Yocan UNI S Box Mod
Yocan
The Yocan UNI S Box Mod is a portable vaporizer designed for 510-threaded oil cartridges. Constructed with a durable zinc-alloy chassis, this compact device features a built-in 400mAh battery and fast USB-C charging. It offers three variable voltage settings and a convenient ten-second preheat function to accommodate various oil viscosities. Designed for maximum compatibility, it includes an adjustable diameter dial and a height slider to securely fit a wide range of atomizer sizes using a magnetic connector.

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Last Update: July 28, 2026

The Yocan UNI S Box Mod is a highly adaptable cartridge battery designed specifically for 510-threaded oil atomizers. Aimed at users seeking a travel-friendly companion, this device features a pocket-sized footprint while maintaining a durable zinc-alloy chassis. What sets this vaporizer apart is its highly customizable chamber, which utilizes an adjustable diameter dial and height slider to securely house cartridges of various dimensions. Powered by an integrated battery, it provides users with precise control over their vaporization experience through multiple voltage outputs and a dedicated preheat cycle. The inclusion of an intuitive interface ensures straightforward operation, making it an efficient tool for daily oil vaporization.
Universal Cartridge Compatibility
Designed to fit a wide range of atomizers, this device features a unique adjustment system. Users can modify the chamber using a dial to accommodate widths between 6mm and 12mm, alongside a height-adjustable slider for cartridges exceeding 40mm in length. The included magnetic connector attaches to standard 510-threaded bases, allowing the atomizer to simply drop into the battery chamber for a secure and functional connection.
Variable Voltage Settings
To accommodate varying oil viscosities, the device operates using three voltage settings. Users can cycle through preset outputs of 2.5V, 3.0V, and 3.5V to match their specific material requirements. A single button handles all core operations, allowing individuals to quickly adjust the electrical output. The current selection is clearly displayed on the front panel via a three-light LED indicator system.
Integrated Preheating Function
Thick materials often require initial warming to vaporize effectively. This box mod includes a dedicated preheat function that is activated through the main firing button. Once initiated, the cycle runs for 10 seconds at a lower 1.8V, applying gentle, continuous heat to the connected atomizer. This helps prepare the material for standard use without causing premature combustion or draining excessive power from the battery.
Battery Capacity and Charging
Powering the unit is a built-in 400mAh battery, which provides sufficient energy for standard daily use despite the compact frame. When depletion occurs, the system utilizes a modern USB-C charging port located on the device body. Replenishing the internal power cell is highly efficient, taking approximately one hour to achieve a full charge, minimizing downtime between vaporization sessions.
What’s in the box?
- 1x Yocan UNI S Box Mod
- 1x Magnetic Connector Adapter
- 1x USB-C Charging Cable
- 1x User Manual
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