Pegasus Astro Small Factor PC Top Plate for Ultimate Powerbox v2

Product Overview

This is the Pegasus Astro top plate that lets a small-form-factor computer mount directly onto an Ultimate Powerbox v2. It is an anodised aluminium plate that fixes to the top face of the UPBv2 and gives an Intel NUC or a similarly sized mini PC somewhere to live on the mount, next to the power and USB it already needs.

Pegasus Astro publishes an installation guide for it.

Who It's For

This is a good match if you:

• Run an on-mount control computer and want it fixed to the powerbox rather than strapped to a dovetail or hanging in a bag.
• Own an Ultimate Powerbox v2 and are consolidating the rig into one stack — power, USB hub and PC on the same block.
• Want shorter USB runs. With the PC sitting on the powerbox, the hub-to-computer link becomes a few centimetres instead of a cable down the pier.
• Are building a portable setup that has to go together the same way every night.

Key Features & Design

• Anodised aluminium plate: a machined top plate rather than a strap or bracket arrangement.
• Mounts to the UPBv2 top face: uses the powerbox's own mounting points, so the PC load is carried by the powerbox body.
• Sized for small-form-factor PCs: Intel NUC-class computers and units of similar footprint.
• Vendor installation guide: Pegasus Astro publishes fitting instructions for the plate.

Recommended Uses

• Mounting an Intel NUC or equivalent mini PC on a UPBv2 in an on-mount control setup.
• Shortening the USB run between the powerbox hub and the control computer.
• Permanent observatory rigs where the whole control stack stays assembled.
• Portable setups that benefit from the PC and powerbox travelling as one unit.

Compatibility and Accessory Notes

• Ultimate Powerbox v2 only. This plate is made for the UPBv2 (135 x 107 x 30 mm). The UPBv3 uses the Spider Clamp instead, and the Pocket Powerbox Advance has its own plate — we stock all three.
• Your PC's own mounting pattern matters. Pegasus Astro does not publish a hole pattern or plate dimensions for this part, so we cannot confirm a specific computer will line up from the published data alone.
• Pairs with the UPBv2 dovetail brackets, which carry the powerbox itself on a Losmandy or Vixen plate.
• Tell us which mini PC you have and we will check the fit with you against the vendor's installation guide before you order.

Good to Know Before You Order

• The plate is the mount, not the fastenings for your PC. Screws that fix your particular computer to the plate depend on that computer.
• Pegasus Astro publishes no weight, dimensions or hole pattern for this plate. We have left those specification rows out rather than quote figures we cannot source from the manufacturer.
• The computer's weight ends up on the powerbox. That load then sits on whatever carries the powerbox, so it is worth counting into your on-mount payload.
• It is a UPBv2 part. On a v3, the Spider Clamp does this job — get in touch and we will point you to the right one.

Frequently Asked Questions

Is it difficult to set up?

No. The plate fixes to the top of the powerbox and Pegasus Astro publishes an installation guide covering it. Fitting your computer to the plate is the second step and depends on that computer's own mounting points.

Will my Intel NUC fit?

The plate is made for NUC-class computers. Because Pegasus Astro does not publish a hole pattern, send us your exact model and we will check it with you.

Does it work with the UPBv3?

No — the v3 is a different size. The Spider Clamp is the v3 equivalent.

Can I still use the dovetail brackets with this fitted?

Yes. The brackets carry the powerbox from underneath; the plate sits on top.

Does it add any ports or power?

No. It is a mechanical plate — your PC is still powered and connected by its own leads to the powerbox.

Bottom Line

In short: an anodised aluminium plate that puts a NUC-class mini PC on top of your Ultimate Powerbox v2, so the control computer, the USB hub and the power all travel as one block on the mount.