Avalue ECM-EHL-J6412-A1R 3.5″ SBC with Intel Celeron J6412, Triple 4K Display and Wide-Range DC Input

A compact embedded design often has to drive several screens, talk to older serial equipment and run from whatever DC supply the cabinet already has. The ECM-EHL-J6412-A1R is the Celeron J6412 build in the Avalue ECM-EHL series: a 3.5 inch SBC, also called a 3.5 inch motherboard, measuring 146 x 101 mm with the processor soldered on the bottom layer.

The Intel Celeron J6412 runs at up to 2.6 GHz with 1.5 MB cache, from the Elkhart Lake family rated at 4.5 to 12 W. One 260-pin SO-DIMM socket takes up to 32 GB of non-ECC DDR4-3200. Intel UHD Graphics drive HDMI 2.0b, DisplayPort 1.4a and eDP 1.3, each up to 4096 x 2160 at 60 Hz, with up to three displays at once, so one board can feed a built-in panel over eDP and two external screens.

I/O covers one 2.5GbE and one Gigabit Ethernet port on Intel I225 and I210 controllers, two USB 3.1 Gen2 ports at 10 Gbps, four USB 2.0, one RS-232/422/485 and three RS-232 ports, 8-bit GPIO and a 92HD73C audio codec. An M.2 B key (2242/3042) with a SIM slot takes an SSD or an LTE card, an M.2 E key (2230) adds a PCIe x1 and USB 2.0 module, and a SATA III port takes a drive. TPM 2.0 and a hardware watchdog are on board. The ECM-EHL-J6413-A1R is the same board with a Celeron J6413 at up to 3.0 GHz, and the ECM-EHL3-J6412-A1R keeps the J6412 and adds a third LAN port, six COM ports and an M.2 M key.

Power is 9 to 36 V DC with AT and ATX modes, AT by default. The datasheet lists a standard version for 0 to 60 °C and an extended version for -40 to 85 °C, both with 0.5 m/s airflow, so confirm which version your build needs when ordering. The board weighs 0.2 kg, supports Windows 10 and Linux, and carries CE and FCC Class B marks.