The HighPi Pro case for Raspberry Pi is the evolution of our original HighPi case. We kept the features that everyone loved (how easy it is to assemble, clean looks), and added three great new features: active cooling with an optional fan, a removable microSD card cover, and a sliding lid design that can accommodate almost any HAT. Multiple case versions offer a closed lid, a lid with universal cable port, or a lid with HAT-specific cable ports. The generous internal volume provides plenty of room for the add-ons you love. Specifically; Raspberry Pi 4 board HighPi Pro 5V Cooling Fan Heatsinks, including oversized ones IQAudio DAC+ or DAC Pro HATs Industry-leading ease of use, rapid tool-free assembly and disassembly Large internal volume for HATs, break-out boards, or heat sinks Self-adhesive rubber feet included, set of 4 GPIO ribbon cable port Multiple lid options and universal lid cutout to fit most HATs Optional/Available Active Cooling: quiet high quality 30mm fan, powerful cooling with and without HATs, software controlled Secure microSD card cover: removable from inside case with tool VESA mount support: an optional mounting plate provides VESA or wall-mounting Customizable: Molding-configurable output ports: available in multiple options, customizable for 1000+ Top of case can have printed logo for your branding