Avalue RSC-3568J Rockchip RK3568J 3.5" SBCs with 12 to 24 V DC Input, Dual GbE and Extended Temperature

Outdoor cabinets, roadside equipment and machine controllers need a board that keeps running at -40 °C on a winter morning and at 85 °C inside a closed enclosure in summer, without a fan to fail. The Avalue RSC-3568J series is a family of Rockchip RK3568J 3.5″ SBCs built for that range, on a 146 x 101 mm board with fanless operation from -40 to 85 °C.

The Rockchip RK3568J provides four Arm Cortex-A55 cores and a Mali-G52 GPU supporting OpenGL ES 3.2, Vulkan 1.1 and OpenCL 2.0, which is enough in practice for a signage player, a charging-point interface or a protocol gateway. Memory is 4 GB of LPDDR4 soldered to the board, with 64 GB of eMMC for the operating system and a microSD slot. Avalue lists Android 13 and Debian 11, so the same board can run an Android signage player or a Debian gateway.

I/O is broad for a 3.5″ board. Two GbE RJ45 ports use Realtek RTL8211FDI PHYs. Five serial ports cover one RS-232/422/485 on a DB9, one RS-232/422/485 on a header and three RS-232 on headers, with two CAN ports and 16-bit GPIO alongside. Displays connect through HDMI at up to 4096 x 2160, LVDS and eDP, with two running together. An M.2 B-key 3042 slot takes a SATA SSD or a 4G module with a nano SIM socket, and an M.2 E-key 2230 slot takes Wi-Fi and Bluetooth. USB covers two USB 3.0 Type-A ports, one with OTG, and two internal USB 2.0 headers, and a front touch button connector handles power, volume and brightness keys.

The range is one build: RSC-3568J-6W-A104R, with 4 GB of memory, 64 GB of eMMC and the full -40 to 85 °C fanless rating, so one part number covers indoor and outdoor installs.

Power is 12 to 24 V DC on a lockable DC jack or a 4-pin wafer, with AT power-on when input is applied. Avalue tests the board to IEC 60068-2-64 random vibration and ISTA 2A drop, and it carries CE and FCC compliance with 10 to 95% non-condensing humidity. The RSC-3568J series suits outdoor signage, EV chargers, transport ticketing, energy monitoring and factory automation, where wide temperature fanless operation removes a common point of failure.