Semi-finished USB Board Manufacturer — OEM PCBA Supply
The semi-finished board — 12 × 44 × 4.5 mm, 3.2 g — is the USB flash PCBA without a housing. It is the part that goes inside your own shell, your own branded drive, or your own industrial enclosure. Capacities run from 128MB to 128GB with a USB 2.0 or USB 3.0 interface, and the controller solution is selected to match your requirements. If you already have a housing design or an assembly line and only need the electronic core, this is the product to order rather than a finished drive that you would have to open up.
Specifications
- Dimensions12mm × 44mm × 4.5mm
- Weight3.2g
- InterfaceUSB2.0 / USB3.0
- Flash gradeA+ Grade
- Capacities128MB / 256MB / 512MB / 1GB / 2GB / 4GB / 8GB / 16GB / 32GB / 64GB / 128GB
What you can specify
- Capacity selection (128MB–128GB)
- USB2.0 or USB3.0
- Controller solution
- Supplied as bare board or as an assembly stage
Where it is used
- IoT & embedded devices Board-level integration
- Promotional & corporate gifts Feed your own housing line
Supply notes
- Die formats available: TSOP, BGA, LGA, COB, eMMC
- Controller packages: QFN, 24-pin, 48-pin, COB
- Controller solutions: Alcor, ITE, Xinbang, Micov
Applications
Customization
- Capacity selection (128MB–128GB)
- USB2.0 or USB3.0
- Controller solution
- Supplied as bare board or as an assembly stage
Manufacturing process
Each unit is built from sourced NAND and a controller solution selected to your host and workload, placed and soldered on our own SMT line, programmed, then capacity-verified with a full write-and-read-back and read/write tested before packing. The same configuration is held across repeat batches.
This is for you if
- USB product manufacturers with their own housings
- Assembly lines that only need the electronic core
- Integrators building a bespoke enclosure
This is not for you if
- Buyers who need a finished, ready-to-ship branded drive
- Projects requiring a custom housing — order the custom USB drive instead
Ordering Semi-finished Board: MOQ, samples, lead time and testing
| Question | Answer |
|---|---|
| Minimum order quantity | Set by capacity, controller solution and how much customisation is involved — confirmed with your quotation. See how MOQ is set. |
| Samples | Available, and recommended before volume — particularly for printed artwork or a bespoke mould. See how samples work. |
| Lead time | Depends on configuration, branding and whether tooling is needed. Confirmed in the quotation against your target date. See what drives lead time. |
| Testing | Capacity and read/write verification before packing. You can verify independently with a full write-and-read-back — the method is published here. |
| How to request a quote | Product type, capacity, quantity, application and target date is enough to start. Open the quote form, or see what to include. |
Specify your semi-finished board
Tell us the capacity, quantity, application and target date. We confirm MOQ and lead time against your specification rather than quoting a generic figure — and we reply to business enquiries within 1 business day.
Request a quote for Semi-finished BoardFrom the factory floor
Photographs taken at our own facility in Shenzhen. Nothing on this page is a stock image or a rendering of a product we do not make.
Semi-finished Board — frequently asked questions
What is the difference between this and a finished USB drive?
A finished drive includes the housing, branding and packaging. This is the bare PCBA — the same electronic core without a shell — for buyers who do their own assembly.
Can I specify the controller solution?
Yes. We work with Alcor, ITE, Xinbang and Micov controllers in QFN, 24-pin, 48-pin and COB packages. Tell us your host requirements and we will propose a matched solution.
Are the boards tested before shipping?
Testing is part of our production flow — capacity and read/write verification happens before packing. Tell us the acceptance criteria you work to and we will confirm how the batch is checked.
What is the minimum order quantity?
MOQ depends on capacity and controller selection. Send your specification for a quotation with the confirmed MOQ.