Buy USB DVB- T Products / Gifts

I am looking for steady suppliers of good quality, low-priced USB DVB- T products / gifts.
We are a trading and marketing company in USA that sells both wholesale and retail. We supply wholsale to different sellers / retailers in the major cities of the USA. At the same time, we do retailing through an online store with our own delivery system.
I intend to purchase initially in small quantities as trial transactions from new suppliers. Of course, this will evolve into repeated larger shipments in the next transactions to accomodate the continuous requirements of our customers.
I hope we could have a good, lasting business relationship.