Pegasus Astro Ultimate Powerbox v2
Pegasus Astro Ultimate Powerbox v2Pegasus Astro Ultimate Powerbox v2Pegasus Astro Ultimate Powerbox v2Pegasus Astro Ultimate Powerbox v2

Pegasus Astro Ultimate Powerbox v2

£540.00✓ 2 year warranty


Unavailable please contact us

About this product

Model:  peg_upbv2
Part Number:  PEG-UPBV2

Discontinued. A V3 is scheduled for release in Spring. 

The Ultimate Powerbox v2 (UPBv2 in short) is the flagship of our Powerbox series. You asked for more features, Pegaus Astro kept their promise:

A USB3.1 Hub allows you to switch on/off each USB port, more power outputs, more dew heaters, a new stepper controller that can drive any stepper motor in the astronomy market as well as an expansion port for devices that communicates with the UPBv2 Controller!

If you are tired of carrying multiple power packs and dealing with a mess of power and data cables, our Ultimate Powerbox v2, a sophisticated power control unit, is the “Ultimate” solution. Our idea is an enclosure that makes a sufficient number of amperes available.

No cables disturb the movements of the mount and the instrument, only the main power cord and one USB data cord are attached to the Ultimate Powerbox from which branch off the other cables powering all devices.


  • 4 x 12V Smart Outputs
  • 3 x PWM duty cycle channels for Dew Heaters / Flatpanel / Fans
  • USB3.1 SuperSpeed, 5 Gbit/s Industrial Grade Powered Hub
  • Includes 4 x USB3.1 and 2 x USB2 available ports (6 USB ports in total)
  • Stepper Motor Controller (Can drive nearly any stepper motor in the astro -market Unipolar or Bipolar)
  • Variable / Software Configured 3-12V / Regulated Output of 3Amps
  • 12V / Always ON Output for your mini PC
  • Environmental & Power readings
  • In a compact size with plenty of features!

Industrial 6 port powered USB3.1 SuperSpeed Hub

An industrial-grade USB3.1 Hub controller ensures that this USB hub will work flawlessly from temperatures of -40°C to +80°C.

A neat feature is that each USB port can be switched ON/OFF individually by the software. A device was stuck and you had to replug the socket in the middle of a cold night? No problem! Just locate the port, click the ON /OFF switch in our software and you recycle the USB port. Simple as that!

At the back of the UPBv2 you can locate:

  • 4 x USB 3.1 Super Speed ports
  • 2 x USB 2 High Speed ports

Each USB port provides up to 2.5Amps. All USB ports include an electronic short circuit and overload electronic protection.

4 x 12V DC Power outlets for your equipment

Four powerful Smart Mosfet transistors provide “electric juice” to your precious equipment. Sophisticated short circuit and overload per port protections cut the power and report the incident into our software. Every Mosfet is capable to provide up to 7Amps of current.

Metal & good quality output sockets ensure that will provide all the juice you need and can secure in place your extension power cables

Built-in Power Sensors

A precise voltmeter and an amp meter (can measure up to 20A) measure and display in real-time your power input. If the input is more than 14.5V the power is instantly cut off to protect your equipment.

Individual Current Meter per 12V port and Dew Heaters

Every 12V output and every Dew Heater Channel has an internal and independent digital current meter. You can view each port’s power consumption in the software.

Embedded Stepper Motor Controller

A stepper motor controller will precisely move your focuser. The controller drives a Pegasus Motor or any other stepper motor in the market (Unipolar or Bipolar) e.g. Rigel, Robofocus, Moonlight Motor.

Backlash compensation is already implemented in the firmware and can be enabled, tuned and disabled from the software. A fully ASCOM6 focuser driver is already available.

Supported Stepper Motors

Make sure you have the correct cable for your motor. Every manufacturer uses its own pinout. Contact us if you have any question for the type of your motor.

Pegasus Motor Focus Kit (v1/v2) Requires RJ45 to RJ45 common straight network cable
Robofocus Ask for cable: PEG-CMOT-RJ45DB9
Moonlite Ask for cable: PEG-CMOT-RJ45DB9
Lakeside Ask for cable: PEG-CMOT-RJ45DB9
Starlight HSM 20,30,35 Ask for cable: PEG-CMOT-HSM
Starlight MSM 20,30,35 Ask for cable: PEG-CMOT-MSM
Starlight  DirectSync motors Ask for cable: PEG-CMOT-HSM
Starizona Microtouch Ask for cable: PEG-CMOT-MSM
Optec DirectSync or Quicksync motors Ask for cable: PEG-CMOT-HSM
Rigel nStep motor Ask for cable: PEG-CMOT-MSM
Starlight POSI Drive Motor Ask for cable: PEG-CMOT-HSM
Lacerta Motor Ask for cable: PEG-CMOT-LCRT

Supported By


Ultimate powerbox fully supports ASCOM6. In combination with our Unity Software which acts as a server, you can use our latest ASCOM 6 supplied drivers to:

  • Control Stepper Motor (ASCOM Focuser)
  • Pass environmental settings to supported software (e.g Sequence Generator Pro / MaximDL /NINA ) (ASCOM ObservingConditions)
  • Switch ON or OFF all 12V outputs or USB Ports (ASCOM Switches – NINA/ MaximDL)


Ultimate Powerbox v2 is fully supported by INDI and INDIGO



TheSkyX native plugin support

A multi platform plugin for OSX (macOS), Windows, Linux (Ubuntu) and Raspberry PI is available.

