The ASUS PRIME J4005I-C is a low-power, fanless motherboard designed for the Intel Celeron J4005 SoC processor. It features the integrated Intel Celeron dual-core processor with a base frequency of 2.0GHz (burst up to 2.7GHz) in a compact Mini-ITX form factor. The motherboard supports dual-channel DDR4 memory with speeds of 2400/2133 MHz across two DIMM slots, with a maximum capacity of 8GB. For display output, it provides HDMI 1.4b and D-Sub ports, along with LVDS support for panel conNECtivity. Storage options include 2x SATA 6Gbps ports and 1x M.2 slot (Key E) for WiFi expansion. The board features ASUS 5X Protection II technology for enhanced durability, including surge protection, overvoltage protection, and stainless steel I/O shield. Networking is supported through Realtek Gigabit LAN, while expansion options include 1x PCIe 2.0 x1 slot. Additional features include 4x USB 3.1 Gen1 ports (2 rear, 2 via header), 2x USB 2.0 ports (via header), and 8-channel HD audio with premium audio capacitors. The fanless design makes it ideal for industrial and embedded applications requiring silent operation.