The Helmet HC-04 is a versatile 3-in-1 adapter designed to expand the connectivity of your USB Type-C devices. It allows you to connect a variety of peripherals via its USB 3.0 port, such as an external hard drive, keyboard, or mouse, while the HDMI output enables you to mirror or extend your screen onto a TV or projector with a resolution of up to 4K Ultra HD, depending on what your host device supports. To ensure your laptop stays powered during use, the adapter includes a USB-C Power Delivery port for fast charging. All these functions are housed in a slim, grey metal casing that is compact enough to slip into a pocket or laptop bag, making it a practical companion for professionals who need a portable workstation on the go.