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5.25-inch SBCs offer Kaby Lake or Skylake in S- and H-series options

Jan 15, 2018 — by Eric Brown — 734 views

Commell announced two 5.25-inch SBCs that support Intel 6th and 7th Gen S-series (LS-579) and H-series (LE-577) CPUs, providing up to 32GB DDR4, triple display support, and I/O including SATA, mini-PCIe, M.2, 4x GbE, and 6x USB 3.0 ports.

Commell’s LS-579 and LE-577 single-board computers provide Intel 6th Gen (Skylake) or 7th Gen (Kaby Lake) Core and Xeon E3-1200 processors in S-Series and H-Series models, respectively. The otherwise almost identical SBCs share the same 203 x 146mm “5.25-inch” form factor as Commell’s Apollo Lake based LE-578 SBC, which was announced in September. No OS support was listed, but Linux and Windows should be naturals here.

LS-579 (left) and LE-577
(click images to enlarge)

These are the first 5.25-inch SBCs we’ve seen that run 7th Gen Core chips, and only the second 6th Gen models after Avalue’s somewhat less feature rich EBM-SKLU. The 5.25-inch format is less popular in this age of miniaturization, but it still serves a role for those who want more ports than are available on a 3.5-inch SBC, but without the size and overhead of a Mini-ITX board such as Commell’s Skylake S-series based LV-67S.

LS-579 (left) and LE-577 block diagrams
(click images to enlarge)

The LS-579 supports 6th and 7th Gen Core i3/i5/i7 S-series models with up to 45W TDPs that fit FCLGA1151 packages. The LE-577 instead spins 6th and 7th Gen H-series models for FCBGA1440 packages, which also typically have 45W TDPs. Both SBCs also support Xeon E3-1200 v5/v6 processors.

Aside from the processors, the only difference we could find in the two boards is that the LE-577 adds a PCIe x16 expansion slot. Both models support up to 32GB DDR4 RAM, and offer 4x SATA, 2x mini-PCIe, 2x M.2 M-Key, 1x M.2 E-Key, and triple display support.

Coastline ports include a DisplayPort, 2x HDMI, 4x GbE, and 6x USB 3.0 ports. Also available are serial, GPIO, audio, PS/2, and other I/O. The boards provide 9 to 32V DC inputs, as well as commercial 0 to 60°C temperature ranges.


Specifications for the LS-579 and LE-577 include:

  • Processor — Intel 6th or 7th Gen Core i3/i5/i7 or Xeon E3-1200 v5/v6 with Intel HD Graphics: S-series/FCLGA1151 (LS-579), H-series/FCBGA1440 (LE-577)
  • Memory — Up to 32GB DDR4 1866/2133MHz (LS-579) or 2133MHz (LE-577) via 2x SODIMMs
  • Storage — 4x SATA III (6Gbps) with RAID 0, 1, 5, 10, and Intel Rapid Storage; mSATA (via mini-PCIe)
  • Display:
    • 2x HDMI ports
    • DisplayPort
    • Dual-channel, 24-bit LVDS
    • VGA (16-pin) or 2nd LVDS
    • 4K and triple display support
  • Networking — 4x GbE ports (3x Intel I210-AT, 1x Intel I219-LM); optional PoE support for up to 90W
  • Other I/O:
    • 6x USB 3.0 ports
    • 4x USB 2.0
    • 4x RS-232
    • 2x RS-232/422/485
    • Audio interface (Realtek ALC262 codec)
    • 8-bit GPIO
    • LPC, PS/2, SMBus, LCD inverter
  • Expansion:
    • 2x mini-PCIe slots (1x with mSATA)
    • 2x M.2 M-Key (PCIe NVMe, 2242/2260/2280mm)
    • M.2 E-Key (WiFi and BT, 2230m)
    • SIM slot
    • PCIe x16 (LE-577 only)
  • Other features — RTC; watchdog
  • Power — 9-30V DC 4-pin input or 24-pin ATX supply
  • Operating temperature — 0 to 60°C
  • Dimensions — 203 x 146mm (5.25-inch form factor)

Further information

No pricing or availability information was provided for the LS-579 and LE-577 SBCs. More information may be found at Commell’s LS-579 and LE-577 product pages.

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