Hello, Geekworm is specialize in open source hardware research and developemnt,we aim to provide high quality products with reasonable price, fast shipping as customer's requirement and intimate after-sales service.The recognition and trust of customers is the greatest inspiration to Geekworm. Geekworm have many DIY electronic products on sale, and Geekworm is our own brand. Our store has been open since Dec 9, 2013 . We have 98.6% positive feedback up to now. We are located in Shenzhen Guangdong China with convenient transportation access. Do you know Shenzhen? Shenzhen is the youngest city of China. Though it has a history of 7,000 years, its true development didn't start until 1980 when China start its reform and opening policy. With its vigour of youth, Shenzhen has developed at an incredible speed. In a time range of 30 years, it has changed from a nameless fish town to one of the most prosperous city in China. Shenzhen City We created our own WIKI page t...