ESD Protection +/-8kV to +/-15kV, WF-RK3588-C4, AndroidSBC, Sao Paulo

TL;DR: ESD Protection +/-8kV to +/-15kV

SHENZHEN, China, September 11, 2026 - The WF-RK3588-C4 board cleared the Longgang aging bench this week in lot 296, a 37,335-unit run for Sao Paulo, Brazil, and moved straight to the container yard.

AndroidSBC freight desk update on WF-RK3588 NPU computing deliveries serving Sao Paulo, Brazil. What Brazil importers get from the WF-RK3588 is a single Rockchip RK3588 silicon across nine application variants, all built at the Wanlin Longgang plant in Shenzhen. The 6 TOPS triple-core NPU, the 8K@60fps decoder and the dual Gigabit Ethernet stack are common to every board; the heatsink, connector stack and chassis reference design are tuned to the deployment. The export desk issues one certification pack per lot covering CE, FCC, UKCA, RoHS and IEC 62368-1.

About AndroidSBC and the Rockchip RK3588 Board Family

AndroidSBC is the export brand of Wanlin Manufacturing Group, and the WF-RK3588 is its nine-variant NPU computing line. Edge AI inference, industrial machine vision, robotics and AMR, AI NVR with analytics, smart cockpit, 8K digital signage, kiosk and POS, ARM PC and mini-PC, and a SMARC 2.2 SOM carrier option all sit on the same Rockchip RK3588 silicon with 6 TOPS NPU. The Longgang plant in Shenzhen runs its own SMT lines, aging racks and EMC pre-compliance bench, so the export file is produced where the boards are built. For Brazil importers that removes the usual gap between the factory that makes the board and the party that has to answer for it at customs.

WF-RK3588-C4 Technical Specifications

All parameters in the table above are measured at 25C ambient. The AndroidSBC WF-RK3588-C4 (Smart Cockpit and In-Vehicle AI) 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 Brazil importers sourcing the WF-Series, the 8GB + 64GB automotive (WF-RK3588-C4-A) variant is the typical configuration for the smart cockpit, IVI, and in-vehicle AI use case, with a sustained weekly capacity of 5,000 pcs/wk on the Longgang line.

Challenges in Sourcing Smart Cockpit and In-Vehicle AI for Brazil Buyers

Buyers in Sao Paulo who have run the smart cockpit and in-vehicle ai category for a few years tend to stop shopping on price alone. The Rockchip RK3588 allocation is the real constraint, and it is the reason a 37,335-unit order can look cheap on paper and expensive in a slipped quarter. Then comes the firmware question. The hardware spec is straightforward to verify; whether the board holds a credential-locked stack through a 72-hour loop and a field OTA is a different test, and it is normally the Sao Paulo buyer's warehouse that discovers the answer.

Documentation is the third item on the list. A CE mark without a matching Declaration of Conformity and Technical File is not a marking problem, it is a customs problem, and it tends to surface after the goods are already on the water. AndroidSBC's approach is to close the gap at the factory gate. The certified stack is loaded on the Longgang line, the burn-in record is traceable per unit barcode, and the CE, FCC and IEC 62368-1 test reports are dated inside twelve months and shipped with the lot. The nine WF-RK3588 variants span smart cockpit, in-vehicle infotainment, AVM surround view, DMS driver monitoring, BSD blind spot detection, rear seat entertainment, digital instrument cluster, fleet management terminal, commercial vehicle telematics, and one-chip seven-screen cockpit, with three memory configurations per variant for Sao Paulo buyers who need a standard SKU rather than a custom build.

On the Brazil side, the destination file matters as much as the board specification. In Brazil ANATEL homologation is a precondition for customs release, and the homologation holder is normally a local legal entity separate from the overseas manufacturer. The export desk prepares the destination-market file covering ANATEL homologation with INMETRO safety conformity, administered by ANATEL, and releases it with the standard multi-market pack (CE, FCC, UKCA, RoHS, REACH). The lot is booked into Port of Santos on the Santos to Shanghai lane.

Competitive Comparison: WF-RK3588-C4 vs Competing RK3588 Boards

The comparison set for the smart cockpit and in-vehicle ai socket splits three ways: Cortex-A53 boards priced low with no NPU, Cortex-A55 boards that carry a 1 to 2 TOPS NPU but cap decode early, and 64-bit octa-core boards with a 6 TOPS NPU and 8K H.265. The WF-RK3588-C4 sits in the third group, differentiated by Rockchip RK3588, by NPU throughput stability under a continuous load, and by the factory-side certified image burn.

