ASRock Industrial SBC-250 3.5" SBCs with Intel Elkhart Lake, Four COM Ports and Dual 2.5GbE

Machine controllers, HMIs and data loggers often have to drive a built-in LCD, talk to serial equipment and run from a 12 or 24 V supply in a compact housing. The ASRock Industrial SBC-250 series is a family of 3.5 inch SBCs, also called 3.5 inch motherboards, built for that brief, with four Intel Elkhart Lake processor choices on one 147 x 102 mm board.

Every SBC-250 shares the same layout. Two 260-pin DDR4-3200 SO-DIMM sockets run in dual channel for up to 32 GB. Intel Gen 11 Graphics drives three displays: HDMI 2.0b at up to 4096 x 2160 at 60 Hz, VGA at up to 1920 x 1200, and a shared connector for dual-channel 24-bit LVDS or eDP. Two 2.5GbE ports run on Intel I225LM controllers. USB covers one USB 3.2 Gen2 and one USB 2.0 at the rear plus one USB 3.2 Gen1 and five USB 2.0 inside, and COM1, COM2 and COM4 are RS-232 with COM3 RS-232/422/485, alongside 4 GPI and 4 GPO. An M.2 Key B with SIM socket takes a 4G or 5G module, an M.2 Key E takes wireless, and an M.2 Key M on PCIe x1 plus SATA3 hold storage. TPM 2.0 is onboard.

The series offers four processors. The SBC-250J carries the quad-core J6412 at up to 2.6 GHz and 10 W, and the SBC-250D the quad-core J6426 at up to 3.0 GHz and 10 W, the highest clock in the family. The SBC-250L carries the dual-core N6210 at up to 2.6 GHz and 6.5 W for the lowest power, and the SBC-250N the quad-core N6415 at up to 3.0 GHz within 6.5 W.

Power is 9 to 36 V DC on a 4-pin wafer connector, which covers 12 V and 24 V supplies, with AT and ATX power-on modes and a SATA power output. The series operates from 0 to 70 °C and can be stored from -40 to 85 °C at 5 to 90% humidity. A watchdog timer covers 0 to 255 seconds, and each board stands 22 mm tall. Designs where these specs fit include operator panels with a built-in LCD, machine controllers with serial devices and remote gateways on 4G or 5G.