
What is a turnkey OEM PCBA? Its full term is turnkey original equipment manufacturing printed circuit board assembly, which means we provide one-stop PCBA manufacturing from prototypes to mass production under one roof, from PCB materials to the final PCBA modules for building your electronic devices. We, the PCBONLINE team, provide turnkey OEM PCBA for mid to high-end applications, such as industrial, AI hardware, automotive battery management systems, cell connection systems, medical instruments, etc.
What is Turnkey OEM PCBA?
Turnkey PCBA OEM is a service provided by a single factory, like PCBONLINE. Our factory is fully responsible for the entire electronic module production process. Our duties span from raw material procurement, PCB manufacturing, and component procurement to PCB SMT assembly, through-hole assembly, and PCBA testing. Finally, we take care of finished device assembly, packaging, and finished product delivery.
As long as our client can provide us with the design files, such as Gerber, BOM (bill of materials), and pick-and-place file, the OEM PCBA manufacturer PCBONLINE can complete the entire electronic manufacturing process. By ordering our turnkey OEM PCBA, our client eliminates the need for multiple suppliers to connect with.
If you're new to the electronic design and manufacturing world, you can understand the term turnkey OEM PCBA by understanding turnkey, OEM, and PCBA separately:
- Turnkey: This means the customer receives a complete product, with the manufacturer taking full responsibility for production and assembly.
- OEM (Original Equipment Manufacturer): This means the manufacturer produces products to the customer's brand, design, or specifications.
- PCBA (Printed Circuit Board Assembly): This refers to a printed circuit board with assembled components.
PCBONLINE has been committed to turnkey OEM PCB assembly since 2005. We have two large advanced PCB manufacturing bases in Jiangxi and Jiangsu Provinces, one turnkey PCB assembly factory in Shenzhen, and global supply chains centered in Hong Kong. Besides, we maintain long-term cooperation with the top 3 mold and enclosure factories in China for custom manufacturing enclosures used for the PCBA. We are ready to help put your design into turnkey PCBA OEM manufacturing from prototypes to mass production.

Our Turnkey OEM PCBA for Industrial, AI, Automotive, IoT, Network...
We have successfully brought out many turnkey OEM PCBAs for our clients for different mid and high-end applications. Below, we list nine turnkey OEM PCBA projects we made for networks, industrial control, AI, automotive, and IoT.
Project 1. Cloud Server
Service: OEM PCBA
Our OEM service details:
- 12-layer HDI back-drilled PCBs
- Purchase of components and metal enclosures
- One-stop box-build assembly
- Software burn-in and functional testing
- IPC Class 3 industrial-grade quality standard
This turnkey OEM PCBA project features:
We reduce procurement costs for clients by 26% via supply chain optimization, with installment payment support.

Project 2. Automotive Navigation Module
Service: One-stop PCBA
Our OEM service details:
- 6-layer HDI PCBs
- Procurement of components
- Turnkey PCB assembly
- Software burn-in and functional testing
- IPC Class 3 automotive-grade quality standard
- FPGA welding bubble rate < 13%.
This project features:
Providing free DFM and passive component replacement significantly reduces mass production costs and increases efficiency by 21%.

Project 3. Car central control unit board
Service: One-stop PCBA
Our OEM service details:
- 8-layer HDI PCBs
- Procurement of components
- Turnkey PCB assembly
- Software burn-in and functional testing
- IPC Class 3 automotive-grade quality standard
This project features:
Improved shock resistance of the PCBA, with optimized thermal management technology ensuring rapid cooling of high-heat processors and power components, enhancing the overall performance of the PCBA.

Project 4. Industrial control motherboard
Service: One-stop PCBA
Our OEM service details:
- 10-layer HDI PCBs
- Procurement of components
- Turnkey PCB assembly
- Software burn-in and functional testing
- IPC Class 3 automotive-grade quality standard
This project features:
Free DFM, including PCB impedance control optimization, concentrated placement of computational chips and power management chips to improve heat dissipation, and using shielding to reduce EMI interference.

Project 5. Current transformer motherboard for EV charging
Service: One-stop PCBA
Our OEM service details:
- 6/4/4/6 oz thick-copper PCBs,
- 70% of components and aluminum heat sinks are procured by PCBONLINE,
- IPC Class 3 standards
This project features:
Customized copper busbars to enhance the PCB's high-current capacity, optimal heat dissipation design, large-area PTH assembly, mature solutions, and experience in high-current PCBA production.

