Mini-ITX motherboard ARS101/ARS103 series

Intel® Core™ UltraIntel®DDR5 SDRAM

The ARS101 and ARS103 are Mini-ITX industrial motherboards from DFI designed for Intel Arrow Lake S / Intel® Core™ Ultra processors, offering high I/O density, multiple expansion options and support for up to four independent displays. They target embedded, IoT and industrial deployments that require wide operating ranges and long CPU life-cycle support.

Key highlights

• Processor support: Intel Arrow Lake S / Intel® Core™ Ultra LGA 1851 socket processors, up to 65W TDP.
• Chipset variants: Intel® W880, Q870 or H810 (features vary by model; ECC supported on W880).
• Memory: 2x 262-pin DDR5 SODIMM sockets up to 96GB; DDR5 5600/6400MHz support depending on CPU.
• Display: Quad independent outputs via 1x DP++ (DP++ 1.2), 1x HDMI 1.4b, 1x USB Type-C (DP alt), 1x eDP plus optional M.2 A-key display extension (eDP/LVDS/HDMI/DVI/VGA/DP).
• Expansion: 1x PCIe Gen5 x16 (lane-switching on some variants), multiple M.2 slots (M Key 2280, B Key 2242/3042/3052, E Key 2230, A Key 3030/3030 per SKU).
• Storage & RAID: 1x M.2 2280 M Key (PCIe Gen4 x4 or SATA), 2x SATA 3.0 ports, RAID 0/1/5/10 support with appropriate configuration.
• I/O: Up to 2x Intel 2.5GbE, multiple USB (up to 6x USB 3.2 Gen2 Type-A or variants with USB Type-C Gen2x2), 2x RS-232/422/485, front audio header, 3W speaker connector, 1x 8-bit DIO.
• Security & manageability: Nuvoton TPM 2.0; optional EXT-OOB (Full), optional CNVi / vPro on supported SKUs.
• Operating range & certifications: Operating -5°C to 65°C; storage -40°C to 85°C. Certifications: CE, FCC Class B, RoHS, UKCA.

Models / Ordering (examples)

• ARS101-W880 — part number 770-ARS1011-000G: Rear I/O: 1x DP, 1x HDMI, 2x LAN, 5x USB 3.2 Gen2, 1x USB Type-C; Internal I/O: eDP, M.2 M/B/E/A, 4x USB2.0, TPM; DC jack; Operating -5 to 65°C.
• ARS101-Q870 — part number 770-ARS1011-100G: Rear I/O: 1x DP, 1x HDMI, 2x LAN, 6x USB 3.2 Gen2; Internal I/O: eDP, M.2 M/B/E/A, 4x USB2.0, TPM; DC jack; Operating -5 to 65°C.
• ARS101-H810 — part number 770-ARS1011-200G: Rear I/O: 1x DP, 1x HDMI, 2x LAN, mixed USB Gen1/Gen2; Internal I/O: eDP, M.2 M/B/E/A, TPM; DC jack; Operating -5 to 65°C.

Technical specifications

• Form factor: Mini-ITX 170mm x 170mm.
• Processors: Intel® Core™ Ultra (Arrow Lake S) LGA 1851; typical support up to 65W TDP.
• Chipset: Intel® W880 / Q870 / H810 (feature differences by variant).
• BIOS: AMI SPI 256Mbit.
• Memory: 2x 262-pin DDR5 SODIMM, up to 96GB; ECC on W880 only; DDR5 5600/6400MHz support depending on CPU.
• Graphics: Intel® UHD Graphics 700 series — OpenGL 4.5, DirectX 12, OpenCL 2.1; HW decode/encode for common codecs.
• Display outputs & resolutions: HDMI up to 4096x2160@30Hz; DP++ up to 4096x2304@60Hz; USB Type-C up to 4096x2304@60Hz; eDP up to 4096x2160@60Hz.
• PCIe: 1x PCIe Gen5 x16 (W880/Q870 variants support lane switching; H810 fixed x16).
• M.2 slots: M.2 2280 M Key (PCIe Gen4 x4 or SATA), M.2 B Key 2242/3042/3052, M.2 E Key 2230, M.2 A Key 3030 (availability by SKU).
• Storage: 2x SATA 3.0 (6Gb/s) plus 2x SATA power; RAID 0/1/5/10 supported with proper M.2+SATA setup.
• Audio: Realtek ALC888 codec; front audio header; 3W L/R speaker connector.
• Ethernet: Up to 2x Intel® I226 2.5GbE ports (model dependent).
• USB & serial: Rear USB up to 6x USB 3.2 Gen2 (or 5x + 1x USB Type-C Gen2x2 on some SKUs); internal USB 2.0 headers; 2x RS-232/422/485.
• DIO / SMBus / Watchdog: 1x 8-bit DIO; 1x SMBus; programmable watchdog 1–255s.
• Security: Nuvoton TPM 2.0; optional management features (EXT-OOB, CNVi, vPro) on supported SKUs.
• Power: ARS101 — single 12V ±5% DC-in jack; ARS103 — wide 12~28V input; connector styles by request.
• RTC battery: CR2032 coin cell.
• OS support: Windows 10/11 IoT Enterprise LTSC (64-bit), Ubuntu 24.04.
• Environment: Operating -5°C to 65°C; storage -40°C to 85°C; humidity 5%–90% RH.
• Dimensions & mechanical: Mini-ITX 170 x 170 mm; board height per configuration.
• Certifications: CE, FCC Class B, RoHS, UKCA.
• Country of origin: Taiwan.