The Raspberry Pi foundation has imposed a limit of one Raspberry Pi Zero / Zero W per customer.
The Raspberry Pi Zero extends (and shrinks) the Raspberry Pi family down to a fast little gum stick sized computer.
Like the Pi Zero, it also has:
- 1GHz, single-core CPU
- 512MB RAM
- Mini HDMI and USB On-The-Go ports
- Micro USB power
- HAT-compatible 40-pin header
- Composite video and reset headers
- CSI camera connector