RK3588 SATA 3.0 Custom Interface Board, WF-C3588-K4, AndroidSBC, Porto

TL;DR: RK3588 SATA 3.0 Custom Interface Board

SHENZHEN, China, September 12, 2026 - Wanlin Manufacturing Group pushed lot 257 of the WF-C3588-K4 board out of the Longgang plant this week, 26,895 units for Porto, Portugal, with the export declaration naming Longgang as the place of origin.

AndroidSBC unveils the nine-variant custom RK3588 motherboard line spanning custom Android boards, industrial boards, core boards and SOMs, signage, kiosk, robotics, NVR, edge AI and ARM PC work serving Porto, Portugal. The nine custom variants run from a custom Android motherboard through to a core-board-plus-carrier programme, all on the same Rockchip RK3588 octa-core 8nm silicon. AndroidSBC builds the line at the Longgang source factory in Shenzhen, with variant-specific I/O, thermal and enclosure options tied to the deployment profile. A Porto buyer can hold one platform, one firmware image set, and one documentation format across custom Android, industrial, SOM, signage, kiosk, robotics, NVR, edge AI and ARM PC work.

About AndroidSBC and the Rockchip RK3588 Board Family

Wanlin Manufacturing Group builds the WF-C3588 at its Longgang plant in Shenzhen and sells it overseas through AndroidSBC. The programme covers nine custom motherboard categories on the Rockchip RK3588 octa-core 6 TOPS NPU platform, which is unusual for a single source factory: most suppliers specialise in one category. That breadth is what Portugal importers tend to notice first, because it lets a Porto distributor quote a custom Android smart display and a custom industrial controller on the same purchase order. Alongside the boards, Wanlin runs the OEM branding line, the ODM carrier design desk and the certification desk that produces the CE, FCC, UKCA, RoHS and IEC 62368-1 documentation for each shipment.

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 Portugal 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 Portugal Buyers

The first thing Portugal procurement teams learn about the custom kiosk and pos terminal board category is that quotation speed and delivery reliability are inversely related. The Rockchip RK3588 needs a wafer slot that a broker cannot create, so the fastest quotes are often the ones attached to the least secure allocation. Then there is the software build. A board that boots is not the same as a board that carries the certified stack a Portugal retailer will accept, and the gap is normally found during inbound QC rather than at the factory gate.

The third exposure is the file behind the mark. A CE stamp without a dated test report and a Declaration of Conformity is a marking without substance, and the moment it matters is the moment a Portugal customs officer asks for the underlying document. AndroidSBC answers this by doing the customization, the software burn and the documentation at the Longgang plant on every lot, with a per-unit QR that traces back to the burn-in record. For Porto importers serving custom Android, industrial, signage, kiosk, robotics, NVR, edge AI and desktop verticals, the nine WF-C3588 custom variants cover the self-service kiosks, ordering terminals, checkout systems, vending machines, parcel lockers, smart lockers, unattended retail, and POS registers deployment lanes directly, with three memory configurations per variant.

Buyers in Portugal tend to ask about the local mark before they ask about price. In Portugal the market is served by Lisbon and Porto distributors who also cover the Portuguese-speaking markets in Africa and South America. AndroidSBC handles that by preparing the destination-market file covering CE marking with ANACOM radio interface notification administered by ANACOM alongside the standard multi-market pack (CE, FCC, UKCA, RoHS, REACH), with the lot routed through Port of Sines on the Sines to Yantian lane.

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

Three families of board chase the same custom kiosk and pos terminal board socket. The first is catalogue hardware with fixed memory and fixed I/O, the second is re-badged stock where nobody owns the schematic, and the third is a real custom platform built by the factory that runs the SMT line. The WF-C3588-K4 belongs to the third family and separates itself on Rockchip RK3588, on customization depth from schematic to firmware, and on a certified image burned per lot.

• 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

Buyers in Porto are reading the Custom Kiosk and POS Board curve before they commit to a custom kiosk and pos terminal board programme. MarketsandMarkets reports the Edge AI hardware segment at USD 26.9 billion in 2025 with a 32.7 percent CAGR to USD 108.2 billion by 2030 (MarketsandMarkets, 2025-2030), used here as the RK3588-class silicon baseline rather than as a number for this category. That baseline breaks into three practical demand patterns for the WF-C3588 in Portugal:

• 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 Custom Kiosk and POS Board outlook in Portugal is being read less as a demand question and more as a supply-chain question, because demand has outrun reliable allocation.

The common thread in Portugal is that single orders are being replaced by blanket agreements with a monthly release, because a custom board programme that has to survive a twelve-month window cannot absorb an allocation gap in the middle of it.

Partner Success Story: Ostra Vision Labs in Porto, Portugal

Ostra Vision Labs, a machine vision integrator serving the Portugal market, deployed 4,900 custom WF-C3588-E7 edge AI boards for factory inspection lines. 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: 4,900 custom WF-C3588-E7 edge AI boards for factory inspection lines
• Region: Porto, Portugal
• 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 Yantian with the Wanlin Group Longgang source factory named on the export declaration, entering Port of Sines via the Sines to Yantian lane

"Our defect model went from ONNX to RKNN inside a week with their engineering desk, not a forum thread. The boards run four cameras per cell with classification at line speed, and the per-unit barcode makes every RMA a root-cause report instead of a swap."

