I did a search on the model h-600 and the photo at alibaba and the "mfgr" has a pic of a complete different unit, the picture that matches the one on ebay is a model h-300. Plus you will need the electrical plug adapter (not that expensive) but the big question is the remote, which version will come with the unit.
You can risk your money on this ebay sale but my money would be on the house as a winner as a side bet.
(Maunfactory Best Price) HD DVBS FTA receiver DSR-H600 products, buy (Maunfactory Best Price) HD DVBS FTA receiver DSR-H600 products from alibaba.com
edit: take a close look at the enlarged ebay photo and it says model h-300m not the h-600 as stated in the listing. This may not mean that much but if they cannot get this right what else can they get wrong.