HARDWARE / PRODUCTUpdated 22 Jul 2026

Q8 On-Board Computer

Xiphos Technologies
Q8 On-Board Computer

Flight-proven SmallSat on-board computer based on the Q8 processor, providing full spacecraft control with 120+ years of flight heritage.

Key figurescomparable across the catalogue

Mass
0.957 kg
Power
7.5 W
Largest dimension
182.6 mm

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Processor
Xilinx Zynq SoC (ARM dual-core Cortex-A9 MPCore)
Control FPGA
Microchip ProASIC3
Ram
256 MB LPDDR2 (ECC)
Storage
2x MicroSD
Serial interfaces
RS-422, RS-485, RS-232, CAN, LVDS-based protocols
Ethernet
Gigabit Ethernet
USB
USB 2.0
Dimensions
167.3 x 182.6 x 91 mm
Mass
957 g
Power (Nominal)
7.5 W
Power (Peak)
14 W
Operating temperature
-40 to +60 deg C

About

The Xiphos Q8 OBC is a complete on-board computer solution designed to meet the needs of demanding SmallSat missions, giving operators full control over all spacecraft subsystems. Built upon the proven Q8 processor board, it is backed by over 120 years of cumulative flight heritage across numerous missions and constellations.

The Q8 OBC philosophy centers on enabling the spacecraft platform design rather than constraining it. Customizable GPIO, LVDS pins, and flexible serial interface configurations allow integration with virtually any attitude control, power management, payload, or communication subsystem. The Microchip ProASIC3 supervisory FPGA handles configuration management and fault protection independently of the main processor.

The board provides a rich set of interfaces for satellite bus applications, including RS-422/485/232, CAN, LVDS-based protocols, Gigabit Ethernet, and USB 2.0. Analog inputs and PT2000 thermistor inputs enable distributed thermal monitoring across the spacecraft.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: xiphos.com ↗

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