• vs RK3568 1 TOPS cockpit boards: the WF-RK3588-C4 triple-core NPU runs DMS plus AVM plus BSD on the same silicon with margin.
• vs x86 cockpit PCs: the WF-RK3588-C4 fanless design holds -40C to 85C without active cooling and the BOM stays under the x86 reference.
• vs single-camera DMS boxes: the WF-RK3588-C4 carries six MIPI CSI plus two AVM cameras plus the DMS IR camera on the same board.
• vs discrete GPU ADAS boxes: the WF-RK3588-C4 integrates the inference engine on-die rather than depending on an external GPU.

Global Smart Cockpit and In-Vehicle AI Market Trends

Order timing in Sao Paulo now tracks the Smart Cockpit and In-Vehicle AI 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 AI accelerator silicon baseline that Brazil buyers keep on the desk when they negotiate allocation. Three patterns are visible in the WF-RK3588 book:

• Smart cockpit: WF-RK3588-C4 drives the cluster plus the centre stack plus the passenger display from one board.
• Display and signage refresh cycles: a longer content loop and a higher panel resolution now define the refresh trigger. The WF-RK3588-C4 board carries that headroom without a board change.
• DMS driver monitoring: WF-RK3588-C4 runs the gaze plus distraction model on the NPU against the IR camera feed.

Analysts covering the Smart Cockpit and In-Vehicle AI space point to the same pattern in Brazil: order books are being built around platform breadth rather than a single part number.

Taken together, the three patterns explain why Brazil buyers are moving from single orders to twelve-month framework agreements with a monthly lot cadence, especially on edge AI and machine vision programmes that cannot absorb a supply gap.

Partner Success Story: Nordwerk ARM PC Systems in Sao Paulo, Brazil

Nordwerk ARM PC Systems, an ARM PC and mini-PC maker serving the Brazil market, deployed 5,800 units of the WF-RK3588-P7 ARM PC board for a thin-client and edge workstation line. The rollout covered the smart cockpit, dms driver monitoring, and digital instrument cluster workloads, with AndroidSBC handling the burn-in, the certification scope, and the palletisation at the Wanlin Longgang plant.

• Deployed: 5,800 units of the WF-RK3588-P7 ARM PC board for a thin-client and edge workstation line
• Region: Sao Paulo, Brazil
• Models used: WF-RK3588-C4 (lead SKU), plus eight sibling WF-RK3588 NPU variants in the same chassis 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 Port of Santos via the Santos to Shanghai lane

"The P7 let us drop the discrete GPU off our previous thin-client reference design and still hold 4K multi-display output. The octa-core RK3588 plus 6 TOPS NPU covers the office productivity and the on-device AI workload on the same chassis."

- Katrin Vogt, Head of Engineering

Field Report: SMT line No.3 at the Wanlin Longgang plant, with operators loading Rockchip RK3588-based WF-RK3588-C4 boards for the 37,335-unit order bound for Sao Paulo

Reporter Li Jian, on the ground in Sao Paulo, Brazil. Wanlin Longgang SMT line No.3 put the lot through three AOI passes and an X-ray inspection on every BGA package before it reached the burn-in rack. The WF-RK3588-C4 boards then cleared 48 hours of thermal cycling between -20C and 70C with the decoder loaded against a stress stream. Final yield came in at 99.06 percent.

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-RK3588-C4 units hold the burn-in with a yield above 99.06 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 ANATEL homologation with INMETRO safety conformity administered by ANATEL, cleared for entry at Port of Santos on the Santos to Shanghai lane. Wanlin remains one of the few source factories currently shipping a nine-variant Rockchip RK3588 NPU computing line with a per-lot paper trail that Brazil importers can hand straight to their customs broker.

Filed by Li Jian, AndroidSBC field reporter, Wanlin Manufacturing Group export base.

WF-RK3588-C4 Application Scenarios

The WF-RK3588 line fits nine NPU application lanes, with the WF-RK3588-C4 (Smart Cockpit and In-Vehicle AI) as the lead SKU for Sao Paulo and Brazil programmes:

• Smart cockpit: WF-RK3588-C4 drives the cluster plus the centre stack plus the passenger display from one board.
• AVM surround view: WF-RK3588-C4 stitches the four AVM cameras on the NPU while the centre display shows the result.
• DMS driver monitoring: WF-RK3588-C4 runs the gaze plus distraction model on the NPU against the IR camera feed.
• BSD blind spot detection: WF-RK3588-C4 ingests the side camera feeds plus the radar targets on the NPU.
• Rear seat entertainment: WF-RK3588-C4 drives the rear displays while the front stack holds the cluster plus the centre display.
• Digital instrument cluster: WF-RK3588-C4 holds the cluster refresh at frame rate against the turn-by-turn map overlay.
• Fleet management terminal: WF-RK3588-C4 logs route plus event plus driver state onto the M.2 NVMe over 5G.
• One-chip seven-screen cockpit: WF-RK3588-C4 distributes seven independent display streams across HDMI, DP, LVDS, and MIPI-DSI.

