Find the message I wrote on ,What should should know about Twinhan before you buy.
I bought a Twinhan 102G from a guy who sells a lot of them on ebay. The guy offered no refund, no exchange. The card did not work. The person who sold it offered to sell me another for less money, but no refund, or exchange. Then I found that Twinhan does not have any repair center in the U.S.
My first bit of advice is to buy from a reputable dealer who stands behind what they sell. Before you do that, find out how long the dealer will support into the warranty period. If the card fails and is 3 months old, will they send you another? How about 6 months? Keep in mind that if you want Twinhan to fix it, it has to be shipped to them. Tehy did not offer to fix my card, only to get after the person they sold it to to support it. I gave them the serial number as they asked, then never heard from them again. The first request for help from Twinhan took more than 10 days to get a reply, and the reply was in broken English, I didn't really know what half of the message said. After several emails I did find that there wasn't any repair center in the U.S., and that they have limited resources to help customers.
The last detail I want to share is that in order for the card to work properly, it may require that the PC have a minimum of a 400 Watt supply. I purchased a bigger supply to check that out, but I have to find an adapter for it before I can plug it into my mother board. I did find that the inventory on the Nexus-s cards will pickup this week. It may cost more, but it has U.S. support, and hardware decoding. Good luck.. Joe