For more information visit RTI-ZONE website (3rd party plugin).

Native Support at N.I.N.A.

Thanks to NINA developers the Ultimate Powerbox v2 is fully supported via native drivers

Other Key Features

Zoomable and Exportable Graphs

Software logs all voltage, current, temperature and relative humidity readings. All these plots are zoomable and easily exportable in PNG image & CSV text format. Keep a full record of your night conditions.

Scheduler to control outputs

Enable or disable each Power or USB port by setting a timer and creating groups of ports

Memory persistence outputs on startups

You can easily define which output (power or USB) should turn ON or remain OFF during startup. The settings are stored in system’s EEPROM memory.

Auto Adjustment of PWM (Dew Outputs)

Device can auto adjust the Heater Outputs by consulting the environmental sensor and calculate the Dew Point. Just click “Auto” and leave to Ultimate Powerbox v2 to decide if it is time to switch on your dew heaters.

* You can easily select which Dew Heater output is controlled by the “Auto Dew” function.

Reverse Polarity Protection

Ultimate Powerbox has been designing with reverse voltage polarity protection. It will save your night if you accidentally connect the main power supply in reverse polarity!

A hardware watchdog

A hardware watchdog resets the device if for any reason there is no response from the controller for two seconds. A neat feature in the unlikely event of a controller freeze – when you have a remote observatory and you need to be certain that everything works as expected.

Upgradable Firmware

The firmware supports re-programming via the USB connection using upgrade software ((only available for Windows), for future upgrades which may become available. We constantly receive feedback from our customers and keep updating the firmware and software with new features.

Unity Platform Support

Pegasus Astro Unity Platform is their new all around application. Our goal is to provide a robust and modern application that is going to support current and future products under one roof.

A modern frontend allows the full control of all Pegasus Astro devices.

Moreover, a REST JSON api helps developers from 3rd party software to interact with our products.

What's in the box

  • Ultimate Powerbox v2 Enclosure
  • Temperature / Humidity Sensor
  • 4x 1m 2.1mm Male to 2.1mm Male Power Cables
  • 1.8m USB3 Cable


Supply Voltage: 12V-14V DC (Reverse Polarity Protected)
Power Input Connector XT60 Female
Connectivity USB3 – Type B USB Connector
4 x 12V Outputs Maximum Current 6.5A each.
2.1mm Center Positive
Sense/ Ampmeter in each port
Software: ON/OFF
3 Channel x 12V PWM Outputs Maximum Current 6.5A each,
Sense/ Ampmeter in each port
Blue Coloured RCA Connector,
Pulse Width Modulated (Suitable for Dew Heaters / Fans / Flatpanel)
Software: Duty Cycle % / OFF
1 x Variable Output Adjustable via software. 3-12V / 3Amps
1 x Always ON 12V Output 12V passthrough / Always ON / 8 Amps
Stock Sensor Input / EXT 0-100% humidity readings with 2-5% accuracy
-40 to 80°C temperature readings ±0.5°C accuracy
Ampmeter Measures 0 – 30A
Voltmeter Measures 5 – 15V
Superspeed (USB3.1) Industrial 6 port powered Hub Industrial Grade: Temperature range -40°C to +80°C
4 x SuperSpeed (USB3.1) ports (backwards compatible with USB2)
2 x High Speed (USB2)  ports
USB Ports can be switched ON/OFF on demand via software (data + power)
Each USB port can deliver up to 2.2Amps
Stepper Motor Controller Unipolar and Bipolar Stepper motors, max 2.4 Amps (1.2 Amps per phase) – RJ45 socket
Dimensions 135mm x 107mm x 30mm (new enclosure 2020)
Weight 400 grams (14.1 ounces)

Downloads / Manuals

The following manuals and downloads are available for this product:


Quick Installation Guide

Product Manual (updated May/22)

Installation guide for Pair of UPBv2 Dovetail Brackets

Installation guide for Small Factor PC Top Plate

Enclosure 2020 Installation Guide


Unity Platform

AstroImager from CloudMakers – 3rd party software for OSX

TheSkyX Pro X2 Plugin for Windows / OSX / Linux


PyUPB (automation python scripts by by Hans Kostense)

Serial Command Table (Feb/21)

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