Frequency: Wifi 2.4 Ghz. Function: Wifi and Gigabit Ethernet via USB (300Mbps). Note: Videocore IV® Multimedia co-processor. Note: Bluetooth, 3.5mm Jack, mUSB. Outputs: 40pin GPIO. Dimensions: 85x56x17mm. Microcontroller type: Broadcom BCM2837B0 64 bit quad-core ARM Cortex-A53. RAM memory: 1GB LPDDR2 SDRAM. Spec info: 802.11 b/g/n/ac WiFi, Bluetooth 4.2. Power supply: 5V 2.5A. Connectors: HDMI, LAN, WiFi, 4x USB, mSD, 40 I/O port, DSI