Intel Coffee Lake appears on 3.5-inch SBC
Oct 1, 2018 — by Eric Brown 2,441 viewsAvalue announced a Linux-friendly 3.5-inch “ECM-CFS” SBC with a choice of Intel’s 8th Gen “Coffee Lake” S-series processors plus triple display support, 2x GbE, 4x USB 3.1, 2x SATA, and mSATA.
Avalue’s ECM-CFS is the first 3.5-inch board we’ve seen to feature Intel’s 8th Gen “Coffee Lake” processors, although Seco offers a 3.5-inch CCOMe-C30 carrier board for its 8th Gen COMe-C08-BT6 module. The 146 x 101mm, 0 to 60°C range board is designed for retail, automation, vending machine, POS/kiosk, signage, and industrial transportation applications.


ECM-CFS (left) and second wave of Intel 8th Gen Core S-series CPUs including low-power “T” models
(click images to enlarge)
The ECM-CFS has a lot in common with Avalue’s 6th Gen “Skylake” based ECM-SKLH 3.5-incher. It lacks that model’s M.2 slot and VGA header, but in addition to providing a faster processor, it bumps USB support up to the faster USB 3.1.
The ECM-CFS runs Linux or Windows 10 on the low-power, 35W TDP “T” versions of Intel’s Coffee Lake S-series, including an up to 4GHz Core i7-8700T with 6x 14nm Coffee Lake cores and 12x threads. You also get the dual-core, quad-threaded Pentium Gold G5400T G-series CPU, which is available on IEI’s recently announced KINO-DH310 Mini-ITX board, as well as a related dual-core, dual-threaded Celeron Gold G4900T. The maximum clock rates listed by Avalue for these chips are lower than maximum Turbo Boost rates listed by Intel, but higher than their base frequencies.
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The processors come with a choice of the high-end Intel Q370 or lower end Intel H310 I/O chipsets. This affects whether the four USB 3.1 ports are Gen3 or Gen2, respectively, or whether the single mini-PCIe slots supports PCIe signals in addition to mSATA.


ECM-CFS, front and back
(click images to enlarge)
Like the ECM-SKLH, the ECM-CFS supports up to 16GB DDR4 and offers dual SATA III slots in addition to the mSATA-enabled mini-PCIe interface. Once again, triple displays are supported via two 4K ready HDMI ports and an LVDS connection.
The ECM-SKLH is further equipped with dual Gigabit Ethernet ports, 8-bit GPIO, LPC, SPI, audio jacks, and pair of serial connections, one of which has a DB9 port. The 12V board also offers a watchdog, hardware monitoring, and optional TPM.

ECM-CFS portside view
(click image to enlarge)
Specifications listed for the ECM-CFS include:
- Processor — Intel 8th Gen “Coffee Lake” Core S-series (low power “T”) and Celeron/Pentium G-series with Intel Q370 or H310 chipset and Intel HD Graphics Gen9:
- Core i7-8700T — 6x core/12x thread @ up to 4GHz; 12MB cache; 35W TDP; Intel UHD Graphics 630
- Core i7-8500T — 6x core/6x thread @ up to 3.5GHz; 9MB cache; 35W TDP; Intel UHD Graphics 630
- Core i7-8100T — 4x core/4x thread @ up to 3.1GHz; 6MB cache; 35W TDP; Intel UHD Graphics 630
- Pentium Gold G5400T — 2x core/4x thread @ up to 3.1GHz; 4MB cache; 35W TDP; Intel UHD Graphics 610
- Celeron Gold G4900T — 2x core/2x thread @ up to 2.9GHz; 2MB cache; 35W TDP; Intel UHD Graphics 610
- Memory — Up to 16GB DDR4 (2400MHz/2666MHz) via 1x SODIMM
- Storage — 2x SATA 3.0; mSATA via mini-PCIe
- Display/media:
- 2x HDMI ports at up to 4096 x 2304@ 30Hz
- LVDS (18/24-bit, dual channel) at up to 1920 x 1080 @ 60Hz
- Triple-display support
- Audio mic-in/line-in and line-out jacks (Realtek ALC892)
- Networking — 2x Gigabit Ethernet ports (Intel I211AT and 1219LM)
- Other I/O:
- 4x USB 3.1 ports (Gen 2 with Q370 chipset, Gen1 with H310)
- 2x USB 2.0 headers
- 2x RS-232 (port and header)
- 8-bit GPIO
- LPC, SPI
- Expansion — Mini-PCIe slot (mSATA/PCIe with Q370, mSATA only with H310)
- Other features — Watchdog; HW monitoring; 2x LEDs; optional TPM 2.0
- Power — 12V DC ATX; ACPI 3.1
- Operating temperatures — 0 to 60°C
- Dimensions — 146 x 101mm (“3.5-inch form factor”)
- Operating system — Linux; Windows 10
Further information
The ECM-CFS is “coming soon” at an undisclosed price. More information may be found in Avalue’s ECM-CFS announcement and product page.
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