Single-screen Query Terminal Board, WF-K3399

TL;DR: Single-screen Query Terminal Board

AndroidSBC sourcing desk: touch query board pricing held flat through the current quarter 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

Founded as a board house and now shipping to United States, Wanlin Manufacturing Group builds the WF-K self-service query terminal family in Longgang, Shenzhen. Twelve models share one firmware baseline and one peripheral interface contract, which keeps international market integrators from re-porting the touch, printer and card reader stack on every new project. The plant holds a standing allocation of LPDDR4X and eMMC for the WF-K line, which is how international market projects keep their lead times stable across quarters.

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

Self-service query terminals in international market live in public space, which means the board must tolerate dust, unskilled handling and long unattended hours, not just meet a datasheet in a United States laboratory.

The compliance route matters as much as the silicon. United States expects FCC Part 15 and FCC ID for radio modules, plus UL or ETL safety listing, and a query terminal board shipped to international market without that file set simply cannot be installed in a public building. AndroidSBC resolves it by locking one BOM for the international market lot of 24000 units and shipping it through the Los Angeles - Shanghai corridor on September 22, 2026.

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

Against the query boards usually quoted in United States, the WF-K board is positioned on integration completeness rather than on a single performance number for international market.

• 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

Public-facing information lookup is now measured as a service-level question, not a hardware line item. United States procurement increasingly specifies the dual-screen HD query terminal with mirrored display as part of a wider access programme, which pushes international market integrators towards boards that can be re-deployed across sites.

• 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-K8800 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-K8800 and WF-K8801 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-K8801 over boards that re-spin silicon between lots.

That trend favours board-level suppliers in United States: the international market buyer who can re-order the same part number two years later is the one who can keep an estate running.

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-K3600 runs tax, social security and real estate information lookup, with printing available on the same board.
• Shopping mall directories: the WF-K3601 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-K3602 has to stay readable under strong ambient light.
• Retail and pharmacy price or product lookup: compact stations where the WF-K3566 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

The partnership structure offered to international market buyers is deliberately flexible: United States integrators can take the board alone, take it with the driver stack, or take it as a private-label programme.

• 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.

For international market integrators the choice usually comes down to how much of the United States project the local team wants to own versus how much it wants the factory to carry.

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 ships the dual-screen HD query terminal with mirrored display as a standard configuration, and the touch, printer and card reader drivers for it are integrated into the factory image rather than added by the international market integrator on site.

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

Answer: The RK3399 tier differs in compute headroom, display capability and NPU availability rather than in board-level interfaces. All WF-K models share the same mounting pattern, the same peripheral pinout and the same firmware baseline, so a United States project can move between tiers without re-designing the enclosure.

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

Answer: Yes. AndroidSBC prepares the conformity file set for United States as part of the order, covering CE, FCC, RoHS and REACH as applicable, plus the destination-specific route. The documents travel with the international market shipment rather than following it.

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

Answer: AndroidSBC sets a pilot-friendly MOQ on the WF-K family. Sample units reach international market in 1-3 days, and a first bulk lot for United States runs 15-30 days from confirmation.

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

Answer: Yes, and the custom build is maintained as a branch rather than a one-off, so international market partners receive updates against their own image for as long as the United States programme runs.

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

Answer: The WF-K family runs a staged OTA channel with rollback. Updates are released against the shared firmware baseline, and international market integrators can hold a United States estate on a known revision while a new build is validated.

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

Answer: Yes, and this is a standard route for international market sellers. AndroidSBC prepares FBA-compliant cartons and labels for United States warehouses as part of the shipment rather than as a separate service.

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

Answer: DOA and RMA cases are managed by lot, with replacement units supplied from a matching build so a international market partner does not end up with mixed firmware across a United States estate.

Contact AndroidSBC: Start Your WF-K3399 Sourcing Conversation

To start a WF-K self-service query terminal Android motherboard sourcing conversation with AndroidSBC, international market integrators can reach the export desk 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

For international market and United States buyers the sample lead is 1-3 days and the mass-production lead is 15-30 days. AndroidSBC, a Wanlin Manufacturing Group export brand, commits to a seven-year firmware update window.