Merryking Power

OEM/ODM Power Adapters — Factory Direct

20+ years manufacturing. 1W–600W range. Global certifications ready.

Certified for Global Markets UL, CE, FCC, PSE, KC, SAA and more — ship into any region without compliance delays
Full OEM/ODM Support Custom output, plug type, housing, and labeling — your brand, our engineering
Shenzhen + Dongguan Production Bases Dual-factory capacity ensures delivery stability for large or urgent orders
Low MOQ, Fast Sampling Prototype samples within days — test specifications before committing to volume
Medical & Industrial Grade Available IEC 60601 medical adapters and ruggedized industrial units in the same factory

Request a Quote or Sample

Tell us your power specs, quantity, and target market — we'll respond within 24 hours with pricing and availability.

Interchangeable Adapters – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking Interchangeable Adapters Hero – Merryking

One Adapter. Multiple Markets. Global Plug Ready.

Designed for global distribution — single platform, zero SKU duplication.

Global Certifications Plug Flexibility OEM Ready Design
Module 2 – Product Showcase – Merryking Module 2 – Product Showcase – Merryking

Merryking Interchangeable Adapters Series

From 5W to 65W — EU, US, UK and AU plug standards covered, with full OEM customisation available across the entire range.

MKA-DEXD 15W Max
Desktop Interchangeable Power Supply
MKC-DEXD 15W Max
USB-C GaN Interchangeable Charger
MKD-DEXD 15W Max
Medical-Grade Interchangeable Adapter
MKE2-DEXD 15W Max
Multi-Output Interchangeable Adapter
MKE-DEXD 15W Max
OEM Custom Interchangeable Adapter
MKF-DEXD 15W Max
Module 3 – Pain Points & Solutions – Merryking

Why Global Buyers Choose Interchangeable Plug Adapters

Common Procurement Pains
01
Different countries require different plugs
Every new market means a new SKU, new tooling, and separate inventory. Your product catalogue explodes before sales even begin.
02
Repeat certification = escalating cost
Running CE, UL, UKCA and FCC separately for each regional variant drains your compliance budget and delays launches by months.
03
Inventory pressure across regions
Overstock in one market, shortage in another. Regional-specific models create constant rebalancing headaches and working capital strain.
04
Slow regional launches cost you market share
New region = new product development cycle. Months of tooling, testing, and compliance delay your go-to-market while competitors move faster.
Merryking's Solution
One adapter body + interchangeable plug heads
Ship a single product platform to all markets. Swap EU, US, UK, or AU plugs in seconds — no rework, no separate model numbers required.
Certifications shared across the platform
Core compliance is tested once on the adapter body. Regional plug validation is lightweight — dramatically cutting your total certification spend.
Simplified, unified inventory model
One SKU, four plug packs. Consolidate warehouse space, reduce obsolescence risk, and respond to demand shifts without reprocuring.
Faster Market Entry
Launch into a new region by swapping the plug head — no new mould, no new tooling, no new compliance cycle. What used to take months of product iteration can now be handled in days at the distribution level.
Module 4 – How to Swap Plugs – Merryking Module 4 – How to Swap Plugs – Merryking

How to Swap Plugs on One Adapter

The plug head clicks into place with a secure locking mechanism. Switch between regions easily without tools or disassembly.

How to Swap Plugs on Merryking Interchangeable Adapter
Watch Demo
Secure Locking
Double-latch mechanism prevents accidental plug release during use
Tool-Free Swap
Plug heads click in and out in under 5 seconds — no tools required
Universal I/O
Barrel jack, USB-A, USB-C output options configured at order
OEM Branding
Custom logo, housing colour and label for both heads and body
Upload Your Image Here
Wall Mount – Certifications Module

Merryking Certifications

KC Certification
PSE Certification
GS Certification
UKCA Certification
SAA Certification
RoHS Certification
EAC Certification
CCC Certification
CB Certification
Wall Mount – Customization Steps Module

Customization Options for
Your OEM / ODM Project

Six product dimensions configurable to your specification — every option below has been executed in live production projects.

Output Voltage & Current

International Plug Types

Cable Length & Jacket

DC Output Connector

Housing Color & Shell

Brand Label & Logo

Interchangeable Adapters – Merryking (M6–M10 v2) Module 6 – Why Choose Merryking – Merryking

Why Global Buyers Choose Us

Behind every adapter we ship is two decades of OEM discipline, in-house tooling, and a supply chain built to hold when your customers are counting on you.

Direct Factory — Shenzhen Merryking OEM Factory
20+
Years OEM
800K+
Units / Month
70+
Countries
Direct Factory Supply
No middlemen. Communicate directly with production, engineering, and QC teams — eliminating markups and miscommunication across the supply chain.
20+ Years OEM Experience
Manufacturing OEM power adapters since 2003. Every process — from tooling to final QC — refined through thousands of B2B production runs.
Reusable Global Certifications
CE, UL, FCC, UKCA, CB, GS, PSE, KC — maintained and transferable to OEM projects. Ship globally without restarting compliance from scratch.
Stable Mass Production Quality
IQC/IPQC/OQC checkpoints and 100% Hi-Pot testing on every unit ensure your 10,000th piece meets the same standard as the first.
MOQ-Friendly for Wholesale
Standard platform starts at 500 pcs for OEM orders — suitable for distributors scaling from pilot to full rollout without excessive upfront volume commitments.
Real Customisation Capability
Custom output voltage, connector type, housing colour, and private-label branding — our in-house tooling team handles modifications most factories will decline.
Module 7 – Industries We Serve – Merryking

Industries We Serve

Our interchangeable adapter platform is already deployed across six key global industries — each with matching certifications and plug configurations.

