Welcome to our store! 1. This is a complete kit for Raspberry Pi 4B, including an ABS case, 3.5-inch screen, heatsink, and screwdriver, making it easy to use. 2. The heatsink is simple and easy to apply; just peel off the protective paper and attach it to the Raspberry Pi. Its custom fit ensures efficient heat dissipation. 3. The Raspberry Pi case offers rich interface options, high expandability, and robust protection for your device. 4. Professionally designed, the Raspberry Pi case does not interfere with WiFi signals, and the side slot allows for GPIO cable installation. 5. The 3.5-inch standard screen features a 480x320 resolution and strong compatibility with all Raspberry Pi versions, including a resistive touchscreen for intuitive control. 6. This 3.5-inch screen is compatible with Raspberry Pi 4B/3B+/3B/2B motherboards. You'll need to download the official Raspberry Pi system, and we provide a mirror image with drivers and troubleshooting for the official system. Item Type: For Raspberry Pi 4B Set Packaging: Kraft Paper Box Screen: 3.5 inches, 480x320 resolution Size: Approx. 90 x 61 x 35mm / 3.5 x 2.4 x 1.4in 1 x For Raspberry Pi 4B ABS Case 1 x Screen 1 x Stylus Pen 4 x Heatsink 1 x Screwdriver 1 Pack of Accessories If you encounter any product issues after receiving your order, such as damage or incorrect quantity, please contact the seller immediately. We are committed to providing you with satisfactory customer service.