Raspberry Pi 2
Micro SD Card min. 8 GB
First, download the .img file from offensive-security.org – after being extracted you should have a .img file at ~7 Gb ready to be written onto your Micro SD card.
Next step is to insert your Micro SD card into your PC, and start up Win32DiskImager which can be downloaded at this link.
Open Win32DiskImager after your finished installation, and browse through your PC for the .img file for Kali Linux 2.0. Select the correct drive for your Micro SD card and press ‘Write’ for start writing Kali Linux 2.0 onto your Micro SD card.
That’s it – insert the Micro SD card into your Raspberry Pi and wait for the login screen. Username/Password is root/toor.