... ,SGS,IPC 3.Prompt delivery 4paned size487*260mm PCB for USB productsSpecification:1.Factory Price 2.Certification:UL, ISO9001,SGS,IPC 3.Prompt ... quality 5.Good wills with our clientsShenzhen Factory PCB assembly & PCBA assembly OEM service for Electronics FieldApplications: Computer PCBA, network card &communication ... (6mil) If you interested it, send us Gerber File ,pls. PCB for USB products