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

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

The Raspberry Pi 4 Model B (4 GB) is the latest product in the latest version within the Raspberry Pi range. The minicomputer offers improvements in processor speed, multimedia performance, memory, and connectivity compared to the previous generation Raspberry Pi 3 Model B + while maintaining backward compatibility and comparable power consumption. For the end user, Raspberry Pi 4 Model B offers desktop performance comparable to entry-level x86 PC systems.

The main features of this board are the powerful 64-bit quad-core processor, dual display support with resolutions up to 4K via 2 micro-HDMI ports, hardware video decoding up to 4Kp60, 8GB RAM, dual-band 2.4 / 5 .0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0 and PoE capabilities (via a separate PoE HAT add-on). The dual-band wireless LAN and Bluetooth have a modular conformity certification, which allows the board to be designed into finished products with significantly less conformity testing.

Specifications

• Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
• 4GB LPDDR4-2400 SDRAM
• 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 analogue 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.

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 

• 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
• 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.

• GPIO – 40 general-purpose output/input pins, used for LEDs, buttons, motor controllers, and interfaces: I2C, SPI, and UART interfaces.

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