Private Label Query Terminal Board, WF-K3399

TL;DR: Private Label Query Terminal Board

AndroidSBC export desk: OEM, ODM and distribution tracks open on the WF-K self-service query board family serving international market, United States. The WF-K3399 self-service query terminal Android motherboard spans the dual-screen HD query terminal with mirrored display and eleven sister models in the WF-K series, all built on the RK3399 dual Cortex-A72 1.8GHz plus quad Cortex-A53 SoC with the ARM Mali-T860 MP4 GPU, dual 1080p output, HDMI plus eDP, and Android 11 firmware support. AndroidSBC, the export arm of Wanlin Manufacturing Group, ships the WF-K family from the Longgang source factory in Shenzhen to international market and United States importers who run hospital information points, bank branch lobbies, government service halls, mall directory stations, airport concourses and outdoor query cabinets.

About AndroidSBC and the Self-Service Query Terminal Android Motherboard Family

Wanlin Manufacturing Group builds boards and nothing else, which is why the WF-K query terminal line is sold factory direct through AndroidSBC. Twelve models cover hospital, bank, government, retail, transport and outdoor query duty, and each one leaves the Longgang line in Shenzhen with the same peripheral driver bundle for international market integrators. Every model is validated on the same burn-in rig in Longgang before it is packed for United States, and the same rig logs are available on request.

WF-K3399 Technical Specifications

All parameters in the table above are measured at 25C ambient. The AndroidSBC WF-K3399 (dual-screen HD query terminal with mirrored display) maintains its 4K HDMI output plus capacitive touch sampling while running the burn-in test loop, a configuration that competing single-platform boards cannot sustain at 60fps. For United States importers sourcing the WF-K family, the WF-K3399-A variant is the typical configuration for the dual-screen HD mall directory rollout use case, with a sustained weekly capacity of 5000 pcs/wk.

Challenges in Sourcing Self-Service Query Terminal Android Motherboards for United States Buyers

Sourcing a self-service query terminal board for United States is not only a chip question. A international market integrator has to align the touch stack, the printer and scanner drivers, the enclosure cut-outs and the compliance file set before a single unit reaches the field.

Compliance and logistics compound each other. Boards for international market move through Port of Los Angeles, and any mismatch between the FCC / UL documents and the FCC Part 15 and FCC ID for radio modules, plus UL or ETL safety listing route applied in United States surfaces at exactly the wrong moment. AndroidSBC answers this with a single BOM per lot, so a international market order of 164200 units carries the same silicon and firmware as the pilot batch for United States.

Competitive Comparison: WF-K3399 vs Competing Self-Service Query Terminal Android Boards

For a international market project the comparison is not a single chip benchmark. It is what the board carries into United States deployment as standard.

• Platform breadth: twelve models on eight chips (RK3588, RK3568, RK3566, RK3288, RK3399, A133, H618, T527), so {city} integrators can move between tiers without changing driver stack or mounting pattern.
• Bundled integration: touch, printer, scanner, card reader, camera and voice driver SDK ships in the carton; competing query boards sold to {city} usually ship a board only.
• Compliance files: CE, FCC, RoHS and the destination conformity route travel with the lot, which competing board vendors often leave to the {city} integrator to obtain.
• Long-term supply: one fixed BOM per production lot and a seven-year firmware window, against the frequent silicon swaps seen on competing query boards reaching {city}.

Global Self-Service Query Terminal / Information Kiosk Market Trends

Query terminals are becoming the default front door for routine information requests. In United States this is visible in tenders that bundle the dual-screen HD query terminal with mirrored display with identity peripherals and printing, and international market integrators are quoting against those bundles rather than against bare boards.

• Volume shift to board-level sourcing: more integrators now buy the motherboard rather than the finished kiosk, which is why the WF-K3399 and WF-K3601 tiers ship in board form with the enclosure left to the local partner.
• Dual-screen becomes the default: hall display plus touch query on one board is replacing two separate devices, and the WF-K3601 and WF-K3602 configurations address that pattern directly.
• Longer service life expectations: operators now plan five to seven years per query terminal, which favours a fixed BOM such as the WF-K3602 over boards that re-spin silicon between lots.

The direction of travel for international market is towards fewer board variants deployed across more sites, which is exactly the configuration the WF-K series was built around for United States.

WF-K3399 Application Scenarios

The WF-K3399 dual-screen HD query terminal with mirrored display sits inside a twelve-variant WF-K self-service query terminal Android motherboard family from AndroidSBC, a Wanlin Manufacturing Group export brand. The WF-K3399-A configuration is the typical build for the dual-screen HD mall directory rollout use case, with touch panel and identity peripheral driver SDK plus staged OTA management bundled.

