Expert Features  2.1-Inch Intelligent Auxiliary LCD — A compact square display (480×480) that sits inside your ARGB PC case like a tiny command center, showing real-time system stats, water-cooling data, CPU/GPU usage, RAM load, temperatures, time, and more. DIY-Friendly “Open Design” Ecosystem — Unleash your inner mad scientist with 1000+ downloadable themes from the MiraBox SPACE Cloud Space Station. Switch between cartoon sets, sci-fi dashboards, globe animations, 2D/3D creations, clocks, CPU meters, game scenes, and user-generated masterpieces. Dynamic Video Background Support — Plays .jpg / .png / .gif / .mp4 / .mov files with synchronous display, zero loading, and instant “what-you-see-is-what-you-get” rendering. Perfect for looping animations, music visualizers, character art, or your favourite VTuber dancing behind your temps. USB One-Wire Communication (No GPU, No HDMI) — Uses a USB-C / 4PIN connection that carries both data and power. No video card lanes are used. No HDMI ports are sacrificed. Just one wire and boom — it’s alive. MiraBox Craft Theme Editor + Community Hub — Customize fonts, layouts, audio visualizers, stickers, calendars, system-monitoring text, network speed meters, and more. Upload your creations to the SPACE community or download others’ works endlessly. Theme Carousel Rotation (Up to 9 Themes) — Drag to sort themes, set individual play intervals, and let the DR21 cycle through your aesthetic moods like a tiny digital gallery. Water-Cooling Screen Mode — Displays pump speed, coolant temperature, and other liquid-cooling vitals in real time for performance junkies. IPS Full Viewing Angle + Metal Shell — A sturdy 70×70×11 mm metal body with bright multi-angle visibility—perfect for PC showcase builds. Universal Windows Support — Works on Windows 7 or newer, supporting OEM & ODM customization, screen rotation (0°/90°/180°/270°), and multidevice control from a single software suite. Expert Specs  Item Specification Screen Dimensions 2.1 inch Resolution 480 × 480 Thickness 11 mm View Angle IPS full viewing angle Shell Material Metal Port USB-C / 4PIN Background Format .jpg / .png / .gif / .mp4 / .mov Compatibility Windows 7 or above Default Software Support OEM & ODM Screen Rotation 0° / 90° / 180° / 270° (clockwise/counterclockwise) Input Voltage 5V Power Consumption 1.5–3.0 W Connection Cable connection (USB-C & 4PIN) Screen Type LCD Dimensions 70 × 70 × 11 mm Weight 70g Interface Type-C In The Box Main body ×1, USB-A to C cable ×1, 4PIN to 9PIN ×1, Manual ×1, Back sticker/magnetic sticker ×1 System Requirements Windows 7 or newer