Sell Usb\ / RS232\ / RS485\ / TTL Octagon V2.0 best price

- Specify needs. Please know as much as you can about the goods before taking the shots. please leave a message asking if there is any ambiguity. the customer service will reply to you as soon as possible. - Adequate supplies. We have enough goods, we can safely subscript. The temporary shortage will be indicated on the baby display chart. If there is occasional break-out, this store will contact buyers and negotiate solutions in time. Please also understand. - Color difference. All the products of our shop are physical filming, because of technology, display, light, environmental reasons may have a slight color difference, this is normal phenomenon, please understand, highly sensitive buyers, careful subscript. - Price issues We will not negotiate prices. all the prices on the store are actually selling prices. please don't waste time on them. we guarantee quantity and quality. Finally, i wish you a happy shopping trip!