A HP Slate 500 Tablet System Board Z540
with a 2GB build-in Ram, and an attached Mini PCIe Wifi

Motherboard PN: 617160-001

Still as factory screwed down with the battery to the back cover.
All wiring/ribbons still in place
Battery have not been charged for long and presumed not working. 

Motherboard Tested and Working Ok.
 

Hard drive not included

Item as in photos. No other part included.