Configurable Relio R3 Industrial 3U Rackmount Computer

Part: R3-Config   Model: Relio R3

CPU Speed *

Memory *

Solid-State Drive Integration

Operating System Integration


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The Relio R3 is a solid-state 3U rackmount computer designed for applications requiring high reliability, maximum I/O expansion, scalable processing and a long product life cycle.

Building on the advantages of COM Express architecture, the R3 features an Intel Atom® N2800 1.8GHz dual-core processor with 4GB RAM. The system requires low power consumption while operating fanless over a wide operating temperature range of 0-50C. Standard features include dual Gigabit Ethernet, four SeaLATCH locking USB 2.0 ports, three serial ports, DisplayPort video and audio interfaces. The system includes a 7” LCD touchscreen on the front panel for a convenient operator interface.

With a total of 18 SeaRAQ™ I/O expansion slots, the R3 offers unprecedented expansion capabilities supporting a variety of real-world analog I/O configurations such as A/D inputs, 4-20mA outputs, 0-20mA inputs, thermocouples and RTD inputs. Optically isolated inputs, relay outputs and additional serial interfaces are also available. The system offers one PCI Express slot compatible with any half-length PCIe x1 board.

The Relio R3 operates from your choice of 2.5″ SATA solid-state disk (SSD) that can be integrated and preloaded with Microsoft Windows or Linux 32-bit operating systems. Operating from solid-state disk, the system is perfect for industrial and commercial rackmount environments including process control, test & measurement and HMI applications.

Extended temperature range and other options are available. If you have application specific requirements, call today to discuss a Sealevel custom COM Express solution.

Additional information

Max Video

1920×1200 @ 60Hz, QXGA 2048×1536 @ 60Hz, WUXGA 1920×1200 @ 60Hz

Humidity Range

10 – 90% Relative Humidity, Non-Condensing


Intel NM10 Express, Intel QM77 Express


Intel Atom N2800 1.8GHz Dual-Core


19.0" (L) x 8.0" (W) x 5.2" (H)

Display Support

DisplayPort 1.1

Expansion Slots

18 I/O Slots, One PCI Express x1 Slot, 18 SeaRAQ I/O SlotsOne PCI Express x1 SlotOne PCI Express Half-Size Mini Card for Optional Wireless or Other Capabilities

Extended Temperature

Call for Options


4GB DDR3 1066MHz via 204-pin SODIMM Slot

USB 2.0 Ports

Four SeaLATCH Locking USB


AMI Aptio EFI with CMOS Backup in 16MB SPI Flash, AMI Aptio UEFI



Operating Temperature

0 – +50C

Power Requirement

18-36 VDC (Max. 120W)

Serial Ports

Two RS-232, One RS-485

Storage Temperature

-20 – +80C


Dual Gigabit Ethernet

System Features

  • 3U rackmount enclosure with powder-coated finish
  • Silent solid-state design with no fans or other moving parts
  • Wide temperature operation from 0-50C ambient
  • COM Express Type 6 Module supports Intel dual-core Atom processors
  • Up to 4GB DDR3 RAM
  • Internal 2.5″ drive bay is perfect for optional solid-state disk (SSD) applications
  • Integrated graphics supporting DirectX and OpenGL 3.x
  • Eighteen expansion slots for optional analog, digital and serial I/O
  • One PCI Express x1 half-length expansion slot
  • Supports ACPI power management

Enclosure Front

  • Integrated 7” LCD touchscreen operator interface
  • Stereo audio line-in and line-out via standard 1/8″ speaker connectors
  • Two SeaLATCH locking USB 2.0 ports
  • LED status indicators for power and disk activity
  • On/Off power switch

Enclosure Rear

  • Eighteen I/O expansion slots for optional analog, digital and serial I/O
  • One PCI Express half-length x1 slot
  • Two 10/100/1000BaseT RJ45 Gigabit Ethernet ports with status LEDs
  • Two SeaLATCH locking USB 2.0 ports
  • Three DB9M serial ports (COM1,2 = RS-232, COM3 = RS-485)
  • One DisplayPort 1.1 digital video connector (supports optional active analog VGA adapters)
  • 18-36 VDC power input via 4-pin removable terminal block

What’s In the Box?

  • Relio R3 rackmount computer
  • 100-240 VAC to 24 VDC @ 3.75 A, 90 Watt desktop power supply (Item# TR139), with attached Molex 39-01-2040 connector
  • NEMA 5-15P US power cord, 72 inch length (Item# CA248)
  • Optional cables and solid-state storage available as accessories


Manual: Relio R3


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