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Small Hole Charger

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Reddit · r/cableadvice
Amazon.com
25 来源

The 'small hole charger' refers to a variety of DC barrel connectors (such as the 2.0mm Nokia-style pin or 3.5mm round jacks) used for small electronics like electric toothbrushes, mini fans, and legacy mobile phones. While the market is rapidly shifting toward USB-C standardization by 2026 due to global regulations, there remains a significant $9.66 billion portable charger market where legacy adapters and bridging cables (Type-C to DC) continue to see steady demand.

I have compiled a comprehensive market trend and product insight report below, which details the technical specifications, growth drivers like GaN technology, and the transition toward universal charging solutions.

I've analyzed the 'small hole charger' market and trends for 2026. You can continue with:

Small Hole Charger Dc 2.0mm 2.5mm 3.5mm Round Pin Charger Cable For Electronics

Products · 3 lists

Round hole charging cable USB to DC2.0/2.5/3.5/5.5MM interface power data cable universal charger cable

Round hole charging cable USB to DC2.0/2.5/3.5/5.5MM interface power data cable universal charger cable

$0.18-0.384.9(211)
MOQ: 10 pieces
DC 2.0mmDC 2.5mmDC 3.5mm800+ store reviews16% reorder rate≤8h response time
Shenzhen Jiexing Weiye Electronic Co., Ltd.Shenzhen Jiexing Weiye Electronic Co., Ltd.🇨🇳CN16 yrs
USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

$0.2178-0.4954.7(480)
MOQ: 2 pieces
DC 2.0mmDC 2.5mmDC 3.5mm12% reorder rate≤3h response time
Shenzhen Shengdingtong Technology Co., Ltd.Shenzhen Shengdingtong Technology Co., Ltd.verified🇨🇳CN1 yr
USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

$0.2178-0.4954.8(867)
MOQ: 2 pieces
DC 2.0mmDC 2.5mmDC 3.5mm50+ store reviews12% reorder rate≤2h response time
Shenzhen Pinkuo Trading Co., Ltd.Shenzhen Pinkuo Trading Co., Ltd.🇨🇳CN2 yrs
USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

$0.20-0.504.8(878)
MOQ: 5 pieces
DC 2.0mmDC 2.5mmDC 3.5mm100+ store reviews≤10h response time
Shenzhen Ruiqi Electronic Co., Ltd.Shenzhen Ruiqi Electronic Co., Ltd.🇨🇳CN5 yrs
USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

USB A Male to 2.0-5.5mm Connector DC 5V Charger Power Cable Adapter Cord Power Supply Cable Black

$0.22-0.504.7(345)
MOQ: 5 pieces
DC 2.0mmDC 2.5mmDC 3.5mm700+ store reviews4% reorder rate
Shenzhen Ruiqi Electronic Co., Ltd.Shenzhen Ruiqi Electronic Co., Ltd.🇨🇳CN8 yrs
Dc Charging Cable 2A 1M Usb 2.0 a Male to Six 3.5*1.35mm DC Plug Charger 24AWG DC Y Splitter Power Cable

Dc Charging Cable 2A 1M Usb 2.0 a Male to Six 3.5*1.35mm DC Plug Charger 24AWG DC Y Splitter Power Cable

$1.304.9(757)
MOQ: 100 pieces
DC 2.0mmDC 2.5mmDC 3.5mm19% reorder rate≤11h response time
Changzhou Feixun E-Commerce Co., Ltd.Changzhou Feixun E-Commerce Co., Ltd.🇨🇳CN1 yr
5 1 USB DC Fast Charging Cable | 5 Tips (5.5mm/4.0mm/3.5mm/2.5mm/2.0mm) | 1M 20cm Lengths | Computer Earphone Use | Black/White

5 1 USB DC Fast Charging Cable | 5 Tips (5.5mm/4.0mm/3.5mm/2.5mm/2.0mm) | 1M 20cm Lengths | Computer Earphone Use | Black/White

