RK3588 PCIe 3.0 Custom Expansion Board, WF-C3588-M2, AndroidSBC, Lagos

TL;DR: RK3588 PCIe 3.0 Custom Expansion Board

SHENZHEN, China, September 12, 2026 - Wanlin Longgang released a 11,960-unit WF-C3588-M2 lot for Lagos, Nigeria this week, the 264th run booked against the Rockchip RK3588 allocation.

AndroidSBC opens the custom RK3588 motherboard platform to overseas OEM buyers and industrial integrators serving Lagos, Nigeria. The WF-C3588 line is a custom motherboard programme built on the Rockchip RK3588 octa-core platform (4x Cortex-A76 at 2.4GHz plus 4x Cortex-A55 at 1.8GHz on 8nm) with a triple-core NPU delivering 6 TOPS of INT8 inference, 8K H.265 decode and up to 32GB of LPDDR4X or LPDDR5. AndroidSBC, the export arm of Wanlin Manufacturing Group, builds nine custom variants at the Longgang source factory in Shenzhen for Lagos and Nigeria buyers: WF-C3588-A0 custom Android motherboards, WF-C3588-I1 custom industrial boards, WF-C3588-M2 core boards and SOMs with carrier design, WF-C3588-S3 custom signage and video wall boards, WF-C3588-K4 custom kiosk and POS boards, WF-C3588-R5 custom robotics controllers, WF-C3588-N6 custom NVR boards, WF-C3588-E7 custom edge AI boards, and WF-C3588-P8 custom ARM PC and NAS boards.

About AndroidSBC and the Rockchip RK3588 Board Family

The WF-C3588 exists because Nigeria buyers kept asking one supplier for two different custom board tiers. Wanlin Manufacturing Group answered by putting nine custom variants on the same Rockchip RK3588 octa-core silicon with 6 TOPS NPU, 8K H.265 video and up to 32GB of LPDDR5. The group runs SMT, burn-in and pre-compliance testing in one Longgang building in Shenzhen, and the export desk holds the certification file rather than passing it back to the importer. For a Lagos distributor that means one vendor file, one document format and one MOQ structure across the custom variants it sells.

WF-C3588-M2 Technical Specifications

All parameters in the table above are measured at 25C ambient. The AndroidSBC WF-C3588-M2 (Custom Core Board SOM with Carrier Board Design Service) 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 Nigeria importers sourcing the WF-Series, the 16GB + 64GB (WF-C3588-M2-C) variant is the typical configuration for the custom core board and SOM plus carrier programmes use case, with a sustained weekly capacity of 5,000 pcs/wk on the Longgang line.

Challenges in Sourcing Custom Core Board SOM with Carrier Board Design Service for Nigeria Buyers

The recurring problem for Lagos and Nigeria buyers sourcing a custom core board som with carrier board design service is not the headline unit price, it is whether the allocation actually holds. The Rockchip RK3588 needs its own wafer slot, and brokers who quote from stock frequently cannot honour that slot once a 11,960-unit push lands mid-quarter. The software question follows immediately. The hardware spec sheet is easy to verify; the difference between a board that runs a launcher and a board that holds a certified, credential-locked stack only becomes visible after the first field update.

Documentation closes the list. Buyers in Lagos have learned to ask for the test reports before the deposit, because a CE mark printed on a carton is worth nothing at the port without the Declaration of Conformity behind it. AndroidSBC handles it by doing the custom I/O build, the software burn and the documentation at the factory: every lot leaves Longgang with the certified image loaded, a unit-level burn-in barcode, and a Technical File that carries the test reports. The nine WF-C3588 custom variants cover SMARC 2.2 modules, stamp-hole core boards, LGA core boards, COM Express carriers, medical imaging terminals, robotics compute modules, custom carrier designs, and OEM development kits with three memory configurations each, which means a Lagos integrator can usually match a customer requirement without a bespoke production run.

