Round Pin Charger
Overview
Product sourcing insights & recommendations


The "round pin charger" market, technically known as the DC barrel connector market, is experiencing a resurgence in 2026 driven by the growth of portable power stations and compact IoT devices. While universal standards like USB-C are dominant for mobile phones, round pin connectors remain the preferred choice for high-power (8mm) and static device applications (5.5mm) due to their stability and low manufacturing cost.
Key Market Trends & Insights (2026)
* Segmented Growth: The global charger connector market is projected to reach $3 billion by 2026, growing at a 7.5% CAGR China-Amass.
* Regional Demand Shifts: High interest has been observed in solar energy markets where 8mm (DC7909) connectors are standard for portable power stations UdpwrUdpwr.
* Consumer Preferences: Buyers are increasingly moving toward IP65-rated waterproof connectors for outdoor security cameras and medical devices Udpwr.
* Technical Refinement: Modern round pins now support higher mating cycles (5,000+) and feature gold-plated contacts to prevent overheating during fast charging Cfeconn.
Product & Supplier Shortlist
I have identified several specialized manufacturers in Dongguan and Changzhou that offer full customization for barrel sizes ranging from 2.1mm to 8mm. The list below includes options for both ready-to-ship adapters and customized industrial solutions.
Round Pin Charger Dc Barrel Connector Adapter 5.5mm 2.1mm 2.5mm 8mm
Products · 2 lists

Barrel DC Jack 12V Connector Charging DC Pin Adapters Male Female Plug DC Power Connectors
Dongguan Swan Electronic Co., Ltd.🇨🇳CN6 yrs
Factory Directly Supply 5.5mm 2.1 mm Male Barrel DC Adapter Plug 5.5 *2.5 Male and Female 12V 24V DC Pin Power Connector
Dongguan Swan Electronic Co., Ltd.🇨🇳CN6 yrs
Male Female Plug DC5.5 X 2.5mm 5.5*2.1mm Barrel Connector Power Pigtail Cable
Shenzhen Lemon Electronics Co., Ltd.verified🇨🇳CN7 yrs
Length Custom 12V DC5.5x2.1mm Barrel Plug Connector Male to Female Extension Cable
Shenzhen Lemon Electronics Co., Ltd.verified🇨🇳CN11 yrs
Wholesale DC Power Jack 5.5*2.1/2.5mm Female to Power Plug 2.0*0.6mm Male Barrel Connector for Portable Device Power Supply
Shenzhen Weixunda Electronic Technology Ltd.🇨🇳CN4 yrs
DAJIANG 90 Degree 5V Female USB-C DC Barrel Connector Adapter Charging Plug for Laptop USB Type-C 6 Router Direct Manufacturer
Dongguan Dajiang Electronics Co., Ltd.verified🇨🇳CN17 yrs
DC7909 Connector DC 8mm 16AWG 30cm 12V 24V DC 7.9mm X 5.5mm Barrel Connector Cable
Shenzhen Ruitexun Technology Co., Ltd.🇨🇳CN6 yrs
90 Degree 5V Female USB-C to Male DC Barrel Connector 3.0x1.1mm 3.5x1.35mm 4.0x1.7mm 4.8x1.7mm 5.5x2.1mm 5.5x2.5mm Hot Selling
Shenzhen Longgang District Xr Electronics Factory🇨🇳CN1 yr
High Quality DC Barrel Adapter Power Jack Female 7.4*5.0mm to 5.5*2.5mm Male Power Plug for HP Lenovo Laptop DC Charger Cable
Shenzhen Weixunda Electronic Technology Ltd.🇨🇳CN4 yrs
USB Port to 2.5*0.7mm 3.5*1.35mm 4.0*1.7mm 5.5*2.1mm 5V DC Barrel Jack Power Cable Connector
Shenzhen Wengo Electronic Technology Co., Ltd.🇨🇳CN14 yrs
DIY 5.5 mm X 2.1 mm 5.5*2.1 mm DC Power Plug Female Wire Cable Solder Connector Adapter Barrel
Shenzhen Lingxinhui Technology Co., Ltd.🇨🇳CN2 yrs
Dc5521mm Barrel Connector 12v 24v Dc 5.5mm Jack Plug Cable Dc Extension Cable Dc Power Cable
Dongguan Fengjin Electronics Co., Ltd.verified🇨🇳CN6 yrs
5.5x2.1mm Universal Laptop Charger DC Connector Jack Power Socket DC Barrel Jack Adapter Plug Adapter Cantell CA-TE952
Foshan Cantell Electronic Co., Ltd.verified🇨🇳CN8 yrs
5.5x2.1mm Male/Female Dc Power Adapter Barrel Connector

