21.5-Inch Query All-In-One Board, WF-K1331, AndroidSBC, Phoenix

TL;DR: 21.5-Inch Query All-In-One Board

AndroidSBC sourcing desk: touch query board pricing held flat through the current quarter serving Phoenix, United States. The WF-K1331 self-service query terminal Android motherboard spans the information display and query kiosk and eleven sister models in the WF-K series, all built on the A133 quad-core ARM Cortex-A53 1.6GHz SoC with the PowerVR GE8300 GPU, dual 1080p output, LVDS plus HDMI, 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 Phoenix 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 Phoenix integrators. Purchasing runs through the Shenzhen export desk, so Phoenix buyers deal with the manufacturing entity rather than a trading layer.

WF-K1331 Technical Specifications

All parameters in the table above are measured at 25C ambient. The AndroidSBC WF-K1331 (information display and query kiosk) 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-K1331-A variant is the typical configuration for the train station information query 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 Phoenix 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.

Finally, the arrival path shapes the plan. Hardware destined for Phoenix clears through Port of Los Angeles, so the FCC / UL paperwork and the FCC Part 15 and FCC ID for radio modules, plus UL or ETL safety listing route used in United States need to travel with the carton, not follow it. For United States buyers the effect is that a 24300-unit order for Phoenix repeats identically the 6th time it is placed, down to the firmware revision.

Competitive Comparison: WF-K1331 vs Competing Self-Service Query Terminal Android Boards

What separates the WF-K board from competing query boards in Phoenix is less the processor row than the peripheral and reliability rows underneath it.

• 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

Self-service query terminals are moving from a specialist niche into standard public infrastructure, and United States is part of that shift. Demand for the information display and query kiosk is being pulled by service halls that want to shorten front-desk queues and by operators in Phoenix who need the same answer available outside staffed hours.

• Volume shift to board-level sourcing: more integrators now buy the motherboard rather than the finished kiosk, which is why the WF-K1331 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.

For Phoenix the opportunity sits in service coverage: operators in United States are adding information points faster than they are adding staff, and that gap is what the query terminal fills.

Partner Success Story: Siam InfoTerm Holdings (hospital group technology supplier)

A Siam InfoTerm Holdings rollout in the Southeast Asia healthcare segment shows how the WF-K self-service query terminal family works in practice for Phoenix integrators. Siam InfoTerm Holdings supplied 24300 query boards to hospital outpatient information desks.

• OEM relationship: AndroidSBC private-label SKU shipped with Siam InfoTerm Holdings 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 Siam InfoTerm Holdings Managing Director for Southeast Asia Healthcare put it: Siam InfoTerm Holdings rolled the WF-K single-screen board into outpatient information desks, and the 24300 units delivered to Phoenix came with the printer and card reader drivers already integrated.

Field Report: information and query board rollout at a train station concourse

SHENZHEN, September 22, 2026 - Hong Mei, AndroidSBC field desk. The WF-K1331 lot was soak-tested with the hall display and the touch panel running from one board, the configuration most United States projects specify. The WF-K1331 self-service query terminal Android motherboard order for Phoenix, United States cleared the burn-in station on schedule and is en route via the Los Angeles - Shanghai lane.

The WF-K1331 information display and query kiosk production lot includes the WF-K1331-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 Hong Mei, 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-K1331 Application Scenarios

The WF-K1331 information display and query kiosk sits inside a twelve-variant WF-K self-service query terminal Android motherboard family from AndroidSBC, a Wanlin Manufacturing Group export brand. The WF-K1331-A configuration is the typical build for the train station information query rollout use case, with touch panel and identity peripheral driver SDK plus staged OTA management bundled.

• Hospital and clinic information points: the WF-K1331 drives a touch query station at the entrance while the hall display shows the same information set to waiting visitors in Phoenix.
• 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 Phoenix: 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 Phoenix Buyers

Three partnership tracks serve the United States market, and Phoenix integrators can move between them as their own capability and volume change.

• 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 reviews Phoenix track selection annually with each partner, because United States market conditions and the partner own capability both move faster than a fixed reseller contract assumes.

Frequently Asked Questions

Does the WF-K self-service query terminal Android motherboard family support an information display and query kiosk?

Answer: Yes. AndroidSBC ships the information display and query kiosk 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 Phoenix integrator on site.

What is the real difference between the A133 tier and the other silicon tiers in the WF-K family?

Answer: The A133 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 Phoenix 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 Phoenix 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 Phoenix 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: AndroidSBC supports field updates by staged OTA with rollback, plus local update packages where a Phoenix integrator needs to service United States sites without network access.

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

Answer: Yes, and this is a standard route for Phoenix 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: AndroidSBC logs every board to its burn-in result, which is what makes RMA workable for Phoenix integrators running United States estates across many sites.

Contact AndroidSBC: Start Your WF-K1331 Sourcing Conversation

To start a WF-K self-service query terminal Android motherboard sourcing conversation with AndroidSBC, Phoenix 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 Phoenix 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.