The Raspberry Pi Model B with 4 GB RAM. This tiny credit card size development platform packs a ton of features into a small footprint. It has to two USB2 ports, two USB3 ports, Gigbit Ethernet, two micro HDMI ports, 2.4/5.0 GHz WiFi, Bluetooth 5.0 and a 40 pin header for GPIO. It can run the latest Raspberry Pi OS image via MicroSD card. Specifications Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC 4GB 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. 40 pin GPIO header (fully backwards compatible) 2 × 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 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 (PoE HAT) Operating temperature: 0 – 50 degrees C ambient