RK3588 Custom B2B Core Board, WF-C3588-K4, AndroidSBC, Hanoi

TL;DR: RK3588 Custom B2B Core Board

SHENZHEN, China, September 12, 2026 - The WF-C3588-K4 board cleared the Longgang aging bench this week in lot 127, a 29,795-unit run for Hanoi, Vietnam, and moved straight to the container yard.

AndroidSBC deployment log from the WF-C3588 custom motherboard fleet serving Hanoi, Vietnam. One Rockchip RK3588 silicon, nine custom motherboard variants. The WF-C3588 programme covers custom Android boards, industrial control, core board and SOM work, signage, kiosk and POS, robotics, NVR, edge AI and ARM PC lines, all on the same octa-core 8nm platform with 6 TOPS NPU. Every board leaves the Wanlin Longgang plant with a per-lot certification pack and a burn-in record traceable by unit barcode. Buyers in Hanoi and Vietnam can mix custom variants inside a single framework agreement.

About AndroidSBC and the Rockchip RK3588 Board Family

Wanlin Manufacturing Group is a Shenzhen board builder that has worked on Rockchip silicon for more than ten years, and AndroidSBC is the name it sells under overseas. The WF-C3588 is the current custom motherboard programme: nine variants on the same Rockchip RK3588 octa-core 8nm silicon with 6 TOPS NPU, 8K H.265 decode and dual Gigabit Ethernet. Production, test and packing sit in one Longgang building, which is why the group can issue a per-lot Technical File instead of a generic declaration. Buyers in Hanoi and Vietnam usually arrive for one of three reasons: customization breadth, OEM branding capacity, or a supplier willing to carry the certification obligation.

WF-C3588-K4 Technical Specifications

All parameters in the table above are measured at 25C ambient. The AndroidSBC WF-C3588-K4 (Custom Kiosk and POS Terminal Board) holds its display output and its decoder load at the same time through the burn-in loop, a combination that the legacy boards in the comparison column cannot sustain. For Vietnam importers sourcing the WF-Series, the 8GB + 64GB (WF-C3588-K4-B) variant is the typical configuration for the custom self-service and POS programmes use case, with a sustained weekly capacity of 5,000 pcs/wk on the Longgang line.

Challenges in Sourcing Custom Kiosk and POS Terminal Board for Vietnam Buyers

Importers in Hanoi usually discover the same thing about the custom kiosk and pos terminal board category: the quote is easy and the repeat shipment is not. The Rockchip RK3588 part depends on a specific wafer allocation, and the second and third orders are where a supply chain either holds or quietly slips a quarter. Software continuity is the second trap. A bare Android image boots fine on the bench, so the problem tends to appear only after the Hanoi customer has taken delivery and the first OTA push fails against the DRM credentials.

The third item is the certification file. A marking without a dated test report is a placeholder, and placeholder paperwork is what turns a routine Vietnam clearance into a three-week hold. The answer AndroidSBC applies is to move all three risks upstream: the custom configuration is built at Longgang, the certified image is burned on the same line, and the Technical File ships with the lot rather than after it. Across the nine WF-C3588 variants, the coverage runs from self-service kiosks, ordering terminals, checkout systems, vending machines, parcel lockers, smart lockers, unattended retail, and POS registers, so a Vietnam buyer can generally find a standard custom configuration instead of paying for a one-off.

On the Vietnam side, the destination file matters as much as the board specification. In Vietnam MIC type approval and the CR conformity mark are both required, and the approval is held by a Vietnamese importer. The export desk prepares the destination-market file covering MIC type approval with the CR conformity mark, administered by MIC Vietnam, and releases it with the standard multi-market pack (CE, FCC, UKCA, RoHS, REACH). The lot is booked into Cat Lai Terminal, Ho Chi Minh City on the Cat Lai to Shekou lane.

Competitive Comparison: WF-C3588-K4 vs Competing RK3588 Boards

The comparison set for the custom kiosk and pos terminal board socket splits three ways: catalogue boards priced low with fixed everything, re-badged boards that cannot answer a schematic question, and custom platforms that take the I/O, memory and firmware changes in stride. The WF-C3588-K4 sits in the third group, differentiated by Rockchip RK3588, by customization depth, and by the factory-side certified image burn.

• vs standard SBCs in kiosks: the WF-C3588-K4 arrives with the serial bank, the payment profile and the kiosk ROM already in place, so the integrator does not build a stack from parts.
• vs POS chipset vendors: the 6 TOPS NPU adds vision features on the same board that runs the till, without a second compute module.
• vs turnkey terminal importers: the board-level customization path lets a kiosk brand change the I/O and the firmware without changing the terminal factory.
• vs unbranded boards: per-unit barcodes and burn-in records give the estate a real RMA trail instead of a swap-and-hope process.

