|Update| A Desktop-Friendly Mini Rack

250825 Updates： ①2U ②3U ③3.5 HDD shelf for 4U ④Side Panel Print Setting Updates [More solid] ·2U 3U ·3.5 HDD shelf for 4U ·Side Panel Print Setting Updates A Desktop-Friendly Mini Rack for Single-Board Computers and More This compact mini rack is designed to sit comfortably on your desk without taking up much space. It features a horizontal screw hole distance of 111mm, making it compatible with a variety of small-form-factor devices such as Raspberry Pi, ZimaBoard, ZimaBlade, and other SBCs. Each layer aligns with the standard 1U rack height (44.45mm), allowing for easy stacking and modular expansion. To help keep your setup tidy, the top panel features built-in cable retention slots—sized for both 7.0mm and 7.6mm Ethernet cables—making it easy to secure and organize network wiring. Optimized for Passive Cooling To enhance passive airflow, all side panels and the top cover are printed with 0 top and bottom layers, exposing the infill pattern as natural ventilation holes. For better st