Are the USB Type-A ports USB 2.0 or USB 3.0?

These are standard USB 2.0 ports, which feature 4 internal pins (VBUS, D-, D+, GND) and are ideal for standard 5V power delivery and basic data transfer.

How do I mount the 5.5x2.1mm DC jack to my project box?

You simply drill a hole in your project box, insert the threaded barrel of the DC jack from the outside, and tighten the included hex nut from the inside to secure it.

What are the three solder lugs on the back of the DC jack for?

The center pin is usually Positive (+), the outer sleeve is Negative (-), and the third lug is a switched ground that disconnects an internal battery when a wall plug is inserted.

Can I buy just one specific type of connector at your Hong Kong store?

Yes, you can mix and match or purchase exactly the specific connector you need at our Sun Cheong Computer Co. Ltd. physical store in Sham Shui Po.

Will the heat from my soldering iron damage these connectors?

They are designed to withstand standard soldering temperatures, but you should avoid holding the iron on the pins for more than a few seconds to prevent the internal plastic from melting.

DIY Soldering Connectors | 5.5x2.1mm DC Jack & USB Ports

Name: DIY Soldering Connectors | 5.5x2.1mm DC Jack & USB Ports
Brand: Sun Cheong Computer Company Limited
SKU: 21PS000936
Price: 21.0 TWD
Availability: InStock

Short Product Description

Upgrade or repair your custom electronics with our premium selection of DIY Soldering Connectors. Choose from panel-mount 5.5x2.1mm DC power jacks (Silver/Black) or PCB-mount USB 2.0 female receptacles (Single USB-A, Dual USB-A, and USB-B). Whether you are fixing a broken Bluetooth speaker port or building a custom Arduino power hub, these high-quality replacement parts ensure a secure and stable connection. Available in-stock at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po, making it the perfect instant-pickup solution for local makers, STEM students, and repair technicians.

Key Features

Multiple Configurations: Select exactly what your project needs: Silver DC Jack, Black DC Jack, Single USB-A, Dual USB-A, or USB-B.
Secure Panel Mounting: The DC jacks include a metal hex nut and washer for tight, twist-free installation on custom project boxes.
Standard USB 2.0 Compatibility: All USB receptacles feature the standard 4-pin layout, perfect for 5V power delivery and up to 480Mbps data transfer.
Durable Metal Housings: Built with robust metal shielding to protect against physical wear and tear from repeated cable insertions.
Easy Through-Hole Soldering: The USB ports feature standard spaced through-hole pins that fit perfectly into standard 2.54mm pitch perfboards and custom PCBs.

Full Product Description

Versatile Components for DIY Prototyping & Repair

These individual soldering connectors are essential building blocks for any electronics workbench. Instead of discarding expensive devices due to a snapped charging port, you can easily desolder the broken component and replace it with these factory-standard receptacles. For makers building custom projects from scratch, these connectors provide a professional, reliable way to interface your internal circuitry with external power supplies and data cables.

Panel-Mount DC Jacks vs. PCB-Mount USB Ports

Our selection caters to different mounting requirements based on your project's enclosure. The 5.5x2.1mm DC Female Jacks feature a threaded metal barrel and an included hex nut, allowing you to securely mount them directly onto the chassis or plastic casing of your project. Conversely, the USB Type-A and Type-B Receptacles are designed with standard through-hole pins, making them perfect for direct soldering onto custom Printed Circuit Boards (PCBs) or perfboards for rigid data and power connections.

Pro Tip from Our Technicians

When soldering these connectors, temperature control is critical. Our Sham Shui Po DIY repair specialists recommend using a soldering iron set between 320°C and 350°C with a good quality flux. Do not hold the iron on the metal pins for more than 3 seconds, as excessive heat will travel down the pin and melt the internal plastic tongue of the USB port or DC jack, ruining the component.

Technical Specifications

Product Category: DIY Soldering Connectors / Receptacles
Available Options:
- Metal DC Female Jack (5.5x2.1mm) - Silver
- Metal DC Female Jack (5.5x2.1mm) - Black
- USB Type-A Female (Single Port)
- USB Type-A Female (Dual Port)
- USB Type-B Female
DC Jack Mounting Style: Panel Mount (Threaded with Hex Nut)
DC Jack Pinout: 3 Solder Lugs (Positive, Negative, Switched Ground)
USB Mounting Style: PCB Through-Hole (DIP)
USB Standard: USB 2.0 (4-Pin Data/Power)
Material: Metal Alloy Shielding with High-Temperature Plastic Cores

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Are the USB Type-A ports USB 2.0 or USB 3.0?These are standard USB 2.0 ports, which feature 4 internal pins (VBUS, D-, D+, GND) and are ideal for standard 5V power delivery and basic data transfer.
How do I mount the 5.5x2.1mm DC jack to my project box?You simply drill a hole in your project box, insert the threaded barrel of the DC jack from the outside, and tighten the included hex nut from the inside to secure it.
What are the three solder lugs on the back of the DC jack for?The center pin is usually Positive (+), the outer sleeve is Negative (-), and the third lug is a switched ground that disconnects an internal battery when a wall plug is inserted.
Can I buy just one specific type of connector at your Hong Kong store?Yes, you can mix and match or purchase exactly the specific connector you need at our Sun Cheong Computer Co. Ltd. physical store in Sham Shui Po.
Will the heat from my soldering iron damage these connectors?They are designed to withstand standard soldering temperatures, but you should avoid holding the iron on the pins for more than a few seconds to prevent the internal plastic from melting.

Target Users / Applications

Audio enthusiasts repairing broken 5.5x2.1mm charging ports on portable Bluetooth speakers.
Custom mechanical keyboard builders soldering USB Type-B or Type-A receptacles onto custom PCBs.
STEM students building Arduino-powered robotics that require robust panel-mounted power inputs.