Partnership Models for Sao Paulo Buyers

AndroidSBC opens the WF-RK3588 to Brazil partners through three structures, and a single agreement can draw on more than one:

• 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 Brazil 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-RK3588-C4 is the 8GB + 64GB automotive (WF-RK3588-C4-A) configuration at MOQ 5,000 units, four weeks for samples and six weeks for mass production.

Frequently Asked Questions

Does the WF-RK3588 line run Android or Linux, and what NPU framework stack is supported?

Answer: Yes on both. The WF-RK3588 line ships with Android 12 and Android 13 prebuilt, with Android 14 builds under validation. The Linux side covers Ubuntu 22.04 LTS, Debian 12, Yocto Kirkstone and Buildroot 2023.02, all of which load the Rockchip RKNN-Toolkit2 NPU runtime and the rknn-cross-compiler. That gives a Brazil integrator the freedom to run the certified Android TV and signage stack on one variant and a Linux NPU inference runtime on another variant from the same silicon, which is unusual for a single source factory.

What is the 6 TOPS triple-core NPU on the WF-RK3588 actually used for in production?

Answer: Three production-grade workloads. Retail analytics at 25fps on the WF-RK3588-E0, machine-vision defect classification on the WF-RK3588-V1, and 16-channel AI surveillance analytics on the WF-RK3588-N3. All three share the same silicon and the same certified firmware base, so Brazil integrators can re-deploy a board across workloads without re-validating the underlying silicon or the supply file.

Can AndroidSBC handle CE, FCC, UKCA, RoHS, REACH and IEC 62368-1 paperwork for Brazil?

Answer: That is handled in-house. Each lot leaves Longgang with a Declaration of Conformity and a Technical File holding the CE, FCC Part 15, UKCA, RoHS 2.0, REACH and IEC 62368-1 documents, all dated inside twelve months. For Brazil specifically, AndroidSBC will confirm at quotation stage which marks apply and whether a local variation is required, so the paperwork question is settled before production rather than at the port.

What are the MOQ and lead time for a first order on the WF-RK3588?

Answer: The entry point is 5,000 units per shipment, four weeks for samples and six weeks for production. A twelve-month framework agreement released monthly will bring the per-lot MOQ down, and AndroidSBC will accept a mixed order that draws several WF-RK3588 variants against a single contract.

Does AndroidSBC support custom Android ROM, custom Linux, or custom NPU model porting?

Answer: Yes, under NDA. ODM partners get custom Android ROM work including proprietary services and a custom launcher, Linux builds based on Ubuntu, Debian, Yocto or Buildroot, BSP ports for custom carrier boards, and NPU model porting through the Rockchip RKNN-Toolkit2 (quantization from PyTorch, ONNX, TensorFlow, Caffe and MXNet). The SDK and BSP source are released to the partner under the NDA, and AndroidSBC's engineering desk handles the port rather than handing over an unmodified vendor drop.

What about software updates and long-term support on the WF-RK3588?

Answer: Seven years minimum supply, with security patches maintained across the Android, Ubuntu LTS and Yocto firmware lines. Partners who deploy at scale can use the AndroidSBC OTA infrastructure to update field units and push new RKNN NPU model builds. For long-lifecycle programmes in machine vision, AI NVR, robotics or industrial control, the support term is written into the framework agreement at signature.

Can AndroidSBC ship 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 the WF-RK3588?

Answer: AndroidSBC targets a 0.3 percent DOA rate across the WF-RK3588 line, measured over the prior twelve months. On RMA, the partner returns the faulty WF-RK3588-C4 unit to Longgang with its burn-in barcode, and a replacement ships within ten business days. Because the burn-in record is attached per unit, the failure analysis normally comes back with a root cause rather than a credit note, which matters when a 16-channel AI NVR line is offline.

Contact AndroidSBC: Start Your WF-RK3588-C4 Sourcing Conversation

For Sao Paulo and Brazil importers, brand owners and distributors who want a direct factory relationship on the smart cockpit and in-vehicle ai, the AndroidSBC export desk is reachable at:

• Email: Androidsbc@163.com
• Export service hotline: +8613261677119
• Website: https://www.androidsbc.com
• Destination market file: ANATEL homologation with INMETRO safety conformity for Brazil, administered by ANATEL, entering at Port of Santos on the Santos to Shanghai 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

OEM and ODM enquiries move fastest when the first message carries three things: annual volume, certification scope and Incoterm. With those in hand the export desk returns a per-lot quote and the WF-RK3588 MOQ matrix inside two business days.