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Pegasus Astro Ultimate Powerbox (UPB) v3
Pegasus Astro Ultimate Powerbox (UPB) v3
Pegasus Astro Ultimate Powerbox (UPB) v3
Pegasus Astro Ultimate Powerbox (UPB) v3

Pegasus Astro Ultimate Powerbox (UPB) v3

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Pegasus Astro

Pegasus Astro Ultimate Powerbox V3

Expected January! Pre-order now for earliest delivery!

(UPBv3 in short) is the flagship of our Powerbox series. You asked for more features in the same size, we kept our promise:

UPBv3 is a Wi-Fi and USB controlled power hub. A USB 3.1 Hub allows you to switch on/off 8 USB ports, 8 12V power outlets, 2 x Adjustable outputs (3-12V and 12-24V), 3 dew heaters, a new silent low-vibration stepper controller that can drive any stepper motor in the astronomy market as well as a power relay and an expansion port for devices that communicates with the UPBv3 Controller!

If you are tired of carrying multiple power packs and dealing with a mess of power and data cables, our Ultimate Powerbox v3, 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 which branches off the other cables powering all devices.

A quick glance:

  • Up to 12V / 20Amps of provided electric current (240W).
  • 6 x 12V smart and individual switcable outputs. Each output can be configured as constant 12V or pulse width modulated driven).
  • Wi-Fi or USB Controllable Operation.
  • 2 x 12V / Always ON Outputs.
  • 3 x Dew Heaters Outputs.
  • (Automatic Adjustable with AutoDew feature)
  • 1 x Adjustable Power Output 3-12V -Regulated Output of 3Amps
  • 1 x Adjustable Power Output 12-24V – Regulated Output of 4 Amps
  • 1 x Power Relay switch 250V/10A
  • 6 x USB3.1 (backwards compatible with USB2) and 2 x USB2 available ports (8 USB ports in total). Individual switchable via software.
  • Stepper Motor Controller (Silend and low vibrating stepper controller. Can drive nearly any stepper motor in the astro -market up to 2Amps per coil).
  • Physical push-button to control one function (e.g turn ON / OFF outputs). Functionality is configurable in software.
  • Built-in ambient temperature and humidity sensor.
  • Power readings (Input Voltage, Current, Current per port).
  • Vesa compatible size enclosure.
  • 8 x Powered. Switchable USB Ports
  • 8 x 12V DC Power Outlets
  • Embedded Stepper Motor Controller

In total 8 USB ports powered – USB 3.1 SuperSpeed Hub

A 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!

The UPBv3 has:

  • 6 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 , additional Electrostatic Discharge (ESD) and overload electronic protections.

6 x 12V DC Power outlets for your equipment

Six 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 6 Amps of current.

Metal premium 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 smart outputs.
Each smart 12V output has an internal and independent digital current meter. You can view each port’s power consumption in the software.

Additional Power Outputs and Sensors

  • 2 x Always ON 12V outputs increase the total 12V outputs to 10. In combination with the 2 x adjustable outputs (if configured to 12V) the total 12V outputs can be summed to 10 Outlets.
  • 1 x Adjustable Voltage Step Down output can be regulated from 3V ro 12V of and provide up to 3 Amps.
  • 1 x Adjustable Voltage Step Up output can be regulated from 12V to 24V and provide up to 4 Amps.
  • 1 x Switch Relay can pass 250V / 10A and used to switch ON/OFF any 3rd party equipment.
  • A built-in ambient temperature and relative humidity sensor provides frequently readouts of the environmental conditions and automatically adjusts the heat intensity of your Dew strips.

Embedded Stepper Motor Controller

A silent and low vibrating stepper motor controller will precisely move your drawtube of your focuser. The controller drives a Pegasus Motor Focus Kit or any other stepper motor in the market (Unipolar or Bipolar) e.g. Rigel, Robofocus, Moonlight, Starlight motors.

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

Vesa compatible enclosure

The UPBv3 enclosure is compatible with VESA mounts. Available screw holes allow an e.g. Intel NUC to be stacked up with the Ultimate Powerbox v3.

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 v3 is fully supported by INDI and INDIGO

Indigo: http://www.indigo-astronomy.org
Indilib: https://indilib.org/devices/auxiliary/pegasus-ultimate-power-box.html




The Ultimate Powerbox v3 is fully supported at NINA.


Specifications: Pegasus Astro Ultimate Powerbox (UPB) v3

Supply Voltage:

12V-14V DC (Reverse Polarity Protected)

Power Input Connector

XT60 Female


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


Measures 0 – 30A


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


135mm x 107mm x 30mm (new enclosure 2020)


400 grams (14.1 ounces)

What's in the Box

What's in the Box: Pegasus Astro Ultimate Powerbox (UPB) v3

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In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.

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