The ELM806 includes:
- One PowerIN panel
- One PowerOUT panel
- 6-ft Powerwire prewired power outlet
- 1-ft Powerwire prewired power inlet
- Prewired power connectors
- 6-ft PowerConnect supply cord
- All hardware
- Installation template
Here are all the specs: http://www.sanus.com/us/en/products/elements/in-wall-power-cable-management/ELM806