DFI ARS103-Q870 Intel Arrow Lake-S Core Ultra Thin ITX Motherboard with Q870 Chipset, Dual 2.5GbE and 12 to 28 V DC Input

Parcel lockers, self-service kiosks and hospital carts are spread across many sites, often powered from a 24 V supply or a battery, and each visit to reset one is a cost. The ARS103-Q870 is the Q870 build in the DFI ARS103 series of Thin Mini-ITX SBCs, and it combines Intel AMT remote management with a 12 to 28 V DC input on a socketed Intel Core Ultra 200S board.

Eight Arrow Lake-S processors fit the LGA 1851 socket, from the Core Ultra 5 225 and 225T with 10 cores to the Core Ultra 9 285 and 285T with 24, at 65 W or 35 W for the T parts. DFI caps maximum turbo power at 100 W, or 80 W with a graphics card, so the DC supply can be sized with confidence. Two DDR5 SO-DIMMs hold up to 96 GB in dual channel. Integrated Intel graphics drives HDMI 1.4b, DP++ and a USB-C display output at 4K, and an optional M2A module adds an eDP or LVDS panel.

Two 2.5GbE ports use Intel I226-LM, with AMT, and I226-V. Five rear USB 3.2 Gen 2 Type-A ports and four internal USB 2.0 headers serve printers, scanners and card readers, and two RS-232/422/485 headers and 8-bit DIO handle locks and sensors. The PCIe x16 Gen5 slot takes one x16 card or two x8 links, and four M.2 sockets add NVMe at PCIe Gen4 x4, a cellular module with Nano SIM for remote sites, Wi-Fi and a display module, next to two SATA 3.0 ports.

The ARS103-Q870 operates from -5 to 65 °C with CE, FCC, UKCA and RoHS compliance. For ECC memory and a sixth USB 3.2 Gen 2 port, see ARS103-W880; for designs that need no AMT, ARS103-H810 is the simpler build.