I got both the high power and low power ones from ebay. They both have the same 8 pins with only 7 being used.
The low power ones look like this
and the high power ones look like this
http://www.siliconray.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/n/r/nrf24l01plwtm-1.jpg