TL;DR
At testing time, the Hardkernel’s ODROID-C2 absolutely destroyed the competition in this space, so buy this:
Hardware Shopping List (links current as of 8/2/2016)
- ODroid-C2 – $41.95
- DC 5V/2A 2.5 mm power adapter – $6.99
- 32 GB eMMC module for ODROID-C2 (make sure the eMMC to MicroSD adapter is selected as an add-on $1) – $42.95
- MicroSD to USB Adapter – $6.99
- RT5370 Chipset Wireless Antenna – $11.99
- Performance Pro Case for RPi – $9.99
After that continue the article and start with the Initial Setup of the Kali Image
Source: How to Build Your Own Penetration Testing Drop Box – Black Hills Information Security
–jeroen
via: Joe C. Hecht originally shared to Single Board Computers and Virtual Private Servers (Hardware).