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Industrial Apollo Lake based eNUC SBC offers dual M.2 slots

Jul 23, 2018 — by Eric Brown 2,407 views

Seco opened pre-orders on its Linux-friendly SBC-B68-eNUC board with an Apollo Lake SoC, dual M.2 and GbE, triple or 4K displays, 4x USB ports, SATA, and optional -40 to 85°C support.

Seco’s Intel Apollo Lake based SBC-B68-eNUC adopts the same 4×4-inch (101.6 x 101.6mm) Embedded NUC (eNUC) form factor used in its Snapdragon 410E based SBC-B47-eNUC SBC. Other Apollo Lake eNUC boards include Portwell’s WUX-3455.

SBC-B68-eNUC from both sides
(click images to enlarge)

Whereas the Portwell product is limited to Apollo Lake Celeron and Pentium models, the SBC-B68-eNUC also supports the Atom-branded options up to a quad-core, 1.6GHz/2.0GHz Atom x7-E3950 with 12W TDP. OS support includes standard and Yocto Project based 64-bit Linux, as well as Windows 10.

Except for the greater number of USB 3.0 ports on the WUX-3455, the SBC-B68-eNUC is the more feature rich board. It supports up to 8GB of soldered LPDDR4 and offers 2x GbE ports.


For storage you get a microSD slot, a SATA interface, optional eMMC, and an M.2 B-Key slot that can load SSD, USB 3.0, PCIe x2, or cellular add-ons. The latter option is supported with a micro-SIM slot. There’s also an M.2 E-Key slot for WiFi/BT, USB 2.0, or PCIe x1.

SBC-B68-eNUC block diagram
(click image to enlarge)

Triple display support is enabled via dual, 4K ready mini-DP++ ports with HDMI support, as well as an eDP (or LVDS) interface. Audio I/O jacks and a speaker header are available. You also get 2x USB 3.0 ports, 2x USB 2.0 ports, and two more USB 2.0 headers in addition to the M.2 based USB options.

The SBC-B68-eNUC is further equipped with a serial, I2C, and GPIO headers, as well as IR, RTC, and optional TPM. The SBC is available in commercial and industrial temperature versions and offers wide-range power. Heat spreaders and a cable kit are optional.

Specifications listed for the SBC-B68-eNUC include:

  • Processor — Intel Apollo Lake Atom, Celeron, and Pentium with Intel Gen9 Graphics 500
  • Memory – Up to 8GB soldered, quad-channel LPDDR4
  • Storage/expansion:
    • MicroSD slot
    • Optional eMMC (standard SKUs include 32GB eMMC)
    • SATA M 7p connector
    • M.2 Socket 2 B-Key (3042/2260) for SSD or WWAN (cellular)
  • Networking — 2x GbE ports (Intel i21x)
  • Display/audio:
    • 2x Mini-DisplayPort++ 1.2 at up to 4096 x 2160 with opt. HDMI (3840 x 2160) via ext. adapter
    • eDP at up to 3840 x 2160 with optional adapter for LVDS at up to 1920 x 1200
    • Triple independent displays
    • Audio line-out or mic-in jacks (Cirrus Logic CS4207 codec)
    • Amplified speaker output via header
  • Other I/O:
    • 2x USB 3.0 ports
    • 2x USB 2.0 ports
    • 2x USB 2.0 headers
    • 2x RS232/RS422/RS485 headers
    • Feature connector — 2x I2C, 8x GPIO
    • Front-panel button/LED header
  • Expansion:
    • M.2 Socket 2 B-Key (3042/2260) for cellular, USB 3.0 or SSD (see storage above)
    • M.2 Socket 1 E-Key (2230) for WiFi/BT, USB 2.0
    • Micro-SIM slot
  • Other features — RTC; IR sensor; optional TPM 2.0
  • Power — 15-36VDC (18-32VDC recommended)
  • Operating temperature — 0 to 60°C or -40 to 85°C
  • Dimensions — 101.6 x 101.6mm (4×4-inch eNUC form factor)
  • Operating system — 64-bit Linux or Yocto; Windows 10 Ent. or IoT Core; Android under development

Further Information

The SBC-B68-eNUC is sampling and available for pre-order at an undisclosed price. More information may be found on Seco’s SBC-B68-eNUC product page.


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