$0.48-0.664.8(234)
MOQ: 500 pieces
DC 2.0mmDC 2.5mmDC 3.5mm100+ store reviews16% reorder rate≤1h response time
Shenzhen Yangtse Tech Co., Ltd.Shenzhen Yangtse Tech Co., Ltd.🇨🇳CN12 yrs
5.5*2.5mm 12V Powered Usb to Dc Connector Charging Cable

5.5*2.5mm 12V Powered Usb to Dc Connector Charging Cable

$0.49-0.894.8(967)
MOQ: 100 pieces
DC 2.0mmDC 2.5mmDC 3.5mm
Shenzhen All-Define Electronic Technology Co., Ltd.Shenzhen All-Define Electronic Technology Co., Ltd.verified🇨🇳CN18 yrs
USB to DC 5V 3A Charging Cable Round Hole 5521/4.0/3.5/2.5 Fan Speaker Cable for Toy Router Connector Accessories

USB to DC 5V 3A Charging Cable Round Hole 5521/4.0/3.5/2.5 Fan Speaker Cable for Toy Router Connector Accessories

$0.10-15.0(332)
MOQ: 300 pieces
DC 2.5mmDC 3.5mm100+ store reviews37% reorder rate≤4h response time
Dongguan Yahua Electronic Co., Ltd.Dongguan Yahua Electronic Co., Ltd.🇨🇳CN4 yrs
5V USB to DC Power Cable USB Type a Male to DC Male Plug Extension Cable Jack 5.5*2.5mm 5.5*2.1mm 2.5*0.7mm 3.5*1.35mm 4.0*1.7mm

5V USB to DC Power Cable USB Type a Male to DC Male Plug Extension Cable Jack 5.5*2.5mm 5.5*2.1mm 2.5*0.7mm 3.5*1.35mm 4.0*1.7mm

$0.674.9(308)
MOQ: 200 pieces
DC 2.5mmDC 3.5mm2000+ store reviews28% reorder rate≤4h response time
Shenzhen Yi Xiongyi Di Trading Co., Ltd.Shenzhen Yi Xiongyi Di Trading Co., Ltd.verified🇨🇳CN5 yrs
Factory Wholesale 12V Usb 3.1 Type C to Dc 5525 5521 Power 5v 9v 12v 15v 20v 3a Usb-c PD Power Charge Cable for Wifi Routers

Factory Wholesale 12V Usb 3.1 Type C to Dc 5525 5521 Power 5v 9v 12v 15v 20v 3a Usb-c PD Power Charge Cable for Wifi Routers

$0.72-0.755.0(565)
MOQ: 100 pieces
DC 2.5mmDC 3.5mm50+ store reviews10% reorder rate≤5h response time
Shenzhen Mo-Tech Electronic Co., Ltd.Shenzhen Mo-Tech Electronic Co., Ltd.🇨🇳CN5 yrs
USB to DC 5.5/4.0/3.5/2.5 Lamp Toy Router 3A Charging Cable DC Power Cable

USB to DC 5.5/4.0/3.5/2.5 Lamp Toy Router 3A Charging Cable DC Power Cable

$0.40-0.674.8(651)
MOQ: 1 piece
DC 2.5mmDC 3.5mm1600+ store reviews10% reorder rate≤2h response time
Dongguan Fengjin Electronics Co., Ltd.Dongguan Fengjin Electronics Co., Ltd.verified🇨🇳CN6 yrs
Round Hole Charging Cable 5V to 9V12V Power boost Cable USB to DC5.5-2.1/3.5/4017MM Interface

Round Hole Charging Cable 5V to 9V12V Power boost Cable USB to DC5.5-2.1/3.5/4017MM Interface

$1.754.6(778)
MOQ: 1 piece
DC 3.5mm200+ store reviews5% reorder rate≤1h response time
Shenzhen Dangjie Technology Co., Ltd.Shenzhen Dangjie Technology Co., Ltd.🇨🇳CN2 yrs
5V USB to DC Charging Cable 5.5*2.1mm 5.5mm X 2.5mm 3.5x1.35mm Pure Copper DC Power Cable for Barcode Scanner

5V USB to DC Charging Cable 5.5*2.1mm 5.5mm X 2.5mm 3.5x1.35mm Pure Copper DC Power Cable for Barcode Scanner