Compliance for Nigeria is handled at the factory rather than after arrival. In Nigeria SONCAP clearance at the port is mandatory and NCC type approval applies to wireless product, so both files have to be in place before shipment. The Longgang export desk builds the destination-market file for SONCAP clearance with NCC type approval for wireless product administered by SON / NCC and issues it alongside the standard multi-market pack (CE, FCC, UKCA, RoHS, REACH), with the shipment booked into Apapa Port, Lagos on the Apapa to Ningbo lane.

Competitive Comparison: WF-C3588-M2 vs Competing RK3588 Boards

Three groups of board compete for the custom core board som with carrier board design service socket. The first is catalogue silicon sold on price with no customization route and no certification file. The second is re-badged stock where the seller cannot produce a schematic or a test report. The third is a genuine custom platform on Rockchip RK3588 with the engineering desk, the burn-in rack and the certification file in one Longgang building. The WF-C3588-M2 sits in the third group.

• vs standard SOM catalogues: the WF-C3588-M2 either matches SMARC 2.2 exactly or the carrier is redesigned around the project, so the module never forces the product.
• vs two-vendor module plus carrier splits: core board and carrier come from one desk, one schematic review and one test plan, which removes the finger-pointing stage entirely.
• vs closed-module vendors: BSP source, SDK and documentation ship with the project, so a customer engineering team can maintain the carrier after delivery.
• vs re-branded modules: the SI report and the thermal map are Longgang documents, not forwarded PDFs from a third party.

Global Custom SOM and Core Board Market Trends

The Custom SOM and Core Board market is the frame that decides how Nigeria importers time their custom core board som with carrier board design service orders. The figure most Nigeria buyers quote when they argue about allocation is the Edge AI hardware segment, which MarketsandMarkets sizes at USD 26.9 billion in 2025 with a 32.7 percent CAGR to USD 108.2 billion by 2030 (MarketsandMarkets, Edge AI Hardware Market Report, 2025-2030); it is the public proxy for the RK3588-class silicon that custom board buyers compete for, not a forecast for this category. For Lagos, three buying patterns are shaping the WF-C3588 order book:

• Medical imaging terminal: a device maker keeps its regulatory file intact by swapping the core board and reusing the validated carrier.
• Display and signage refresh cycles: a longer content loop and a higher panel resolution now define the refresh trigger. The WF-C3588-M2 board carries that headroom without a board change.
• Custom SMARC migration: a legacy SMARC installation moves to RK3588 with a pin-compatible carrier revision and keeps the enclosure.

For the Custom SOM and Core Board category the practical signal in Nigeria is that framework agreements are replacing spot buying, and the agreements are getting longer.

In all three cases, Lagos buyers are converting spot quotes into blanket orders with a monthly lot release, because a custom motherboard programme that has to hold a twelve-month shipping window cannot tolerate a mid-year allocation break.

Partner Success Story: Trident Vending in Lagos, Nigeria

Trident Vending, a smart vending operator serving the Nigeria market, deployed 5,400 custom WF-C3588-K4 vending machine boards for an unattended retail estate. The rollout covered the medical imaging terminal, custom smarc migration, and machine vision carrier workloads, with AndroidSBC handling the burn-in, the certification scope, and the palletisation at the Wanlin Longgang plant.

• Deployed: 5,400 custom WF-C3588-K4 vending machine boards for an unattended retail estate
• Region: Lagos, Nigeria
• Models used: WF-C3588-M2 (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 Ningbo-Zhoushan with the Wanlin Group Longgang source factory named on the export declaration, entering Apapa Port, Lagos via the Apapa to Ningbo lane

"The shelf-camera stock check on the NPU cut our route visits by a third, and the multi-serial profile drives the coin and note units without adapter boxes. When a board does fail, the burn-in barcode gets us a root-cause note with the replacement."

- Marco Bellini, IT Infrastructure Lead

Field Report: a school district rollout in Lagos, where 11,960 units of the WF-C3588-M2 board are being installed in classroom device carts

Reporter Lin Yu, on the ground in Lagos, Nigeria. The district took delivery of the order and dispatched installation crews to eight sites. Each WF-C3588-M2 unit was sealed into a ruggedised chassis running a managed Android image with the education services stack pre-provisioned for the district tenant, and the fleet enrolled against the MDM the same week.

