumption Wifi ON/OFF in mA | 70/30 | 90/10 | 90/10 |
| 30-Day Money Back | Yes | Yes | Yes |
Multiplexers Comparison
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