R5C Edition
Cinebox
Power. Mounted. Everywhere.
Model CBR5CSR3890 — built for the Canon R5C in the SmallRig 3890 cage. More cages coming.
From $225 — ships free in the U.S.
2400 × 1500 · Cinebox + caged R5C, ¾ view on black
Made for your exact cage. Every Cinebox model is engineered around one specific camera cage — this one bolts straight to the SmallRig 3890 and turns a single V-mount battery into a clean, switchable power hub for your whole build.
Every thread. Every port. Exactly where you need it.
R5C Edition
Fits like it shipped
in the box.
No universal-fit compromises. Each Cinebox model is designed around one specific cage — bought, mounted, and test-fitted on the real hardware before it ships. No adapters, four screws and you're rigged.

- Cage-matched engineeringEvery model number maps to one cage. CBR5CSR3890 is built for the SmallRig 3890 "Black Mamba" — its bolt pattern, its height, its clearances.
- Balanced for the R5CBattery weight sits low and centered — no tail-heavy tripod fights.
- All-day 8K RAWOne V-mount runs camera, monitor, and wireless for a full shoot day.
The Cinebox lineup
| Model | For cage | Cameras | Status |
|---|---|---|---|
| CBR5CSR3890 | SmallRig 3890 "Black Mamba" | R5C | First model — available now |
| CBR5CSR3233B | SmallRig 3233B "Black Mamba" | R5C · R5 · R6 | In development |
| CBR5CSR2982B | SmallRig 2982B Full Cage | R5C · R5 · R6 | Planned |
Every model is developed on the physical cage — we buy it, mount it, and test-fit the production print before it's released. Using a cage that isn't listed yet? Tell us which one and it goes on the roadmap.
Machined by intent.
Printed with precision.
Every surface earns its place. A rigid, reinforced enclosure with threaded mounting on all six sides — designed on a camera cart, not a whiteboard.
Cheese plates, top and bottom
Industry-standard 1/4″-20 and 3/8″-16 arrays. Mount monitors, arms, wireless video — or bolt the whole box to a cart, slider, or gimbal ring.
1600 × 1200 · top plate detail, raking light
A switch you can trust
A guarded, glove-friendly master power switch. Kill power to the whole rig in one motion — no yanking batteries between takes.
1600 × 1200 · switch macro, shallow DOF
Carbon-fiber nylon
The same class of material
as drone frames and motorsport brackets.
Cinebox is printed in carbon-fiber reinforced nylon (PAHT-CF) — not the brittle PLA or PETG of cheap knockoff boxes. It shrugs off drops, summer heat, and the torque of a fully loaded cheese plate, with brass thread inserts in every mounting point.
1400 × 1400 · CF surface macro, raking light
Serious power.
Seriously distributed.
Slot in any V-mount battery and feed your whole build — camera, monitor, wireless, lights — from one clean source.
2000 × 1250 · rear panel, D-Taps populated, moody light
Built to be built on.
Cinebox isn't an accessory. It's the foundation of the rig.
1200 × 1500 · on a camera cart
On the cart
Village power for monitors and wireless receivers.
1200 × 1500 · on a camera build
On the build
Under your caged R5C — counterweight and power source in one.
1200 × 1500 · gimbal / handheld rig
On the move
Compact enough for handheld and gimbal work.
Take a closer look.
1400 × 1050 · V-mount plate
1400 × 1050 · side profile
1400 × 1050 · thread inserts
1400 × 1050 · in-hand scale
Tech Specs
Get Cinebox.
Cinebox CBR5CSR3890 is available in our store — and on Amazon with Prime shipping. More cage models are on the way.