Guides
Suction Cup Mount Guide: Starlink, Peplink & More
You want your dish, antenna, or GPS meter mounted to glass — no drilling, no adhesive, nothing permanent. That's what a suction cup mount is for, and we make six of them.
They are not interchangeable. Every one is cut for a specific device, and the differences that matter — footprint, how many cups, how far the whole assembly hangs down below the glass — aren't obvious from a product photo. Ordering the wrong one is the most common mistake we see, and it's almost always a measuring problem rather than a compatibility problem.
Here's the whole lineup, what each one is actually for, and how to tell before you order rather than after.
The rule that applies to all six: interior glass only
Every suction mount we build is designed for the inside of a window, sunroof, moonroof, hatch, or skylight. None of them goes on the outside of your vehicle.
This isn't a hedge. A suction cup needs a clean, smooth, static surface. Mounted outside, it's fighting sustained airflow, road vibration, and rain hitting the seal at highway speed — conditions no suction cup is built to survive. It's also the wrong answer on painted metal, plastic trim, rubber seals, and any textured or matte finish. Smooth glass, interior side. That's the whole envelope.
If you need something on the outside of the vehicle or the roof, you want a screw-in, rail, or magnetic mount instead. More on that at the bottom.
Driving with one is the entire point
This trips people up because it sounds like it shouldn't be allowed: yes, you can drive with an interior glass suction mount installed. That's what they're for.
The reason is geometry. The dish or antenna sits inside the cabin, under the glass, so it never enters the airflow. There's no wind load to speak of. Re-check the cups before a long trip — especially after a big temperature swing — and pull the mount before a car wash, but otherwise it stays where you put it.
That is not true of our exterior mounts, and the distinction matters. The Starlink Mini Hybrid Mount is explicitly stationary use only — not to be used while the vehicle is in motion — because the dish sits out in the airflow. Treat the Magnetic Mount the same way. Interior suction and exterior magnet are opposite answers to the same question.
The lineup at a glance
| Mount | Fits | Suction cups | Footprint |
|---|---|---|---|
| Starlink Mini Suction Cup Mount | Starlink Mini | 4 locking | 271.8 × 451.8 mm (short side) or 410 × 298.9 mm (long side) |
| Compact Edition | Starlink Mini | 4 locking | 419.1 × 260.4 mm (16.5 × 10.25 in) |
| Gen 3 UTA-232 Suction Mount | Starlink Standard 4 Gen 3 | 8 locking | 554 × 765 mm |
| Router Mini Suction Mount | Starlink Router Mini | 4 | 119 × 172 mm |
| Peplink Slim MIMO Mount | Peplink Slim 40G 4x4 / 22G 2x2 | 2 locking | 340 × 155 mm |
| Dragy Suction Mount | Dragy DRG69 / DRG70 / DRG70C | 4 × 30 mm | 97 × 47 mm |
Starlink Mini: two mounts, and picking wrong is the usual error
We make two suction mounts for the Mini at the same price, and they solve opposite problems.
The standard mount is the low-profile one. With the Mini attached, total height from the glass to the furthest point is exactly 1.75 inches — low enough to fit under most sunroof shades, which is the reason it exists. It ships in two layouts, short-side and long-side, so you can match the shape of your opening. Built-in channels handle the cable.
The Compact Edition has a smaller 16.5 × 10.25 inch footprint for openings the standard mount won't fit — small moonroofs, boat hatches, RV skylights. The trade-off is depth: it extends 3.379 inches down from the glass, so it will not fit behind a sunroof shade. Smaller on the glass, taller into the cabin.
So the question isn't "which is bigger." It's: do you need to close a shade over it, or do you need it to fit a smaller opening? Measure the opening and the shade clearance before you order. Our full walkthrough is in How to Mount a Starlink Mini on a Sunroof.
Starlink Standard 4 Gen 3 (UTA-232)
The Gen 3 dish is much larger, so this mount works differently. Instead of two brackets that slide on, it's four ASA corner pieces that attach to the dish with 3M tape — top-left, top-right, bottom-left, bottom-right — feeding eight locking suction cups in a four-corner configuration. Redundancy matters at that size.
Overall it's 554 × 765 × 45 mm, which means it wants a genuinely large flat panoramic roof. It's designed around vehicles like the Tesla Model Y, Cybertruck, and Cadillac Escalade. The power cable routes through notches on the two bottom pieces.
Same rule as everything else here: interior glass, skylights and panoramic sunroofs only.
Starlink Router Mini: getting your WiFi outside
This is the one people don't know exists. The Router Mini suction mount puts your router on a window instead of a shelf, which pushes usable WiFi outside your van, RV, camper, or house — the difference between signal at the picnic table and signal only at the dinette.
It's small, 119 × 172 mm, with four cups, and the bracket mimics the stock Starlink mounting bracket. The router slides into the bottom of the bracket first, then the top clip snaps over. If a window isn't where you want it, there's a screw-in wall version that does the same job on drywall, or even our new 3M VHB version that sticks anywhere.
Peplink Slim MIMO
The Peplink mount fits both the Slim 40G 4x4 and the 22G 2x2 MIMO antennas, on two heavy-duty locking cups, at 340 × 155 mm. The antenna slides in with the logo facing the glass.
Because it's a cellular antenna rather than a satellite dish, placement is about the horizon rather than the sky, and moving it a foot can genuinely change your signal. The install detail is covered in How to Mount a Peplink Slim MIMO Antenna.
Dragy GPS
Smallest of the group and the odd one out, since it isn't connectivity gear. The Dragy mount holds a DRG69, DRG70, or DRG70C performance meter on a windshield using four 30 mm cups.
It's top-loading with two retaining tabs, and the device drops in at any of four orientations — so you can turn the LEDs away from your eyes at night or toward you when you want to watch status. USB charging ports stay accessible from either side.
Making the cups actually hold
Most suction failures are surface prep, not hardware.
- Clean the glass with isopropyl alcohol, not soap and water. Soap leaves residue, and residue is exactly what kills a seal. Let it dry fully.
- Press, then lock. Push each cup down before rotating the latch handle. Locking a cup that isn't seated just traps air.
- Tug test every time. Pull the mount in a few directions before you walk away from it.
- Re-check after temperature swings. Heat and cold both change how a cup behaves on glass.
- Reset a warped cup in hot water. Pull it off the mount and soak it — that returns the cup to its original profile and usually restores grip.
- Replace just the cup. We sell replacement suction cup anchors individually, so a tired cup costs a few dollars instead of a new mount.
Cups are the wear item; the ASA brackets outlast them. That's the whole reason we sell them separately. For more on how sun exposure affects both, see UV Protection for Outdoor Starlink Mounts.
When a suction mount is the wrong tool
Worth saying plainly, because a suction mount you shouldn't have bought is worse than no mount:
- Permanent install on a roof or cabin? Use a screw-in mount. It handles weather that suction never will.
- Steel roof and you attach and detach constantly? A magnetic mount is faster and doesn't care about glass.
- Boat rail or pole? A rail mount. Suction has nothing to grip.
- No suitable interior glass at all? Then none of these six is your answer, and that's fine.
Our mount buying guide compares suction, screw-in, and magnetic side by side if you're still deciding.
Pick yours
Every mount here is designed and printed by us in UV-resistant ASA, in 18 colors, at our shop just outside Atlanta, Georgia. Made in the USA, printed in-house, in 1–3 business days, then 3–5 business days to ship domestically. We ship worldwide, and spare parts are sold individually.
Don't see your device? We do custom 3D printing — tell us what you need held to a piece of glass.
