Raspberry Pi 4 Model B (4GB RAM)
Raspberry Pi Foundation has finally made some encouraging adjustments to the Raspberry Pi Model B product line. Since the introduction of Raspberry Pi 1 Model B+, the company took nearly 6 years to finally release an SBC that is capable of supporting some desktop features. Raspberry Pi 4 is different from its predecessors because it supports spreadsheet juggling, drafting of presentations, editing documents, and opening multiple tabs for convenient browsing. Raspberry Pi 4 Model B has the standard Raspberry Pi SBC size. The form factor is different in terms of positioning of some components and the replacement of a few interfaces. It is suitable for all Raspberry Pi users who want to enjoy the desktop-like experience on a Single Board Computer. Raspberry Pi 4 is low-cost and energy-efficient in comparison to a desktop.
Specs Raspberry Pi 4 with 4GB RAM
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Processor |
· Broadcom ARM v8 BCM2711 SoC · Quad-Core · Coretex-A72 · 64-bit @ 1.5GHz |
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Memory |
· 4GB SDRAM · LPDDR4-3200 |
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Connectivity |
· IEEE 802.11ac Wireless (2.4GHz and 5.0GHz) · Bluetooth 5.0 · BLE Gigabit Ethernet |
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USB |
· 2x USB 3.0 · 2x USB 2.0 |
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GPIO |
· 40-Pin Header (Standard Raspberry Pi) · Compatible with older Raspberry Pi models (fully backward compatible) |
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Display Connector |
· 2-Lane MIPI DSI |
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Camera Connector |
· 2-Lane MIPI SCI |
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Video Support |
· 4-Pole Port supports stereo audio and composite video · 2x Micro-HDMI (Up to 4Kp60 supported) · H.265 4Kp60 decode · H264 1080p30 encode | 1080p60 decode · OpenGL ES 3.0 Graphics support |
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Power |
· 3A (Minimum) DC 5V via GPIO Header · 3A (Minimum) DC 5V via USB-C (MicroUSB has been replaced with USB-C) · 2.5A power supply (good quality) works if the downstream USB peripherals consume less than (total) 500mA |
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Storage |
· Micro SD Card Slot · Loads Operating System · Data Storage |
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PoE |
· A separate PoE HAT is required for Power over Ethernet (PoE HAT is compatible with Raspberry Pi 4) |
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Operating Temperature |
· 0oC to 50oC |
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Weight |
· 45 grams / 1.6 ounces |
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Dimensions |
· 85mm x 56mm x 17mm |
Description
A bird’s eye view doesn’t notice all the adjustments Raspberry Pi Foundation has made to make Raspberry Pi 4 a reliable upgrade. If you focus on the form factor, you will realize that there are some significant upgrades to Raspberry Pi 4 Model B that are not available on any other Raspberry Pi SBC so far.
Efficient Power Consumption
Previous Raspberry Pi models had a Micro-B port to receive power supply but Raspberry Pi 4 has USB-C. Due to this upgrade, 1.2A is supplied to the downstream USB devices because USB-C manages to supply the additional 500mA. So, the power doesn’t fluctuate even if the processor is dealing with a heavy load.
Type-D Micro HDMI
Raspberry Pi 4 features a couple of Type-D Micro HDMI connectors instead of the full-size HDMI (Type-A) you get with the earlier Raspberry Pi SBCs.
Compatible with the PoE HAT
The previous Raspberry Pi models had the Ethernet at the bottom-right but Raspberry Pi 4 Model B has the Gigabit Ethernet Magjack at the top-right. This adjustment makes PCB routing simple. The position of the PoE connector remains the same and this is because Raspberry Pi 4 requires PoE HAT to support Power over Ethernet.
4Gbps Bandwidth for USB Ports
The Express Gen 2-Lane Single PCI facilitates 4x USB interfaces (External VLI controller support) with a total of 4Gbps bandwidth.
