How We Work⚠️ NOTICE TO BUYERS:We are a Professional Electronics Contract Manufacturer (EMS).We do NOT sell retail or off-the-shelf ready-to-ship replacement boards.All products shown are custom manufacturing cases protected by client NDA.To get a formal quotation within 24 hours, please provide: 1. Gerber Files (RS-274X) 2. Complete BOM List (with manufacturer part numbers) 3. Estimated Order Volume (Prototype or Mass Production) Products Description SMT Assembly Line8