Little-bitty Ubuntu mini-PC takes quad-core Atom to extremes
Apr 12, 2016 — by Eric Brown 5,035 viewsStealth.com has launched a tiny, Ubuntu-ready “LPC-175F” mini-PC with a quad-core Atom E3845, dual GbE ports, and -20 to 70°C support.
The 145 x 84 x 35mm LPC-175F is one of the smallest mini-PCs ever built by Stealth.com. By comparison, its 250 x 146 x 42mm and up, Intel 3rd Gen. Core based LPC480x mini-PC series seems more like a maxi-PC series.


LPC-175F
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The LPC-175F is also the smallest Atom E3845 based mini-PC we’ve covered. The rugged models among them include Adlink’s 210 x 170 x 70mm Matrix MXE-1400, Axiomtek’s 200 x 120 x 56mm eBOX620-841-FL, VIA’s 185 x 162 x 44.4mm VIA Artigo A1300, and the 203.2 x 127 x 63.5mm SYS-405Q from WinSystems.
The fanless, aluminum chassis LPC-175F runs Ubuntu Linux or Windows on a 1.91GHz, quad-core Atom E3845 SoC, with a lower power consumption than the LPC480x. Stealth.com doesn’t say how low, but the 22nm Bay Trail chip itself has a 10W TDP. The LPC-175F also offers a wider, -20 to 70°C temperature range. The computer is aimed at rugged applications including embedded control, digital signage, interactive kiosks, thin clients, and HMI devices.

LPC-175F rear panel detail view
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The base price, which is $1,095 with Windows 7, but only $1,000 with Ubuntu, includes 4GB of DDR3L RAM and a 64GB mSATA SSD via one of the two mini-PCIe interfaces. You get two GbE ports, plus an optional 802.11ac/Bluetooth module that uses up the second mini-PCIe slot. Other features include VGA, serial, and dual USB 2.0 ports, all available via the back panel.

LPC-175F dimensional drawings showing antenna
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Specifications listed for the LPC-175F include:
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- Processor — Intel Atom E3845 (4x 22nm Bay Trail cores @ 1.91GHz); 10W TDP
- Memory — 4GB DDR3L (1333MHz)
- Storage — 64GB or 128GB mSATA SSD (via mini-PCIe full-size); optional ext. optical drive ($99)
- Display — VGA port, at up to 1920 x 1200
- Wireless — Optional 802.11 ac/a/b/g/n (dual-band 2.4GHz/5GHz) with Bluetooth via mini-PCIe-based Intel AC 7260 module with ext. antenna
- Networking — 2x Gigabit Ethernet ports (Intel I210)
- Other I/O:
- 2x USB 2.0 ports
- RS232 COM port
- Expansion — 2x mini-PCIe (1x full-size PCIe/mSATA/USB, 1x half-size PCIe/USB)
- Power — 12VDC input jack with ext. AC adapter; optional remote power switch ($100); ACPI compliant, OS-direct power management
- Operating temperature — -20 to 70°C
- Dimensions — 145 x 84 x 35mm (5.7 x 3.3 x 1.37 in.)
- Weight — 0.54 k + 0.34 k for power supply
- Operating system — Ubuntu; Windows 7/8/8.1/10
Other rugged, Ubuntu-ready Stealth.com mini-PCs include the fan-equipped, 166 x 157.5 x 48mm LPC-681, which costs twice as much as the LPC-175F, but offers a more powerful 4th Gen “Haswell” Core i7 CPU.


Haswell-based LPC-681 (left) and Pineview-based WPC-525F
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There’s also an older, much larger, waterproof WPC-525F mini-PC with an old-school, dual-core “Pineview” Atom D525 processor. Stealth.com also offers several other older, Ubuntu-friendly mini-PC designs introduced back when it was called Stealth Computer.
Further information
The LPC-175F is available now for $1,000 with Ubuntu, 4GB of DDR3L RAM, and a 64GB mSATA SSD, or $1,085 with a wireless module with WiFi-ac and Bluetooth. More information may be found at the Stealth.com LPC-175F product page.
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