Description :

-The Cluster HAT from 8086 enables simple cluster computing on Raspberry Pi A+ and B+ lines
-Up to 4 Raspberry Pi Zero or Zero W boards can be connected to a Raspberry Pi A+/B+/2/3/4 board
-The Zeros operate in USB Gadget Mode, forming a small-scale computer cluster
-The Zeros plug directly into the HAT via on-board USB 2.0 MicroB connectors

-It includes:

•Cluster HAT
•USB A to Micro B Cable (plugs HAT into host Pi)
•Mounting hardware

-Specifications:

•USB Gadget Mode Functionality: Ethernet and Serial Console.
•Onboard 4 port USB 2.0 hub.
•Raspberry Pi Zeros are powered via Controller Pi GPIO (USB optional).
•Individual Raspberry Pi Zero power controlled via Controller Pi GPIO (I2C).
•Connector for Controller Serial Console (FTDI Basic).
•Controller Pi can be rebooted without interrupting power to Pi Zeros, network recovers on boot.