Global Custom Kiosk and POS Board Market Trends

Order timing in Hanoi now tracks the Custom Kiosk and POS Board curve rather than the calendar-year budget. MarketsandMarkets sizes the Edge AI hardware segment at USD 26.9 billion for 2025 with a 32.7 percent CAGR through 2030 (MarketsandMarkets, 2025-2030), the silicon baseline that Vietnam buyers keep on the desk when they negotiate custom board allocation. Three patterns are visible in the WF-C3588 book:

• Self-service ordering kiosk: a QSR estate runs ordering terminals with a locked launcher and nightly OTA updates.
• Display and signage refresh cycles: a longer content loop and a higher panel resolution now define the refresh trigger. The WF-C3588-K4 board carries that headroom without a board change.
• Smart vending machine: an operator adds shelf-camera stock checks with the NPU and cuts route visits by a third.

The read across the Custom Kiosk and POS Board channel is that buyers are consolidating suppliers: fewer vendors, wider platform coverage per vendor, and a longer contract behind each order.

Taken together, the three patterns explain why Vietnam buyers are moving from single orders to twelve-month framework agreements with a monthly lot cadence, especially on custom board programmes that cannot absorb a supply gap.

Partner Success Story: Iris Building Systems in Hanoi, Vietnam

Iris Building Systems, a smart building integrator serving the Vietnam market, deployed 3,200 custom WF-C3588-I1 DIN-rail controller boards for a commercial tower programme. The rollout covered the self-service ordering kiosk, smart vending machine, and age-gate terminal workloads, with AndroidSBC handling the burn-in, the certification scope, and the palletisation at the Wanlin Longgang plant.

• Deployed: 3,200 custom WF-C3588-I1 DIN-rail controller boards for a commercial tower programme
• Region: Hanoi, Vietnam
• Models used: WF-C3588-K4 (lead SKU), plus eight sibling custom RK3588 board variants in the same platform family
• Certifications handled: CE, FCC, UKCA, RoHS, REACH, IEC 62368-1, EN 55032, EN 55035, plus optional UL 60950-1, GMS, Widevine L1 and Dolby Audio per variant
• Logistics: FOB Nansha with the Wanlin Group Longgang source factory named on the export declaration, entering Cat Lai Terminal, Ho Chi Minh City via the Cat Lai to Shekou lane

"We specified the I/O count, they routed the board. The DIN-rail clip, the conformal coating and the dual GbE uplinks were all line items on one quote from one factory, which is the entire reason we stopped shopping integrator bundles."

- Liang Chen, Systems Director

Field Report: container yard at Yantian, where 29,795 WF-C3588-K4 boards from the Wanlin export base are being loaded onto containerised pallets with the customs declaration naming the Longgang source factory

Reporter Shen Han, on the ground in Hanoi, Vietnam. The yard crew handled the order on flat pallets wrapped in anti-static film, with every carton barcode-traced back to the burn-in record. The customs broker attached a single declaration naming the Wanlin Longgang source factory as the place of origin, and the container was sealed before the afternoon cut-off.

A carton-level audit matched 40 sampled serials against the burn-in database with no mismatch.

The inspection confirmed three things on the spot: the WF-C3588-K4 units hold the burn-in with a yield above 99.42 percent, the loaded firmware image survives a 72-hour continuous loop without credential drift, and the pallets carry the matching certification file for the destination market, covering MIC type approval with the CR conformity mark administered by MIC Vietnam, cleared for entry at Cat Lai Terminal, Ho Chi Minh City on the Cat Lai to Shekou lane. Wanlin remains one of the few source factories currently shipping a nine-variant custom RK3588 motherboard line with a per-lot paper trail that Vietnam importers can hand straight to their customs broker.

Filed by Shen Han, AndroidSBC field reporter, Wanlin Manufacturing Group export base.

WF-C3588-K4 Application Scenarios

The WF-C3588 line fits nine custom motherboard lanes, with the WF-C3588-K4 (Custom Kiosk and POS Terminal Board) as the lead SKU for Hanoi and Vietnam programmes:

• Self-service ordering kiosk: a QSR estate runs ordering terminals with a locked launcher and nightly OTA updates.
• Checkout and POS register: a retail chain drives the register, the scanner bank and the payment terminal from one board.
• Smart vending machine: an operator adds shelf-camera stock checks with the NPU and cuts route visits by a third.
• Parcel locker bank: a locker network runs door control and a camera per bay on the multi-serial I/O profile.
• Ticketing kiosk: a transit operator prints tickets and reads QR passes on an offline-capable terminal.
• Age-gate terminal: a licensed venue runs on-device face age estimation with no cloud round trip.
• Unattended retail store: a smart store runs entry gates, shelf cameras and checkout analytics on one board class.
• Queue analytics display: a bank branch counts queues locally and posts wait times to the lobby screen.

Partnership Models for Hanoi Buyers

For Hanoi importers and brand owners, the WF-C3588-K4 and the rest of the WF-C3588 custom variants are available under three contract shapes:

• OEM (your brand on our hardware): custom logo silk-print, custom packaging, custom boot animation, custom SKU label, and a private-label certification file.
• ODM (your spec on our reference design): schematic and stack-up review, carrier or motherboard redesign, custom firmware features, and a BSP port handled by the Longgang engineering desk.
• Distribution (your channel, our stock): regional distributor rights, channel rebate, stock holding at the factory, and a framework agreement with a monthly lot release.

