About this item Easy-to-install Raspberry Pi 4 case - The Raspberry Pi 4 case (This H4 Case) consists of three parts and there is no need to screw the case, just cover them tightly; It can be access to all ports of Raspberry Pi Board, such as GPIO port, HDMI port, USB port, slot. Better Cooling System – Raspberry Pi 4 quite cooling fan 40x40x10cm and 4pcs aluminum heatsinks are good for heat dissipation of Raspberry Pi 4 Model B. This fan can be adjusted by PWM. The official Raspberry Pi OS supports the speed adjustment function. You can also control the speed of the fan by controlling the GPIO pin through a third-party program. High Quality Power Supply for Raspberry Pi 4 Model B - With ON/Off switch, it's convenient for you to power on and power off your Raspberry Pi 4; With Professional Certification:TUV, RoHS Certification; 1m ro HDMI cable for Raspberry Pi 4 Model B – High speed 4K HDMI cable 60P; 1m gold-plated ro HDMI to HDMI cable. Package Includes: 1x H4 Case for Raspberry Pi 4 Model B, 64GB Preloaded (Raspberry Pi OS) ,1x 5V 3.6A USB-C Power Supply, 1x 4010 Cooling fan, 1x ro HDMI Cable (1m), 1x ro HDMI to HDMI Adapter, 1x USB Reader, 1x 4pcs heatsinks, 1x Screw driver