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TWB-3520 – Waterproof Fanless Core i7 Box PC


  • Intel Core i7-3517UE 1.7GHz
  • Fully Waterproof NEMA 4X (IP65) PC
  • Ultra-Compact Size with Fanless Design
  • Support mSATA SSD and Micro SD Card
  • One Mini-PCIe Socket Expansion
  • 9~36V DC with Isolation

This industrial and fully waterproof fanless computer can be used in a wide variety of applications that require rugged and compact computer design. The waterproof design of the TWB-3520 is both cost-effective and space-saving while being a fully fanless box pc which makes it an ideal solution for embedded systems. This fanless and noiseless Box PC is constructed out of rugged aluminum housing which acts as a heatsink for maintenance-free cooling. It is powered by an Intel® Core i7-3517UE 1.7GHz processor. The TWB-3520 can be equipped with up to 8GB DDR3 RAM and is suitable for wall mounting through the included wall mount kit. This waterproof Box PC features one Mini PCIe slot that allows for utilization of Wi-Fi or 3G/4Gmodules. Contact Us for a TWB-3520 quotation.


Primary Components

Processor Family Intel Core I series 3rd Generation Ivy Bridge
Processor Model Core i7-3517UE
Processor Speed 1.7 GHz
Memory Type 1x DDR3L SO-DIMM
Memory Support 2GB, 4GB, 8GB
Storage type mSATA
Storage support 32GB-512GB

External I/O ports

USB 2x USB 2.0
Serial / Com 2x COM
Serial Protocol Detail 1x RS-232, 1x RS-422/485
Ethernet / LAN 2x RJ45 GbE LAN
Video Outputs 1x DVI
Other Ports 1x 8 Channels GPIO / CAN Bus (Optional)
Power Input Port M12 type 3-PIN DC-in


Input Voltage Range 9-36V DC

Operating Systems

Windows Windows 10 IoT, Windows 8.1 Pro, Windows 7 Pro

Expansion Slots

Internal Mini PCIe 1x Mini-PCIe

Thermal and Environmental

Operating Temperature -20°C – 60°C
(-4°F – 140°F)
Humidity Range 5% – 95% Non-condensing
Cooling Solution Passive – Fanless


Material Aluminum
IP Rating IP65
Color Silver

Dimensions / Weight

Weight 3.2 KG (7.1 lbs)
Dimensions 261 x 168 x 51 mm (10.3 x 6.6 x 2.0 in)


Warranty Up to 5 Years