Features: Only for Raspberry Pi 4 Model B;Made with aluminum alloy and polished with a modern Space for Grey finish for stunning aesthetics and functionality. Cools the Raspberry Pi as a heatsink and comes with a 30mm software controllable fan for better temperature management. Minimizes clutter and makes cable management easy with all ports on the rear of the holder. A proper power button is installed on the for case to prevent file damage.The PCB Board built into the for case provides separate power sources to the fan and power switch The GPIO pins are accessible on top of the for case and protected by a removable magnetic cover. Specifications: Material: aluminum alloy Size: 106x95mm/4.17x3.74inch Packing bag: OPP bag Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Piece Argon One Aluminum for Case.