Project 6. AI camera
Service: ODM PCBA
Features:
- Recognition Accuracy > 95%
- Resolution: 720p / 1080p
- Refresh rate > 20fps
- Behavior recognition < 1s
- Power consumption < 3W
- Computational power: 4 TOPS NPU, DSP, CortexA53@1.2GHz
Application scenarios:
- Riding behavior recognition,
- Pavement riding,
- Red light running detection,
- Wrong direction riding
This project features:
PCBONLINE independently develops it, suitable for industrial applications. If you are interested, please contact us to get the product manual and pricing support.

Project 7. CCS (cell connection system)
Service: Design to mass production
Our OEM service details:
- Free design of CCS structure and hardware,
- CCS solutions based on battery pack structure,
- Technical consulting for BMS system compatibility,
- From prototype to mass production,
- Automotive-grade quality acceptance standards
This project features:
Free technical support (including battery pack technology). Based on the product characteristics, we can provide a solution, including cost analysis, R&D, sample, small-batch production, BMS, etc.

Project 8. IoT lighting control motherboard
Service: One-stop PCBA
Our OEM service details:
- 95% of the components are procured by PCBONLINE,
- Fixture/jig design,
- Software burn-in and aging testing,
- One-stop PCB and PCBA
This project features:
- Using Chinese communication modules reduces costs by 16% while maintaining performance,
- Installment payment support,
- Scheduled and timely delivery,
- Helping the customer simplify their supply chain process and save on inventory management costs.

Project 9. Smart projector ODM
Service: From R&D to mass production
Our OEM service details:
- Structure design,
- Hardware and software design,
- Mold and plastic enclosures (outsourced),
- User interface software development,
- From prototype to mass production,
- Industrial-grade quality acceptance standards

This project features:
- Intellectual property belongs to the client,
- Refunding the R&D fees once the order reaches the agreed quantity,
- Refunding the R&D fees once the order reaches the agreed quantity,
- Selecting the most cost-effective MCU to save the customer's costs,
- Designing the enclosure according to the customer's requirements while minimizing the mold production fees.
Partner with PCBONLINE for Turnkey OEM PCBA
Since our foundation in 2005, PCBONLINE has been committed to turnkey OEM PCBA for more than two decades and served terminal and design clients from around the globe, including Fortune 500 ones in automotive, industrial controls, and computer, R&D companies in IoT and AI, and startups in consumer and medical electronics.
Our turnkey OWM PCBA services offer:
- Turnkey PCBA manufacturing: From PCB prototypes and testing to mass PCBA and box-build assembly, our PCB assembly services are custom and one-stop.
- Complete procurement: We source and customize enclosures, cables, and accessories from reliable suppliers.
- Engineering support: We check enclosure and accessory designs for compatibility with your PCBA and can suggest design changes.
- Free DFM/DFT: We provide free Design for Manufacturability (DFM) and Design for Testability (DFT) checks to ensure that designs are optimized for a smooth production process.
- Quality assurance: IPC-A-610 Class 3, automotive-grade or industrial-grade inspection standards.
- Turnkey delivery: From PCB fabrication to final product packaging and shipping.

PCBONLINE manufactures, assembles, and tests PCBs and PCBAs to box builds as a source factory manufacturer under one roof, from prototypes to bulky production, saving costs and time for you.
We have powerful manufacturing strength for advanced PCBs and high-end assemblies, such as HDI PCBs, high-frequency PCBs, ceramic PCBs, waterproof sealing, and 01005 fine-pitch assembly.
We can precisely control reflow/wave oven temperatures, design PCBA fixtures, and help create user manuals, installation guides, and compliance labels.
Our high-quality PCBA contract manufacturing is certified with ISO 9001:2015, ISO 14001:2015, IATF 16949:2016, RoHS, REACH, UL, and IPC-A-610 Class 2/3.
Our one-on-one free and professional DFM helps you debug and improve design, to ensure the manufacturability, cost-effectiveness, and final device success.
Whether you need turnkey OEM PCB assembly for AI hardware, IoT devices, creative electronic products, medical-grade products, or automotive modules, we can deliver PCBAs of high quality and in time, meeting any of your project requirements. To get a quote for your PCBA project, email us at info@pcbonline.com.
Conclusion
From PCB prototypes to final products, PCBONLINE ensures that your PCBA is assembled under one roof with precision. With more than 20 years of electronic manufacturing experience in turnkey OEM PCBA, we are ready to check your Gerber and provide turnkey services for you. Contact us today!
PCB assembly at PCBONLINE.pdf