Raspberry Pi 4 Model B is the newest in the popular Raspberry Pi line of computers. It provides improvements in processing speed, multimedia efficiency, memory and networking relative to the previous model Raspberry Pi 3 Model B+, while retaining backward compatibility and comparable power consumption. To end-users, the Raspberry Pi 4 Model B delivers desktop output equal to the entry-level x86 PC systems. The main features of this package include a high-performance 64-bit quad-core cpu, dual-display resolution support of up to 4 K through a pair of micro-HDMI ports, hardware video decoding of up to 4Kp60, 2 GB RAM, dual-band 2. It's 4/5. 0 GHz wireless LAN, 5 Bluetooth. The Raspberry Pi 4 is an upgraded, re-engineered faster processor packed with even more power than the previous versions. Some of the applications include Smart home hub, media centre and factory controller. Some of the features of this model include an ability to run dual displays with 4K output. The Raspberry Pi 4 comes with a 64 bit processor (quad core) which can run at a speed unto 1.5GHz. It also comes with 4GB of ram, Bluetooth5.0 and is BLE. The Raspberry Pi 4 comes with multiple add ons that allow you to customise your Raspberry Pi 4 Exactly to your needs. Some of the useful add ons for the Raspberry Pi 4 are as follows, Raspberry Pi 4 Case https://www.semikart.com/product/RASPBERRY-PI-4-CA... Raspberry Pi 15.3W USB-C Power Supply https://www.semikart.com/product/106990296/4854875 Micro HDMI to Standard HDMI (A/M) 1m Cable https://www.semikart.com/product/114992024/5125165 The basic shape of the Raspberry Pi 4 allows it to be compatible with projects based on older models. Additionally, this is compatible with all older projects in terms of software as well. Read this useful article to find out how you can set up your Raspberry Pi. https://projects.raspberrypi.org/en/projects/raspberry-pi-setting-up