For the Gravio Standard package or higher, you get one or more Gravio Hubs. The Gravio Hub is the Edge Device that gathers all the data and processes. It is essentially a small computer. The specifications of the Gravio Hub are below:
CPU: Rockchip RK3399 (6 core) RAM 4GB
Radio: Wireless LAN, Zigbee, Bluetooth
Internal Storage: 32GB eMMC/Ubuntu 1804 with Gravio HubKit pre-installed
Dimensions: W97mm × L97mm × H29mm
Weight: 135g
Connection: USB-C Port × 1, Includes expansion adapter (HDMI, USB-A, etc.), External TPU (Tensor Processing Unit)