Pegasus Astro Saddle Powerbox Puck for iOptron CEM26 and GEM28

Product Overview

This is the Pegasus Astro Saddle Powerbox puck for the iOptron CEM26 and GEM28. The Saddle Powerbox bolts straight onto an NYX-101 with no extra hardware; on every other mount it needs a puck cut for that mount's saddle interface, and this one covers both iOptron models.

It is a mechanical adapter. It carries the Saddle Powerbox — it does not add or change anything electrical.

Who It's For

This is a good match if you:

• Own a Saddle Powerbox and a CEM26 or GEM28 and need the part that joins the two.
• Run a portable iOptron rig where a single 12 V feed to the saddle replaces a handful of separate leads down to the tripod.
• Are moving a Saddle Powerbox between mounts and want a puck left permanently on each one.

Key Features & Design

• Fits two mounts: one puck covers both the iOptron CEM26 and the GEM28.
• Puts the powerbox at the saddle: the Saddle Powerbox sits between the mount and the telescope, which shortens every cable run on the imaging train.
• Part of a mount-specific range: Pegasus Astro publishes pucks for the AM5/AM3, NEQ6 and EQ6-R, RST-135 and RST-300, HEQ5, AZ-EQ6, Star Adventurer GTi, and Avalon M-UNO and LINEAR.
• Mechanical only: no electronics, no ports, no effect on the Saddle Powerbox's outputs or sensors.

Recommended Uses

• Fitting a Saddle Powerbox to a CEM26 or GEM28 for on-mount power and USB distribution.
• Travel and grab-and-go setups where the whole control stack rides on the mount head.
• Keeping a dedicated puck on each mount in a multi-mount setup so the powerbox itself can move between them.

Compatibility and Accessory Notes

• Requires a Saddle Powerbox. The puck is the interface between that unit and your mount; on its own it does nothing.
• Fits the iOptron CEM26 and GEM28. Other iOptron models are not covered by this puck.
• Not needed on an NYX-101. The Saddle Powerbox attaches to that mount directly.
• The Saddle Powerbox itself is 110 x 110 x 32 mm, takes 12–14 V DC, and provides four 12 V outputs (10 A total), two PWM dew channels, two USB 3.1 and two USB 2 ports, and onboard temperature, humidity and dew-point sensing. Its clamp accepts Losmandy and Vixen bars and is rated to a 40 kg payload.
• On a different iOptron? Tell us the model and we will check the puck range against it before you order.

Good to Know Before You Order

• The puck is mount-specific. This one covers the CEM26 and GEM28; the HEQ5, AZ-EQ6, NEQ6/EQ6-R, GTi, AM5 and M-UNO versions are separate parts, all of which we stock.
• Pegasus Astro publishes no material, dimensions or weight for the pucks. Those specification rows are left out rather than filled with figures we cannot source from the manufacturer.
• It is an adapter, not a powerbox. Ordering this alone gets you the mounting interface; the Saddle Powerbox is a separate product.
• The powerbox adds weight above the saddle. The CEM26 and GEM28 are light-payload mounts, so it is worth counting into your total alongside the telescope and camera.

Frequently Asked Questions

Is it difficult to set up?

No. The puck fixes to the mount, and the Saddle Powerbox then attaches to the puck. It is a bolt-on part with no wiring and no configuration.

Does one puck really cover both the CEM26 and the GEM28?

Yes — Pegasus Astro publishes it as a single part for both mounts.

Will it fit my CEM40 or GEM45?

Not according to Pegasus Astro's published fitment, which names the CEM26 and GEM28 only. Send us your model and we will check the range with you.

Does it change what the Saddle Powerbox can do?

No. Outputs, dew channels, USB ports and sensors are all unaffected — the puck only carries the unit.

Can I leave the puck on the mount permanently?

Yes, and that is the usual approach when the powerbox moves between mounts.

Bottom Line

In short: the mount-specific adapter that puts a Pegasus Astro Saddle Powerbox onto an iOptron CEM26 or GEM28. One bolt-on part covering both mounts, and your power and USB start at the saddle.