ASRock Industrial iBOX Ultra 300 Series Intel Core Ultra Series 3 Fanless Industrial NUCs with USB4 and Dual 2.5GbE

A fan is often the first part to fail in a dusty kiosk or a sealed signage enclosure, and replacing it means a site visit. The ASRock Industrial iBOX Ultra 300 series avoids that with a finned aluminium housing and no fan, while bringing Intel Core Ultra Series 3 (Panther Lake-H) processors, USB4 and PCIe Gen5 storage to a small industrial NUC. The result is a fanless NUC that keeps current graphics and I/O in installs where moving parts are unwelcome.

Every iBOX Ultra 300 model shares the same design decisions. Two SO-DIMM sockets take dual-channel DDR5 up to 128 GB, with In-Band ECC supported on every processor. Storage sits on two M.2 M key sockets, a four-lane PCIe Gen5 socket for 2242 or 2280 drives and a four-lane PCIe Gen4 socket for 2242 drives, with Intel VMD RAID 0/1 across them. Two HDMI 2.1 outputs at up to 8K, DisplayPort 2.1 over USB4/Thunderbolt 4 and DisplayPort 1.4a over a second USB-C port give four independent displays. Dual Intel 2.5GbE (I226LM and I226V), three USB 3.2 Gen2 Type-A, two USB 2.0, an RS-232/422/485 COM port and an M.2 E key socket for optional Wi-Fi round out the I/O, with optional out-of-band remote power control.

The range splits by processor. The iBOX-358H carries the Core Ultra X7 358H, a 16-core processor with Intel Arc B390 graphics and DDR5 7200 memory, for graphics-heavy signage and edge AI vision. The iBOX-325 carries the Core Ultra 5 325, an eight-core processor with Intel Graphics (Xe3) and DDR5 6400, for kiosks, signage players and automation cells where the I/O matters more than peak graphics.

In practice the iBOX Ultra 300 series suits retail and kiosk installs, digital signage, automation and edge AI. Both models are rated from -20 °C to 50 °C with 0.5 to 0.8 m/s airflow, store from -40 °C to 85 °C, run from 12 to 24 V DC with AT or ATX power-on, and carry CE and FCC marks. VESA, wall and DIN rail mounting are supported, Windows 11 and Linux are supported, and security uses firmware TPM (Intel PTT). These fanless industrial NUCs give a quiet, low-maintenance option for current Intel Core Ultra processing at the edge.