Raspberry Pi 4 Model B

The Raspberry Pi 4 Model B features a quad-core Cortex-A72 running at 1.5GHz, up to 8GB of LPDDR4 memory, real Gigabit Ethernet, USB 3.0, and dual 4K display output. This puts it in a different class from every Pi that came before it. Runs OctoPrint or Klipper, webcam stream and all. It also makes a capable Linux desktop, a home server, a media center, a retro gaming console, a network-wide ad blocker, or the brain of whatever you are building. The 40-pin GPIO header is unchanged from earlier models, so the HATs and accessories you already own still fit. Specifications Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz 1GB, 2GB, 4GB or 8GB LPDDR4-3200 SDRAM (depending on model) 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE Gigabit Ethernet 2 × USB 3.0 ports, 2 × USB 2.0 ports Raspberry Pi standard 40-pin GPIO header (fully backwards compatible) 2 × micro-HDMI ports, supporting up to 4Kp60 2-lane MIPI DSI display port 2-lane MIPI CSI camera port 4-pole stereo audio and composite video port H.265 decode at 4Kp60, H.264 decode at 1080p60 and encode at 1080p30 OpenGL ES 3.1, Vulkan 1.0 microSD card slot for the operating system and storage 5V DC via USB-C connector, 3A minimum 5V DC via GPIO header, 3A minimum Power over Ethernet enabled (requires the separate PoE HAT) Operating temperature: 0 to 50°C ambient Product Notes Power comes in over USB-C and it wants a proper 5V/3A supply. A phone charger you had lying around will usually boot it, but it will brown out the moment you plug in a hard drive. Use a supply rated for the job. Video output is micro-HDMI, not full-size and not mini. If you are coming from a Pi 3 your old cable will not fit. You need one micro-HDMI cable per display. You will also need a microSD card, 16GB or larger, and something to write the OS onto it. Raspberry Pi OS is free and the imaging tool takes about five minutes. The Pi 4 runs warmer than earlier models, particularly the 8GB version under sustained load. It will not damage itself, it just throttles back. A heatsink or a case with a small fan keeps it at full clock.