1.Made from Casted Aluminum that also serves as the heatsink for passive cooling. 2.Built-in 30mm PWM Fan for greater thermal control, providing active cooling ensuring optimal performance during intense workloads. 3.Dual HDMI Ports allow you to connect dual displays at high resolutions, making it perfect for multi-tasking and media playback. 4.Access your files faster with two additional front-Facing USB 2.0 Ports for easier access to peripherals, boosting convenience and flexibility. 5.Connect more frequently with built-in DAC with 3.5mm Mic & Headphone Jacks providing 3.5mm mic input and headphone output, ideal for seamless video calls and enhanced audio output. Tap into the future of smart homes with an Internal USB Port for ZigBee Modules allowing for easy integration of ZigBee modules, making it perfect for Home Assistant and other IoT projects. Limitless possibilities with standard for Raspberry Pi HAT Compatibility all in one package. Colour:Black Material:aluminum alloy Package Contents: 1 x Case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.