EU / US / UK / AU
Consumer Electronics
Chargers and power supplies for tablets, laptops, and e-readers distributed across global retail markets. One SKU fits all regions.
International Distribution
Smart Home Devices
Hubs, sensors, and cameras shipped to residential markets worldwide. Interchangeable plugs simplify regional packaging and compliance.
CCTV · Access Control
Security Systems
IP cameras, NVRs, and access control deployed across different electrical standards. Stable 24/7 power is non-negotiable.
ICT · Networking
Networking Equipment
Routers, switches, and PoE injectors powering network infrastructure across multi-country deployments with consistent voltage output.
IEC 60601 Ready
Medical Devices
Diagnostic and monitoring instruments requiring medical-grade isolation and strict compliance. IEC 60601-1 certification pathway available.
LED · Display
LED Lighting & Display
Constant-current and constant-voltage drivers for LED strips and signage distributed to retail and commercial markets across all regions.
Wall Mount – Factory Snapshot Module

Factory Snapshot

From component intake to outgoing inspection — every unit built and shipped under our own roof.

Module 9 – Trusted By Global Partners – Merryking Module 9 – Trusted By Global Partners – Merryking Module 9 – Trusted By Global Partners – Merryking

Trusted By Global Partners

"
We switched to Merryking's interchangeable platform two years ago and cut our SKU count for EU and US markets from 8 down to 2. The CE and UL documentation came ready to use — transition took one production cycle.
MR
Marcus R.
Head of Procurement, NEXUS Distribution
EU / US Retail Distribution
"
Stable supply for 3+ years across all our smart home SKUs. The OEM branding is clean and our retail buyers haven't flagged a quality concern once. Merryking is the easiest factory to work with at this volume level.
SL
Sophie L.
Supply Chain Director, ARCLINE Smart Systems
Stable Supply · 3+ Years
"
As a first-time OEM buyer entering the EU market, Merryking had the CE certification ready and walked our team through the documentation process. We passed customs without a single delay on our first shipment.
DK
David K.
Co-Founder, CLARIX IoT Devices
OEM · First EU Launch
Module 10 – Final CTA – Merryking FAQ – Interchangeable Adapters – Merryking

Frequently Asked Questions

Can I order a single adapter platform that works across EU, US, UK, and AU plug standards?

Yes. Our interchangeable adapter platform is built around one universal adapter body that accepts four plug head types — EU (CEE 7/4), US (NEMA 1-15), UK (BS 1363), and AU (AS/NZS 3112). You maintain a single SKU and simply specify which plug heads are required per shipment. No separate tooling, no separate model numbers, and no new certification process for each region.

What certifications does the interchangeable adapter platform carry, and can they be transferred to my OEM brand?

The platform holds CE, UL, FCC, CB, UKCA, GS, PSE, and KC certifications on the core adapter body. For OEM projects, these certifications are transferable in most cases with only a label-change declaration — meaning you do not need to restart the compliance testing process from scratch. Our compliance team provides full documentation support, including test reports ready for customs brokers and retail buyer audits.

What is the minimum order quantity (MOQ) for a custom OEM interchangeable adapter?

Our standard MOQ for OEM interchangeable adapters is 500 pieces per order. For off-the-shelf configurations with standard plug heads and output specs, the MOQ is 1,000 pieces. If you are evaluating the platform before committing to volume, we offer pre-production samples — contact our team to arrange a sample request with your target spec.

Can I customise the output voltage, current, and connector type for my specific device?

Yes. The adapter body supports customisable output voltage (5V, 9V, 12V, 15V, 19V, 24V are standard options), output current up to 3.5A, and output connector type — including barrel jack (various tip configurations), USB-A, and USB-C. Housing colour, surface finish, and OEM label are all configurable. Our engineering team reviews your device spec and recommends the correct configuration before production is confirmed.

How long does it take from order confirmation to delivery for a first OEM run?

For standard configurations on our existing platform, lead time is typically 20–30 working days from order confirmation and deposit receipt. For configurations requiring new output specs or custom housing, allow 30–45 working days to include engineering review and pre-production sample approval. We provide a firm production schedule at the time of order confirmation and maintain proactive updates throughout the production cycle.

Is it possible to get a pre-production sample to evaluate quality before placing a bulk order?

Absolutely. We strongly encourage sample evaluation before bulk commitment. Standard platform samples can be dispatched within 5–7 working days. For custom-spec samples, lead time is 15–20 working days depending on the extent of modification required. Sample units include the adapter body and your selected plug head types, fully assembled and ready for functional and compliance testing at your end.

Does the plug head swap mechanism meet safety standards? Will it hold securely during normal device use?

Yes. The plug head attachment uses a double-latch locking mechanism that is tested to withstand plug insertion forces and vibration in line with IEC 62368-1 safety requirements. The locking interface is part of the certified adapter body design — meaning the plug security is included in, not separate from, the compliance scope. Tool-free field swaps are supported, but the lock cannot be accidentally released during normal operation. Each plug head carries its own regional certification mark (CE, UL, UKCA, SAA) independently.

Don't see your question? Our technical team is ready to provide immediate answers.

Start Your Global
Power Solution Today

Whether you're entering a new region, consolidating a fragmented power supply line, or building your first OEM product — our interchangeable adapter platform gets you to market faster, at lower cost, with compliance built in.

Free Sample Available
Evaluate build quality and plug mechanism before committing to a production order
Fast OEM Customisation
Custom branding, output voltage, and connector confirmed in days — not weeks
Engineering Support Included
Direct access to our technical team for spec, compliance, and integration queries
Get a Quote in 24 Hours
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