The CS86-BOX-3855U is a rugged, high-quality, multifunctional industrial PC. Thanks to the integrated brackets and its lightweight construction, it can be firmly attached to any flat surface, such as industrial cabinets or walls.

The specially designed aluminum alloy housing with fins for increased heat dissipation is a passive cooler, eliminating the need for built-in fans. The fan-less design reduces noise and maintenance costs and efforts, increasing reliability simultaneously.

Hardware description

The Intel® Celeron™ 3855U powers the CS86-BOX-3855U with 4GB RAM (1 SO-DIMM DDR4L socket supports up to 16GB) and 64GB Flash/eMMC to supply enough power and storage for any industrial application. Despite their cutting-edge performances, the offered CPUs consume very little power: their TDP is only 15W at respective base clock frequencies.

It features a broad range of connectivity options, including four USB 3.0 ports, two RJ45 LAN ports with WoL support, two 2×9-pin D-Sub connectors, which can be configured as either RS232 or RS485 communication interfaces, and one HDMI connector that supports an external HD monitor.

It supports WiFi and 4G/LTE modules with antennas but are not mounted by default. They are optional and can be added during the ordering process.

The CS86-BOX Industrial BOX PC supports a wide range of input voltages from 12V to 24V DC. The power input section features a range of protection features, including over-current, over-voltage, power surge, and reverse polarity protection, allowing it to meet stringent industrial safety regulations.

Weight 2900 g
Dimensions 249.2 × 152 × 34 mm
Net weight

1300 g




INTEL: Celeron 3855U


Default 4GB (1 x SO-DIMM DDR4 2133MHz Max 16GB)


32 GB mSATA SSD (supports up to 512GB) + SATA interface


Intel Core Graphics Card (shared memory)




4x USB 3.0 HOST


Default 2*RS232 Channel(2*RS485 Optional)


2xRJ-45, 1 Gbps, support Wake on LAN

Expansion connector

Mini PCI-E

Power Input

12-24V DC

Power Consumption


Working Temperature

-20℃ ~ 60℃


Ubuntu 20.04, Windows 7, Windows 10



Performances and reliability

Intel® Celeron™ 3855U with 2 CPU cores and 2 MB of level 3 cache power the CS86-BOX-3855U. The cores runs at 1.6 GHz. The 3855U integrates HD 510 graphics unit, clocked at 300 MHz, with a maximum graphics boost frequency of 900 MHz. Connectivity options include PCI-Express 2.0, SATA, USB and several other I/O interfaces.

Multiple OS choices

The CS86-BOX-3855U is shipped with Ubuntu 20.04 pre-installed but offers the flexibility to opt for Windows 7 or Windows 10 through a simple selection in the drop-down menu during purchase. Please note that opting for Windows 7 and Windows 10 will incur an additional charge of $40 and $50 respectively.

Documentation and Downloads

Hardware Documentation

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SKU: CS86-BOX-3855U

Price: $199.00$249.00

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