Power Cable that fits two prong connections

I don't really know how to explain this, but awhile back I saw a company that makes audiophile grade power cables that fit the little two prong connections found on some equipment. I recently got DirectTV and would like to replace the power cable on my DirecTV receiver but it has that two prong plug instead of the common three prong. For the life of me, I can't remember what company makes cables for that less common connector. Any help is greatly appreciated.