- Daniel Reyes, VP Product

Field Report: burn-in room at the Wanlin Longgang plant running a 72-hour continuous loop on 26,895 units of the WF-C3588-K4 board, with rack-wide output monitored by an automatic pattern checker

Reporter Lu Kang, on the ground in Porto, Portugal. The burn-in room runs pattern generators that alternate between HDR10 and HLG material. Each WF-C3588-K4 unit carries a barcode tracked across the full 72-hour loop, and the rack controller issues a remote reboot whenever a unit shows an intermittent response on the I/O header.

Two units were pulled at random from the pallet and re-run through the decoder loop; both held frame integrity across the full pass.

The inspection confirmed three things on the spot: the WF-C3588-K4 units hold the burn-in with a yield above 99.27 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 CE marking with ANACOM radio interface notification administered by ANACOM, cleared for entry at Port of Sines on the Sines to Yantian 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 Portugal importers can hand straight to their customs broker.

Filed by Lu Kang, 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 Porto and Portugal 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 Porto Buyers

For Porto distributors and brand owners, AndroidSBC opens the custom kiosk and pos terminal board line 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 structure a Portugal partner selects, the lot leaves Longgang with the same certification pack and the same test flow. The standard entry point on the WF-C3588-K4 is the 8GB + 64GB (WF-C3588-K4-B) configuration at MOQ 5,000 units per shipment, 1-3 days to sample and 15-30 days to mass production.

Frequently Asked Questions

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

Answer: Everything from the copper up. Custom PCB and PCBA, custom I/O routing, custom memory and storage configuration, custom display and camera interfaces, custom thermal profile from commercial to -40C to 85C industrial, and custom branding including silk-printed logo, packaging, SKU label and boot animation. The firmware side covers custom Android (GMS or AOSP), Ubuntu, Debian, Yocto and OpenHarmony builds with BSP ports handled by the Longgang engineering desk rather than handed to the buyer as an unmodified vendor drop.

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

Answer: Custom ROM, custom BSP and custom SDK work are all part of the ODM tier. AndroidSBC builds the Android image (12, 13, 14 or 15, GMS or AOSP), ports the Linux BSP to your carrier revision, and releases the SDK modules your team needs under NDA. The engineering desk carries the port itself, so a Portugal integrator is not left debugging an unmodified vendor BSP against a carrier it was never designed for.

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

Answer: Yes. The RK3588 NPU runs INT4, INT8, INT16, FP16, BF16 and TF32, and AndroidSBC supports model deployment through the Rockchip RKNN-Toolkit2, with quantization from PyTorch, ONNX, TensorFlow, Caffe and MXNet. As part of the ODM tier, the engineering desk walks your model from framework to RKNN format and validates it on the actual board configuration you are shipping, not a reference unit. Model files are versioned so a retrained model can be pushed to field units through OTA without a board swap.

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

Answer: The structure is deliberately two-speed: 1-3 days for a standard-variant sample so a Portugal project team can start immediately, and 15-30 days to mass production on a custom run once the design freezes. MOQ is 5,000 units per shipment on standard variants, with custom and pilot quantities negotiated against the annual volume commitment.

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

Answer: Certification is part of the customization scope, not an afterthought. The in-house file covers CE, FCC Part 15, UKCA, RoHS 2.0, REACH and IEC 62368-1 with test reports dated inside twelve months, plus GMS and EDLA tracks for custom Android and display products. The file is built for the exact configuration you ship, which matters for a custom board because a test report on a different memory fit is not a valid report at all.

How long will AndroidSBC keep supplying a custom board?

Answer: Seven years minimum, written into the framework agreement. The RK3588 platform carries a long industrial lifecycle, and Wanlin commits to the supply window, to security patches across the Android, Ubuntu LTS, Debian LTS and Yocto tracks, and to OTA update infrastructure for field-deployed units. For a custom board that is the whole point of going to a source factory: the product lifecycle is a contract term, not a hope.

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

Answer: Yes. AndroidSBC ships DDP to Amazon FBA warehouses in the US, EU and Japan, and to nominated 3PL consolidation points in Hong Kong, Singapore, Rotterdam, Los Angeles and Shenzhen. Carton labelling and pallet configuration follow FBA inbound requirements, the export declaration names the Wanlin Longgang source factory as the place of origin, and each pallet carries a per-unit barcode that traces back to the burn-in record for downstream RMAs.

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

Answer: Target DOA is 0.3 percent across twelve months. RMA works by returning the WF-C3588-K4 unit to Longgang with its burn-in barcode; replacements ship inside ten business days. Since each unit is traceable to its burn-in and configuration record, partners typically receive a root-cause note with the replacement rather than a silent credit.

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

AndroidSBC is the export channel for the Wanlin WF-C3588 custom board line. Buyers in Porto and Portugal looking to source the WF-C3588-K4 straight from the source factory can use any of the following:

• Email: Androidsbc@163.com
• Export service hotline: +8613261677119
• Website: https://www.androidsbc.com
• Destination market file: CE marking with ANACOM radio interface notification for Portugal, administered by ANACOM, entering at Port of Sines on the Sines to Yantian 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

The export desk asks for three things on a first enquiry: annual volume, customization scope and Incoterm. Provide those and a per-lot quote plus the WF-C3588 MOQ matrix comes back within two business days.