Factory 5.5*2.1mm Barrel Connector 12V 24V Dc 5.5mm Jack Plug Cable Dc Extension Cable Dc Power Cable
Meizhou Juncheng Technology Co., Ltd.🇨🇳CN7 yrs
DC Socket 5.5mm X 2.1mm Male DC Barrel Jack Solder Power Adapter for CCTV DVR Camera
Shenzhen Eborm Technology Co., Ltd.🇨🇳CN8 yrs
5.5x2.1mm Female to 5.5x2.5mm Plug Male DC Power Barrel Jack Connector Adapter
Shenzhen Ciaok Electronices Co., Ltd.🇨🇳CN9 yrs
Factory Direct Sale Computace ZSA5016 DC Barrel Adapter 1P 5.5x2.1mm to 6.0x4.4mm 20V 4.7A Power Male
COMPUTACE ELECTRONIC COMPANY LIMITED🇭🇰HK4 yrs
DC Plug Male Power Jack Connector Adapter Barrel Terminal For Electronic Device CCTV Security Camera Power Supply Cord Wire
PANKAJ PRODUCTS🇮🇳IN1 yr
DC Connector 5521 5525 Male Female Cable Quick Connect Power Plug Adapter Wire for LED CCTV
Shenzhen Aohua Electric Corporation Limitedverified🇨🇳CN10 yrs
10pcs Male Female DC 5V 12V 5.5X2.1 5.5x2.5mm DC Power Jack Plug Adapter Barrel Connector for CCTV Security Camera Led Strip10
Shenzhen Yongyetai Electronics Co., Ltd.🇨🇳CN5 yrs
5.5 X 2.1mm DC Power Jack Threaded Female Panel Mount Barrel Connector Adapter Kit with Cover Cap OLA012
Shenzhen Jiajiayuan Electronic Co., Ltd.🇨🇳CN6 yrs
10pcs Male Female DC 5V 12V 5.5X2.1 5.5x2.5mm DC Power Jack Plug Adapter Barrel Connector for CCTV Security Camera Led Strip10
Shenzhen Lonten Technology Co., Limited🇨🇳CN13 yrs
12V 24V DC Barrel Plug Connector 2.1mm X 5.5mm DC Male&Female Plug to Bare Wire Open End Power Wire for CCTV
Shenzhen Lemon Electronics Co., Ltd.verified🇨🇳CN7 yrs
Male Female DC 5V 12V 5.5X2.1 5.5x2.5mm DC Power Jack Plug Adapter Barrel Connector for CCTV Security Camera Led Strip

Dc5.5*2.1mm Male Female Barrel Connector With 5a Fuse to Pigtail End Dc Power Cable 2468
Dongguan Fengjin Electronics Co., Ltd.verified🇨🇳CN6 yrs
Factory 5.5*2.1mm Barrel Connector 12V 24V Dc 5.5mm Jack Plug Cable Dc Extension Cable Dc Power Cable
Shenzhen Ruize Technology Co., Ltd.verified🇨🇳CN9 yrs
DC5.5*2.1mm Barrel Connector 12V 24V Dc 5.5mm*2.1mm Jack Plug Cable Dc Extension Cable Dc Power Cable for LED Strip Light
Dongguan Cunshang Precision Technology Co., Ltd.🇨🇳CN5 yrs
DC5.5*2.1mm Barrel Connector 12V 24V Dc 5.5mm*2.1mm Jack Plug Cable Dc Extension Cable Dc Power Cable for LED Strip Light
ApexCore HK Technology Limited🇭🇰HK1 yr
90 Degree Type-C to DC Barrel Jack Adapter 5V 3A, Universal Charging Connector for Adult Toys with 2.0/2.5mm Solid/Hollow Tips
Dongguan Yixin Industrial Co., Ltd.🇨🇳CN5 yrsRelated Searches
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Sources & References
27 sources cited · Verified industry data & reports

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