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3.5-inch SBC takes Haswell to extended temps

May 9, 2016 — by Eric Brown 1,010 views

Axiomtek’s 3.5-inch “CAPA880” SBC is built around Intel’s 4th Gen Core and Celeron CPUs, and offers mini-PCIe, SATA, and a “ZIO” I/O expansion connector.

Axiomtek’s CAPA880 offers a slightly stripped-down feature set relative to the CAPA881 single-board computer announced in February. The 146 x 104mm 3.5-inch form factor SBC similarly runs Intel’s 4th Gen Core i7/i5/i3 “Haswell” processors. Unlike the CAPA881, it focuses only on those Haswell Core and Celeron chips with LGA1150 sockets and Intel H81 chipsets.

CAPA880, front and back
(click images to enlarge)

Compared to the CAPA881, the CAPA880 lacks a CFast slot, and there’s only a single, powered RS-232/422/485 port instead of two RS-232/422/485 ports and two RS232s. There’s no mention of optional DisplayPorts, triple display support, or iAMT. The CAPA80’s operating temperature is -20 to 55°C, instead of ranging up to 70°C, as it does on the CAPA881.

Like the Atom E3800 based CAPA840, the CAPA880 features an optional multifunction “ZIO” connector that supports several optional expansion modules. This homegrown standard integrates PCIe x1, USB, LPC, and SMBus expansion buses into a single connector.


ZIO options include:

  • 4x COM ports and a mini-PCIe slot
  • 2x COM ports and 32-bit programmable DIO
  • 2x COM ports and 2x gigabit Ethernet ports

CAPA880 bare bones (left) and with fan assembly
(click images to enlarge)

Otherwise, the boards appear quite similar feature-wise, although their coastline I/O layouts differ significantly. You can load up to 8GB of DDR3-1600 RAM, and store data via a SATA 3 port. A mini-PCIe slot with mSATA is also provided. The SBC ships with dual HDMI ports, as well as VGA and LVDS interfaces.

CAPA880 detail view
(click image to enlarge)

In addition to the aforementioned serial port, you also get two USB 3.0 coastline ports. Unlike the CAPA881, two of the four USB 2.0 ports are also on the coastline.

The CAPA880 provides dual gigabit Ethernet ports with Wake-on-LAN and PXE boot. The board is further equipped with DIO, SMBus, and audio I/O.

CAPA880 rear detail view
(click image to enlarge)

The CAPA880 runs on 12V power. As with the CAPA881, no OS support is listed, but Linux should run fine.

Further information

No pricing or availability information was provided for the “coming soon” CAPA880. More information may be found on Axiomtek’s CAPA880 product page.

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