64-bit quad-core CPU (4GB RAM).For 2GB Version,please refer to ASIN: B0B7DFF7TY;8GB Version,please refer to ASIN:B09LYP7QH3 This case contains a super quite 40mm PWM fan and 4pcs heatsinks for good heat dissipation of Pi 4B board. 5V 3.6A Type C Power Supply will make your Pi work more stable. With ON/OFF switch, it's convenient for you to power on and power off. 64GB High Speed Class 10 Card with Card Reader , can work with all version Package Includes:1x Pi 4B (4GB RAM); 1x Case; 1x Cooling Fan; 4pcs*Aluminum Heatsinks; 1x 5V 3.6A Power Supply; 1x 64GB SD Card (with Card Reader) ; 2x 4K Cables