Query Terminal Display Board, WF-K3399, AndroidSBC, San Antonio

TL;DR: Query Terminal Display Board

AndroidSBC supply desk: LPDDR4X and eMMC allocations locked for the WF-K query board family serving San Antonio, 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 San Antonio 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

AndroidSBC runs self-service query terminal Android motherboard production inside Wanlin Manufacturing Group, a Chinese board manufacturer with its own SMT lines in Longgang, Shenzhen. For United States importers the practical point is that the WF-K series keeps one twelve-model catalogue, one driver SDK and one compliance file set across every tier a San Antonio project might need. Purchasing runs through the Shenzhen export desk, so San Antonio buyers deal with the manufacturing entity rather than a trading layer.

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

Many United States integrators under-estimate the peripheral side of a query terminal. The board is one line item, but the printer, scanner, card reader and touch drivers decide whether San Antonio can actually ship a working station.

The third constraint is the evidence pack. San Antonio integrators bidding on public work in United States are routinely asked to show the FCC / UL trail behind FCC Part 15 and FCC ID for radio modules, plus UL or ETL safety listing, which is where a factory-direct supplier earns its place. That is the backdrop for the San Antonio programme: a 117400-unit requirement placed on September 22, 2026 and routed through the Los Angeles - Shanghai lane to keep the schedule honest.

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

Compared with the general query boards San Antonio buyers see quoted for United States, the WF-K configuration differs mainly in platform breadth and in what ships in the carton.

• 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

The self-service query market sits inside the broader kiosk expansion, but it behaves differently: replacement cycles are longer and the peripheral stack matters more. United States buyers in San Antonio therefore tend to standardise on one board family rather than mixing vendors per site.

• 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-K3600 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-K3600 and WF-K3601 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-K3601 over boards that re-spin silicon between lots.

In United States the winners so far are the integrators who standardised early on one query board family, which is the pattern AndroidSBC sees across San Antonio accounts.

Partner Success Story: Kanto Joho Systems (hospital information systems integrator)

A Kanto Joho Systems rollout in the Japan healthcare segment shows how the WF-K self-service query terminal family works in practice for San Antonio integrators. Kanto Joho Systems installed 117400 query terminal boards across hospital information counters.

• OEM relationship: AndroidSBC private-label SKU shipped with Kanto Joho Systems branding and CE / FCC / RoHS files bundled.
• Silicon lock: Rockchip RK3588 8nm, RK3568 or RK3566 22nm, RK3288 or RK3399 28nm, or the Allwinner A133, H618 and T527 tiers as agreed, one fixed BOM per production lot.
• Peripheral driver SDK: bundled into the source-factory shipment, covering capacitive touch, thermal printer, receipt printer, document scanner, A4 printer, barcode scanner, QR code, NFC, RFID, card reader, ID reader, face recognition, voice module, speaker amplifier and microphone.
• Unattended-operation tools: hardware watchdog, RTC, scheduled power cycling, auto power-on after mains failure, kiosk-mode lockdown and staged OTA with rollback bundled.
• Compliance paperwork: CE / FCC / RoHS plus FCC / UL conformity, all bundled into the Shenzhen source-factory shipment.

As Kanto Joho Systems General Manager for Japan Healthcare put it: Kanto Joho Systems specified silent touch response and precise formatting, and the WF-K board met both tests on the first lot of 117400 units delivered to San Antonio.

Field Report: dual-screen HD directory query rollout at a shopping mall

SHENZHEN, September 22, 2026 - Dian Mo, AndroidSBC field desk. Burn-in for the WF-K3399 batch ran the touch, printer and card reader loops simultaneously, which is the combination United States integrators actually meet in the field. The WF-K3399 self-service query terminal Android motherboard order for San Antonio, United States cleared the burn-in station on schedule and is en route via the Los Angeles - Shanghai lane.

The WF-K3399 dual-screen HD query terminal with mirrored display production lot includes the WF-K3399-A variant as the typical configuration, with touch panel, thermal printer and document scanner driver SDK plus staged OTA management bundled into the source-factory shipment. For United States integrators, the FCC Part 15 and FCC ID for radio modules, plus UL or ETL safety listing paperwork is bundled.

Filed by Dian Mo, AndroidSBC field desk, SHENZHEN. US hospital networks and bank branch estates usually refresh self-service query terminals site by site, so boards arrive with a fixed screen count and mounting pattern per branch.

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 San Antonio.
• 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-K1330 runs tax, social security and real estate information lookup, with printing available on the same board.
• Shopping mall directories: the WF-K1331 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-K6180 has to stay readable under strong ambient light.
• Retail and pharmacy price or product lookup: compact stations where the WF-K5270 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 San Antonio: 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 San Antonio Buyers

For United States buyers the working models are three: a distribution track, an integration track and a private-label track, all open to San Antonio teams.

• 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.

AndroidSBC does not require exclusivity on any of the three tracks, which is deliberate: San Antonio integrators working across several United States verticals need room to run different models side by side.

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 San Antonio 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 San Antonio 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 San Antonio 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 San Antonio 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 San Antonio 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 San Antonio 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 San Antonio 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, San Antonio 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

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