Axiomtek CAPA520 3.5" SBCs with LGA1151 Socket for 9th and 8th Gen Intel Core

Many 3.5 inch boards fix the processor at build, which suits a single product but not a range that runs from an entry model to a high-end one. The Axiomtek CAPA520 series takes a different route: a 3.5 inch SBC with an LGA1151 socket, so a Celeron, Pentium or Core i7 can be fitted to the same board and enclosure, with the Intel H310 or Q370 chipset behind it.

Every CAPA520 shares the same layout. The socket takes 9th or 8th Gen Intel Core i7, i5 or i3, Pentium and Celeron processors with a TDP of up to 35 W. One DDR4-2666 SO-DIMM socket takes up to 16 GB. Intel integrated graphics share system memory and drive one DisplayPort, one HDMI output and an 18/24-bit single or dual-channel LVDS header for triple-view output. Storage runs from two SATA-600 ports, with mSATA available through the full-size PCI Express Mini Card slot, and a ZIO connector carries one PCIe x1 lane, USB, LPC and SMBus. I/O covers three USB 3.2 and three USB 2.0 ports, one RS-232/422/485 port, 8-channel programmable digital I/O and an HD audio link for the optional AX93A22 codec board. Axiomtek lists Intel AMT 12 as an option.

The variants differ in chipset and LAN count. The CAPA520PHGG-H310 is the standard build with the Intel H310 chipset and two Gigabit ports on Intel I219-LM and I210-AT controllers, and the CAPA520PHGG-Q370 keeps two ports with the Intel Q370 chipset. The CAPA520PH3G-H310 adds a third Gigabit port on a second Intel I210-AT with the H310, and the CAPA520PH3G-Q370 pairs three ports with the Q370. Axiomtek lists every code with a -ZIO suffix for the expansion connector.

Power is 12 V DC only on a 2 x 2-pin connector, with AT auto power on, and hardware monitoring reports CPU and system temperature, voltage and fan speed. A 255-level watchdog timer can reset a stalled system. Every CAPA520 operates from -20 to 60 °C at 10 to 95% humidity, non-condensing, and measures 146 x 104 mm with a 1.6 mm board thickness. COM and USB 2.0 cables are listed as accessories, and the processor, memory and storage are chosen to suit each project.