We offer the state of the art products, which include motors, drives, switch, modules, CUP, electronic accessories, motherboards, custom built computers, refurbished desktops, refurbished laptops, monitors, printers, desktop & laptop accessories/parts & much more! Please tell me the exact model you want and we will give you best price! We test all items before we send them out. After you receive the item, please use it immediately. If you have any question, please.That brings us very bad effect and can't solve any problem. And we will BLOCK the buyers who open cases without contacting us first! We will give big discount for the future business. We keep more than 10 thousands Transistors in warehouse, it could cut lead time of most items. Customer service in 1-4 hours. If there's any question, please contact with our sales. 2000+ suppliers with us, we could help you to get any components which is difficult to get.