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Green single-board computer with exposed circuits, USB and HDMI ports, silver processor, black RAM chip, white GPIO header pins

KEHIPI

KEHIPI Raspberry Pi 4 Model B 4GB development board

SKU CH-J7MM-4BDNR

A quad-core 64-bit development board with dual-band wireless, Bluetooth 5, dual micro HDMI and USB 3.0 ports

  • 64-bit quad-core Cortex-A72 processor at 1.5 GHz for responsive multitasking
  • 4 GB LPDDR4-2400 SDRAM handles demanding workloads smoothly
  • Dual micro HDMI outputs drive 4Kp60 displays for crisp visuals
  • Two USB 3.0 and two USB 2.0 ports connect diverse peripherals
  • Gigabit Ethernet plus dual-band 802.11ac Wi-Fi and Bluetooth 5 enable flexible networking

Development board with 4 GB LPDDR4

The KEHIPI Raspberry Pi 4 Model B 4GB is a single-board computer built around a Broadcom BCM2711 quad-core Cortex-A72 64-bit processor running at 1.5 GHz. It targets makers, educators and engineers who need a compact Linux-capable platform for IoT gateways, media centres or embedded prototyping.

Thermals noise and power draw

The board draws 5.1 V at up to 3 A through its USB Type-C connector and can also accept power via a PoE HAT (not included). No active cooling is bundled; thermal behaviour depends entirely on the enclosure and workload chosen by the builder.

Dual micro HDMI and USB 3.0

Two micro HDMI ports drive independent displays at up to 4Kp60, while two USB 3.0 and two USB 2.0 ports handle peripherals and fast storage. A 4-pole stereo audio jack, MIPI CSI/DSI interfaces and a micro SD slot complete the I/O without requiring extra adapters.

Punti di forza

  • 64-bit quad-core Cortex-A72 processor at 1.5 GHz for responsive multitasking
  • 4 GB LPDDR4-2400 SDRAM handles demanding workloads smoothly
  • Dual micro HDMI outputs drive 4Kp60 displays for crisp visuals
  • Two USB 3.0 and two USB 2.0 ports connect diverse peripherals
  • Gigabit Ethernet plus dual-band 802.11ac Wi-Fi and Bluetooth 5 enable flexible networking

Caratteristiche tecniche

BrandRaspberry Pi
ModelRAS-4-4G
Part NumberSC15185

Domande su questo articolo

How do I power the board correctly and avoid the common under-voltage issue?

Use a 5.1 V 3 A USB-C supply; anything lower causes throttling or instability even if the connector fits.

Which component will likely need replacement first during long-term operation?

The micro SD card wearing out from OS writes is the typical maintenance item.

What thermal limit appears first when the BCM2711 runs sustained heavy loads?

The SoC hits its 80 °C soft throttle point and reduces clock speed to protect itself.

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