Radxa’s Rockpi4 based on RK3399 Launches For $39

Radxa has released specs for a $39 “Rock Pi” Raspberry Pi lookalike board with a Rockchip RK3399, USB 3.0, M.2, HDMI 2.0, and native GbE, plus optional WiFi, BT, and PoE. The Rock Pi runs Linux or Android. It closely matches the RPi 3 layout, just like the RK3399-based NanoPi M4, and it seems it may be the most affordable RK3399 based SBC right now, with a starting price of $39 with 1GB RAM. The Rock Pi Model A sells for $39 (1GB), $49 (2GB) and $65 (4GB) respectively. The Model B, which includes PoE and a WiFi-ac/Bluetooth 5.0 wireless module will sell for $49 (1GB), $59 (2GB) or $75 (4GB). The only real difference between model A and model B is that the latter includes a wireless module, and optional support for PoE. The ports on the 85 x 54mm Rock Pi are placed at the right side, where Pi lovers would expect them to be. Unlike the RPi 3B or 3B+, the GbE port is standard, offering at least 939Mbps. Like the 3B+, it supports Power-over-Ethernet using the same official Raspberry Pi PoE HAT. Thespecs are almost similar to those of the $75 (2GB) NanoPi M4.

Radxa’s Rockpi4 based on RK3399 Launches For $39

The most significant difference with NanoPi M4 is that the Rock Pi has an M.2 storage slot for NVMe SSDs, but lacks the M4’s 24-pin GPIO interface, which extends the 40-pin connector found on both boards. The NanoPi M4 also has standard wireless (but no PoE) and offers 4x USB 4.0 host ports instead of the 2x 3.0 and 2x 2.0 on the Rock Pi.

The Rock Pi 4 seems to be the most affordable RK3399 SBC yet, even cheaper than the smaller, more limited (1GB only) $50 NanoPi Neo4. It also offers a microSD slot and an empty eMMC socket in addition to the M.2. A key selling point of the RK3399, is the HDMI 2.0 port. The board is equipped with 2-lane MIPI-DSI and -CSI interfaces for dual displays and camera attachments, respectively. Other available features include an audio jack with mic, an RTC, and a USB Type-C port for a wide-range of input power.

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