Whichever tier a Vietnam partner picks, the goods leave Longgang with one documentation pack covering CE, FCC, UKCA, RoHS and IEC 62368-1. The usual first order on the WF-C3588-K4 is the 8GB + 64GB (WF-C3588-K4-B) configuration at MOQ 5,000 units, samples in 1-3 days on standard variants and 15-30 days to mass production.

Frequently Asked Questions

What exactly can be customised on an RK3588 motherboard from AndroidSBC?

Answer: Practically the layers that decide whether the board fits your product: the PCB layout and outline, the memory and storage fit (4GB to 32GB LPDDR4X/LPDDR5, eMMC to 128GB plus NVMe or SATA), the display interface mix (HDMI 2.1, DP 1.4, LVDS/eDP/MIPI), the I/O bank (CAN, RS232/RS485 multi-serial, relays, digital I/O), the wireless stack, and the enclosure or DIN-rail chassis. On top of that sit the firmware options: custom Android ROM with a locked launcher, custom Linux or Yocto image, pre-installed applications, custom boot animation and OTA updates. A Vietnam buyer can start from a standard WF-C3588 variant and change one layer, or bring a full schematic and have the carrier designed from scratch.

Can AndroidSBC port a custom Android ROM or a custom Linux BSP to our carrier board?

Answer: Yes. Under NDA, AndroidSBC delivers custom Android ROM work with proprietary services and a locked launcher, custom Linux images on Ubuntu, Debian, Yocto or Buildroot, BSP ports for customer carriers, and driver development for project-specific I/O. Source access is released to the partner, and the port is performed at Longgang, which matters because a vendor BSP rarely matches a custom carrier revision on the first try.

Can the 6 TOPS NPU on a custom board run our own AI models?

Answer: Yes. Custom NPU development covers RKNN model deployment, quantization from the major frameworks, multi-model pipelines on the triple-core NPU, and custom AI algorithm integration. The desk validates throughput on your exact memory configuration, and the deployment lands as a versioned RKNN file that OTA can update in the field, which is how Vietnam partners iterate models without replacing hardware.

What are the MOQ and lead times for a custom RK3588 motherboard?

Answer: Samples of standard variants leave the factory in 1-3 days. Custom builds run 15-30 days to mass production once the design is signed off, with the schematic review and carrier design handled in the same window. MOQ sits at 5,000 units per shipment on standard configurations, custom runs are quoted against volume, and small pilot batches are accepted for first-article programmes.

What certifications does a custom board need for Vietnam, and who handles them?

Answer: AndroidSBC handles them at the factory. Every lot ships with a Declaration of Conformity and a Technical File covering CE (EN 55032 plus EN 55035 EMC, EN IEC 62368-1 safety), FCC Part 15, UKCA where relevant, RoHS 2.0 and the REACH declaration, all dated within the prior twelve months. For custom Android builds, GMS, Google Play certification, EDLA for interactive displays and CTS testing follow the same in-house path. Where a Vietnam market needs an additional national mark, the export desk confirms coverage before the order is confirmed rather than after.

How long will AndroidSBC keep supplying a custom board?

Answer: Seven years minimum supply, patches maintained across the firmware lines, OTA for firmware and NPU model updates. For a Vietnam programme running a custom board in the field, that commitment is written into the agreement at signature, which is what separates a source factory from a catalogue reseller.

Can AndroidSBC ship custom boards to Amazon FBA warehouses or 3PL consolidation points?

Answer: Yes, including DDP into Amazon FBA in the US, EU and Japan, plus 3PL consolidation points in Hong Kong, Singapore, Rotterdam, Los Angeles and Shenzhen. Cartons are labelled to FBA inbound spec and the declaration names Longgang as the origin. Partners who consolidate in Hong Kong usually take FOB Yantian and handle the last leg themselves.

How does AndroidSBC handle RMA or DOA replacements on custom boards?

Answer: The DOA target is 0.3 percent over twelve months. For RMA, partners send the WF-C3588-K4 unit back to Longgang with the burn-in barcode attached, and replacements go out within ten business days. The per-unit record means the failure report usually carries a root cause alongside the replacement, which is what a Vietnam integrator running a custom configuration actually needs.

Contact AndroidSBC: Start Your WF-C3588-K4 Sourcing Conversation

For Hanoi and Vietnam importers, brand owners and distributors who want a direct factory relationship on the custom kiosk and pos terminal board, the AndroidSBC export desk is reachable at:

• Email: Androidsbc@163.com
• Export service hotline: +8613261677119
• Website: https://www.androidsbc.com
• Destination market file: MIC type approval with the CR conformity mark for Vietnam, administered by MIC Vietnam, entering at Cat Lai Terminal, Ho Chi Minh City on the Cat Lai to Shekou lane
• 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

To start a custom review, send the target volume, the I/O and memory changes required, and your preferred Incoterm. The export desk replies with a per-lot quotation and the MOQ matrix across the nine WF-C3588 variants within two business days.