$1.504.8(544)
MOQ: 50 pieces
DC 2.5mm50+ store reviews14% reorder rate≤3h response time
Shenzhen Lcr Industries Technology Co., Ltd.Shenzhen Lcr Industries Technology Co., Ltd.🇨🇳CN10 yrs
USB to DC 3.5*1.3/1.35mm Power Cord/Charging Cable 5V Charging Cable Copper Core Adapter Cable

USB to DC 3.5*1.3/1.35mm Power Cord/Charging Cable 5V Charging Cable Copper Core Adapter Cable

$0.114.8(652)
MOQ: 5 pieces
DC 3.5mm300+ store reviews11% reorder rate≤2h response time
Shenzhen Yuandongan Electronics Co., Ltd.Shenzhen Yuandongan Electronics Co., Ltd.🇨🇳CN5 yrs
USB to DC5.5*2.1mm charging cable Usually 12V power supply supports 3A router USB power cable

USB to DC5.5*2.1mm charging cable Usually 12V power supply supports 3A router USB power cable

$0.22-0.604.8(462)
MOQ: 1 piece
DC 3.5mm300+ store reviews8% reorder rate≤7h response time
Shenzhen Goldtech Electronics Co., LimitedShenzhen Goldtech Electronics Co., Limitedverified🇨🇳CN7 yrs
3.5*1.35mm USB to DC 3.5mm Power Cable USB to 3.5 Jack Connector DC Power Supply Charger Adapter for Hub USB Fan Charging Cable

3.5*1.35mm USB to DC 3.5mm Power Cable USB to 3.5 Jack Connector DC Power Supply Charger Adapter for Hub USB Fan Charging Cable

$0.394.8(884)
MOQ: 500 pieces
DC 3.5mm300+ store reviews25% reorder rate≤7h response time
Shenzhen Co-Growing Technology Co., LimitedShenzhen Co-Growing Technology Co., Limited🇨🇳CN10 yrs
Type-C DC5.5*2.5MM Male Cable 3A 5V/9V/12V USB PD Tinned Copper Conductor Braid Shielding Computer & Earphone Charging Cable

Type-C DC5.5*2.5MM Male Cable 3A 5V/9V/12V USB PD Tinned Copper Conductor Braid Shielding Computer & Earphone Charging Cable

$1.595.0(698)
MOQ: 10 pieces
25% reorder rate≤2h response time
Shenzhen Yoosure Technology Co., Ltd.Shenzhen Yoosure Technology Co., Ltd.🇨🇳CN1 yr

Deep Dive · Full Report

Full Market Report

1 document · Live-fetched from source

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Sources & References

25 sources cited · Verified industry data & reports

What charger does this take? : r/cableadvice

Reddit · r/cableadvice

That's the hole. Uses a cord with USB to some sort of skinny headphone type connector. Fits thru the silicone. Hope you get it going.

2PCS USB Charger Cable USB to DC 3.5mm Round Hole ...

Amazon.com

2PCS USB Charger Cable USB to DC 3.5mm Round Hole Charging Cord Compatible with Fairywill Electric Toothbrush Stereo Small Fan Cleanser 5V 1A 1 Meter Black

Ferrite Bead: Tiny Cylinder in Power Cords & Cable. Why?

Electrical Technology

The tiny cylinder in power cords and cables is known as a ferrite choke, ferrite core, EMI filter, ferrite ring, ferrite block, or simply a ferrite bead.

USB to 2.5/4.0/5.5mm/mini/micro Round Hole Connector ...

eBay

The product has a wide range of uses and can power other devices, such as routers, USB lights, USB fans, cartoon watches, heat sinks, 5V mini speakers, USB ...

I've Never Seen A USB-C Charger This Good!

YouTube · Project Farm

The USB-C chargers were tested for standby power, maximum watt-hours (WH) after 30 minutes of charging one device, temperature, charger ...

What is the purpose of small hole next to charging port?

Facebook · Homemaking Tips

Think of it as the “doorway” your charging cable enters. ⚡ CHARGING POINT This is the socket/wall outlet where you plug your charger. It is on ...