The Dovpo x TVC Topside has a wattage output range of 5 to 90W, a resistance range of 0.08 to 3.5 ohm, and a voltage output range of 1.0 to 8.5V. The Dovpo Topside has VW output mode and bypass mode. The Topside does not come with a temperature control suite out of the box, but can be upgraded through the official Dovpo site. The temperature control suite supports Ni200, Titanium, and SS316 heating materials. The Topside has a temperature output range of 200 to 600 Degrees Fahrenheit and a 0.05 to 1.5 ohm TC resistance range. This box mod has a 0.96 inch OLED screen with vertically arranged information that displays output mode, output wattage, output voltage, atomizer resistance, output current, and battery life indicator. The Topside's unique selling point is its threaded top filled 10ml squonk bottle built into a plastic casing. The knurled top cap conveniently allows refilling without removing the squonk bottle casing from the device. A spare squonk bottle comes with the purchase of a Topside Box Mod. Due to the nature of manufacturing, this spare casing will arrive in a separate container. The Topside features a three button control interface consisting of an over-sized firing button and two adjustment buttons. The battery cover is a simple slide-to-lock design and fits one 21700, 20700, or 18650 battery with an adapter. The Topside has a micro USB port along the side which allows for charging and software updates. The Topside Box Mod has a gold-plated, spring loaded 510 connection with a leak resistant base.