• Hospital and clinic information points: the WF-K3399 drives a touch query station at the entrance while the hall display shows the same information set to waiting visitors in international market.
• Bank and financial branch lobbies: touch query plus counter display from one board, with card reader and ID reader integrated for account and product lookups.
• Government service halls: the WF-K1331 runs tax, social security and real estate information lookup, with printing available on the same board.
• Shopping mall directories: the WF-K6180 serves mall directory and wayfinding lookup, with the advertising screen running an independent content loop.
• Airport and train station concourses: high-brightness information query where the WF-K5270 has to stay readable under strong ambient light.
• Retail and pharmacy price or product lookup: compact stations where the WF-K8800 fits a narrow counter without structural work.
• Outdoor and unheated information cabinets: the industrial tier holds the wide temperature window and 7x24 duty cycle for street-level query points.
• Multi-language public information points: on-screen lookup in more than one language from a single board, with voice assistance where the venue requires it.
• Retrofit programmes in international market: the same board re-uses the existing enclosure, panel and mounting pattern so an installed estate can be upgraded board by board.

Partnership Models for international market Buyers

AndroidSBC structures international market partnerships around how much integration the local partner keeps in house, with United States projects typically choosing between three levels.

• Distribution track: the partner buys the WF-K board against a published price list, keeps its own stock, and AndroidSBC supplies the driver SDK and compliance files with each lot.
• Integration track: the partner takes the board plus firmware customisation, enclosure drawings and peripheral validation support, with a joint qualification run at the Longgang factory.
• Private-label track: the WF-K board ships under the partner brand with customised boot logo, packaging and documentation, on a fixed BOM held for the length of the agreement.

The tracks are not exclusive of each other, and international market partners commonly run distribution on one product line and private label on another for the same United States customer base.

Frequently Asked Questions

Does the WF-K self-service query terminal Android motherboard family support a dual-screen HD query terminal with mirrored display?

Answer: Yes. AndroidSBC treats the dual-screen HD query terminal with mirrored display as a stock case on the WF-K family and validates it on every tier that could plausibly run it, including the entry and industrial parts.

What is the real difference between the RK3399 tier and the other silicon tiers in the WF-K family?

Answer: The RK3399 tier carries its own process node, GPU and NPU rating, and AndroidSBC publishes all three per model so international market integrators can compare on facts rather than on marketing labels.

Can AndroidSBC handle CE / FCC / UKCA / RoHS / REACH paperwork for United States?

Answer: Yes. AndroidSBC handles the compliance route for United States directly, and international market buyers receive the certificate set with the shipping documents so customs clearance is not held on paperwork.

What are the MOQ and lead time for a first order of the WF-K self-service query terminal family?

Answer: MOQ is quoted per model rather than per family, so a international market integrator can pilot one tier for United States without buying across all twelve. Samples take 1-3 days and bulk lots 15-30 days.

Does AndroidSBC develop custom Android ROM or custom Linux builds for the WF-K family?

Answer: Yes. AndroidSBC develops custom Android ROM and custom Linux builds for the WF-K family, with the work scoped against the international market requirement and validated on the same production rig that ships United States orders.

How are software updates and long-term support handled on the WF-K family?

Answer: Updates are delivered through a staged OTA channel with rollback support, and international market integrators decide when a United States estate moves to a new build rather than being pushed onto it.

Can AndroidSBC ship to Amazon FBA or 3PL consolidation warehouses for the WF-K family?

Answer: Yes, and where a international market seller runs its own 3PL arrangement in United States, AndroidSBC ships to that warehouse on the same terms as a direct buyer order.

How are RMA and DOA replacements handled on the WF-K self-service query terminal family?

Answer: DOA units are replaced from the next available lot, and RMA cases are tracked by lot number. For international market integrators this keeps United States deployments serviceable without holding large local stock.

Contact AndroidSBC: Start Your WF-K3399 Sourcing Conversation

international market integrators can reach the AndroidSBC export desk for the WF-K self-service query terminal family through the following channels:

• Email: Androidsbc@163.com
• Export service hotline: +8613261677119
• Website: https://www.androidsbc.com
• Source factory address: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China

A 1-3 day sample lead applies to United States buyers and a 15-30 day mass-production lead to bulk orders. AndroidSBC, a Wanlin Manufacturing Group export brand, commits to a seven-year firmware update window on the WF-K family.