| Product name | Radxa ROCK 4B |
| SoC | RK3399 |
| CPU | Dual-Core ARM Cortex™-A72 @ 1.8GHz and Quad-Core ARM Cortex‑A53 @ 1.4GHz |
| GPU | ARM Mali™ T860MP4 |
| Multimedia | H.264, H.265 and VP9 decoder by 4K@60fps H.264 encoder by 1080@60fps |
| RAM | LPDDR4 |
| Storage | eMMC Connector microSD Card Slot |
| SPI Flash | Yes |
| Audio | 1x Headphone Jack with Microphone Input |
| Video Output | 1x Standard HDMI Up to 4Kp60 1x 2-lane MIPI DSI for MIPI LCD |
| USB | 2x USB 2.0 HOST 2x USB 3.0 OTG / HOST |
| Ethernet | 1x Gigabit Ethernet |
| PoE | Gigabit Ethernet port with PoE support Additional PoE HAT Required |
| Wireless | WiFi 5 & BT 5 |
| Antenna | Onboard Antenna |
| M.2 E Key Connector | Yes |
| RTC Header | Yes |
| 40-Pin GPIO Header | Yes |
| Form Factor | 85 mm x 56 mm |
