Raspberry Pi 4 Computer Model B – 2GB RAM – Made in UK

Description of product: Raspberry Pi 4 model B, wi-fi, 2x micro HDMI, USB-C, USB 3.0, 2 GB of RAM 1.5 GHz

Raspberry Pi 4 model B with the increased RAM of 2 GB. This model has a more efficient processor Broadcom BCM2711 quad-core 64-bit ARM-8 Cortex-A72 1.5 GHz, two micro HDMI ports, two USB 3.0 ports and 2 USB 2.0 ports, as well as a USB-C power supply connector. In addition, the board is supplied with dual-band 2.4 GHz and 5 GHz WiFi, Bluetooth 5 / BLE, an Ethernet port with a speed to 1000 Mbps and the possibility of power supply via PoE. The other characteristics remain the same as in model 3 B+. Onboard there are still: 40 pin GPIO header (2×20 pin, raster: 2.54), microSD slot for memory cards, DSI and CSI connectors, which allow for the extension with a camera and a display. It has four mounting holes.

Specifications

• Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
• 2GB LPDDR4
• 2.4GHz and 5.0GHz IEEE 802.11b / g / n / ac wireless LAN, Bluetooth 5.0, BLE
• True Gigabit Ethernet
• 2x USB 3.0 ports, 2x USB 2.0 ports
• Fully backward-compatible 40-pin GPIO header
• 2x Micro HDMI ports which support a resolution up to 4K at 60Hz
• 2-channel MIPI DSI / CSI ports for camera and display
• 4-channel stereo audio and composite video port
• MicroSD card slot for the OS and storage
• 5.1V, 3A via USB-C or GPIO
• PoE (Power over Ethernet) suitable (with optional PoE HAT)

Image and sound in the Raspberry Pi 4 minicomputer

Raspberry Pi is equipped with two micro-sized HDMI connectors which enable video and audio transmission up to 4 K and 60 fps for one monitor and 30 fps for two monitors. A 4-field 3.5 mm jack socket is installed to connect headphones, speakers, or analog video via RCA Composite standard. Raspberry supports H265 (4Kp60), H.264 (1080p30) compression standard, and OpenGL ES 1.1, 2.0 and 3.0 graphics.

Raspberry Pi 4 model B – top view.

Operating system for Raspberry Pi

The drive of the minicomputer is still the microSD memory card. The manufacturer did not use memory eMMC. The operating system can be downloaded via the computer with the card reader.

Communication in Raspberry Pi 4

Raspberry Pi 4 has popular communication interfaces, available on traditional desktop and laptop computers. The most important of them are:

• 2 micro HDMI connectors to simultaneously connect two monitors up to 

• 2 USB 3.0 and 2 USB 2.0 connectors to connect peripheral devices. USB 3.0 allows for quick transfer from an external drive.

• An Ethernet socket, which allows wired connection to the network at up to 1 Gb/s.

• WiFi module – a 2.4 GHz and 5 GHz 802.11b/g/n/ac dual-band module.
• Bluetooth 5 module – popular 5.0 standard wireless connectivity
• GPIO – 40 general-purpose output/input pins, used for LEDs, buttons, motor controllers, and interfaces: I2C, SPI, and UART interfaces.

Power supply of minicomputer Raspberry Pi 4

To power up Raspberry Pi 4 you need a power supply with USB-C connector and an output voltage of 5 V. The minimum recommended current is 3 A.

Power supply for Raspberry in version 4 minicomputer

Raspberry Pi 4 needs a power supply with a USB C connector and an output voltage of 5 V. The minimum recommended current capacity is 3 A.

Specification of Raspberry Pi 4

Useful links

• RPi 4B User Guide
• Product card
• Raspberry Diagram Pi 4B
  
• Raspberry Pi 4 Model B mechanical drawing
• Documentation including hardware and configuration
• Raspberry Pi Cookbook – Simon Monk
• Description of audio/video jack 4pin connector