Raspberry Pi 4 Model B 1GB is the most affordable option in the lineup, making it a practical choice for entry-level projects, simple controllers, and educational use. With its 64-bit quad-core processor at 1.5 GHz, dual-band WiFi, Bluetooth 5.0, Gigabit Ethernet, and PoE support via a separate HAT, it's well-suited for classrooms, lightweight embedded systems, and cost-sensitive deployments.

Specifications

• Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.8GHz

• 1GB LPDDR4-3200 SDRAM

• 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 with previous boards)

• 2x micro-HDMI® ports (up to 4kp60 supported)

• 2-lane MIPI DSI display port

• 2-lane MIPI CSI camera port

• 4-pole stereo audio and composite video port

• H.265 (4kp60 decode), H264 (1080p60 decode, 1080p30 encode)

• OpenGL ES 3.1, Vulkan 1.0

• Micro-SD card slot for loading the operating system and data storage

• 5V DC via USB-C connector (minimum 3A*)

• 5V DC via GPIO header (minimum 3A*)

• Power over Ethernet (PoE) enabled (requires a separate PoE HAT)

• Operating temperature: 0 - 50 degrees C ambient