The ASUS IoT X621ES-IM-AA is an industrial 3.5-inch SBC with Intel Atom® x6211E processor (Elkhart Lake, 2 cores, 6 W TDP), DDR4-3200 SO-DIMM up to 32 GB and triple display output (HDMI + DP++ + LVDS).
The extended temperature range of −40 °C to 85 °C, six COM ports and dual GbE LAN make it a rugged solution for demanding embedded applications.
Processor & platform: The X621ES-IM-AA is based on the Intel Atom® x6211E (Elkhart Lake) with 2 cores, 6 W TDP, 1.3 GHz base frequency and up to 3.0 GHz turbo clock. The integrated Intel UHD Graphics supports three simultaneous displays via HDMI 2.0 (4K/60 Hz), DP++ 1.2 (4096×2160/60 Hz) and eDP 1.2/LVDS (1920×1080/60 Hz).
Memory & storage: One SO-DIMM slot supports DDR4-3200 MHz with in-band ECC (IBECC), maximum 32 GB. Mass storage: 1× SATA Gen 3.0 (6 Gb/s), M.2 M-Key 2280 (SATA/PCIe×2), M.2 E-Key 2230 (USB 2.0/PCIe for WLAN/BT), M.2 B-Key 3042/3052 (USB 2.0, LTE/Nano-SIM).
I/O & connectivity: Rear: 1× HDMI, 1× DP, 4× USB 3.2 Gen2 (10 Gb/s), 2× GbE (Intel® i210-IT, WOL/PXE). Internal: 6× COM (2× RS-232/422/485, 4× RS-232), 1× USB 2.0 header (2× USB), 8-bit GPIO, SMBus, I²C, chassis fan (PWM+DC), AT/ATX jumper. Audio: Realtek ALC897 HDA.
Industrial features: Extended temperature range −40 °C to 85 °C (operation & storage), relative humidity 10–95 % (non-condensing). DC input 9–36 V. TPM: 1× SPI TPM header. Certifications: CE, FCC, BSMI, VCCI, ISED, EN62368. OS: Windows 10 IoT Enterprise, Ubuntu.