The plant maintenance log showed no unscheduled stoppage on the Rockchip RK3588 line during the lot, which the production manager attributed to the AOI pass added last quarter.

The inspection confirmed three things on the spot: the WF-C3588-M2 units hold the burn-in with a yield above 99.35 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 SONCAP clearance with NCC type approval for wireless product administered by SON / NCC, cleared for entry at Apapa Port, Lagos on the Apapa to Ningbo 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 Nigeria importers can hand straight to their customs broker.

Filed by Lin Yu, AndroidSBC field reporter, Wanlin Manufacturing Group export base.

WF-C3588-M2 Application Scenarios

The WF-C3588 line fits nine custom motherboard lanes, with the WF-C3588-M2 (Custom Core Board SOM with Carrier Board Design Service) as the lead SKU for Lagos and Nigeria programmes:

• Medical imaging terminal: a device maker keeps its regulatory file intact by swapping the core board and reusing the validated carrier.
• Robotics compute module: an AMR maker takes the stamp-hole core board and designs a slim carrier for a new chassis generation.
• Custom SMARC migration: a legacy SMARC installation moves to RK3588 with a pin-compatible carrier revision and keeps the enclosure.
• OEM development kit: a product team gets the reference carrier, the SDK and the BSP source and prototypes before committing to tooling.
• LGA core board programme: a display brand solders the core board directly onto its own mainboard for a locked BOM.
• Machine vision carrier: a vision integrator routes MIPI CSI-2 lanes to four cameras and lets the NPU carry the inspection model.
• Fleet compute module: a telematics supplier builds one carrier for three vehicle programmes and swaps memory options per contract.
• Lab instrumentation: an instrument maker keeps a decade-old enclosure alive by replacing only the core board and the BSP.

Partnership Models for Lagos Buyers

AndroidSBC runs three engagement tiers for Nigeria importers and brand owners sourcing a custom core board som with carrier board design service on the WF-C3588 custom line:

• 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.

Every tier draws on the same Longgang line and the same certification desk. A Lagos first order on the WF-C3588-M2 normally lands on the 16GB + 64GB (WF-C3588-M2-C) configuration at MOQ 5,000 units per shipment, with standard samples in 1-3 days and a 15-30 day mass-production window on custom builds.

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: Yes, and that work stays in-house. The ODM tier covers custom Android ROM builds with proprietary services and launchers, AOSP builds without Google services, and Linux images on Ubuntu, Debian, Yocto or Buildroot. BSP ports for custom carrier boards are executed by the Longgang engineering desk, with SDK and BSP source released to the partner under NDA. The same desk handles driver development for the I/O you added, which is the part that usually stalls when a factory forwards a vendor drop and walks away.

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 Nigeria 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 Nigeria, 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: That is routine. AndroidSBC delivers DDP into Amazon FBA in the US, EU and Japan and into 3PL consolidation points at Hong Kong, Singapore, Rotterdam, Los Angeles and Shenzhen. Carton and pallet configuration follows FBA inbound rules, and the place of origin on the declaration is the Wanlin Longgang source factory.

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-M2 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 Nigeria integrator running a custom configuration actually needs.

Contact AndroidSBC: Start Your WF-C3588-M2 Sourcing Conversation

The AndroidSBC export desk handles all WF-C3588 enquiries from Lagos and Nigeria. Direct factory contact for the custom core board som with carrier board design service is available through:

• Email: Androidsbc@163.com
• Export service hotline: +8613261677119
• Website: https://www.androidsbc.com
• Destination market file: SONCAP clearance with NCC type approval for wireless product for Nigeria, administered by SON / NCC, entering at Apapa Port, Lagos on the Apapa to Ningbo 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

For a customization conversation, it helps to state the target annual volume, the I/O and memory changes required, the certification scope (CE, FCC, UKCA, RoHS, REACH, IEC 62368-1, GMS, EDLA or EN 55032 plus EN 55035), and the preferred Incoterm (FOB Yantian, FOB Shekou, CIF, DDP, or DDP-Amazon). The export team returns a per-lot quote plus the variant-by-variant MOQ matrix for the WF-C3588 line within two business days.