| Network | 
| Ethernet | 
10/100M auto-negotiation Ethernet port, with PoE enabled, RJ45 connector | 
| Cellular | 
supports global 4G/3G/2G communication (via onboard SIM slot) | 
| WiFi | 
supports 802.11b/g/n, 2.4GHz | 
| Video / Audio | 
| Camera | 
2x CSI ports, can be used simultaneously | 
| HDMI | 
HDMI HD port | 
| Display | 
DSI port, for connecting Raspberry Pi DSI display | 
| Audio | 
3.5mm audio jack, stereo output | 
| Speaker | 
4PIN speaker connector, supports 8O 5W speaker | 
| Industrial Isolated Interfaces | 
| 1 × RS232 | 
DR9 (male), isolated, with TVS protection, anti-surge, and ESD protection | 
| 1 × RS485 | 
screw terminal, isolated, with 600W lightning-proof, anti-surge, and 15KV ESD protection, allows using 120O terminal resistor | 
| 1 × CAN | 
screw terminal, isolated, lightning-proof, and ESD protection, allows using 120O terminal resistor | 
| 4 × GPIO | 
screw terminal, isolated, 2 channels as isolated input, 2 channels as isolated output | 
| 1 × ADC | 
screw terminal, isolated, 16-bit, 860SPS | 
| Common used ports | 
| 2 × USB2.0 | 
USB type-A connector | 
| 1 × USB SLAVE | 
for burning system image into CM3 / CM3+ | 
| 1 × USB TO UART | 
connects to Raspberry Pi serial port by default, configurable by jumper | 
| 1 × RTC | 
real time clock | 
| 1 × Micro SD card slot | 
for Micro SD card with pre-burnt system (CM3 Lite / CM3+ Lite only) | 
| 1 × SIM slot | 
supports standard 4G/3G/2G cellular SIM card | 
| Other | 
| Power supply | 
DC 7~36V wide voltage range input | 
| Case | 
Industrial grade aluminum alloy case |