Networking & Telecommunication Power Supplies

Certified AC-DC power adapters for Wi-Fi routers, set-top boxes, and network switch devices

Quankang designs and manufactures networking and telecommunication power supplies for OEMs and device brands worldwide. For 36 years, we have built stable, low-noise AC-DC power adapters for equipment that must stay connected around the clock, from residential Wi-Fi routers and IPTV set-top boxes to commercial and enterprise network switches.

Our power solutions are engineered for the demands of always-on communication devices, with stable voltage output, low ripple, strong EMC performance, and global safety certifications. With in-house design, testing, and production under one roof, plus an EMC laboratory that helps identify interference risks early, we help customers move from development to market with fewer delays and more confidence.

*Share your specifications. Our engineering team typically responds within one business day.

Why Networking & Telecommunication Devices Demand Reliable Power

Networking and telecommunication devices are expected to run continuously, often in electrically noisy and thermally constrained environments. Unlike general-purpose consumer electronics, routers, set-top boxes, and network switches depend on stable power to maintain signal integrity, data transmission, and uninterrupted uptime. Even minor power irregularities can lead to dropped connections, system reboots, packet loss, or shortened hardware life.

For OEMs and device makers, power supply selection affects far more than basic operation. It influences product reliability, EMC performance, thermal stability, certification readiness, and long-term field performance.

Six Engineering Requirements Define The Difference:

Stable Voltage Output

Stable voltage is essential for reliable data routing, signal transmission, and video decoding. It helps prevent resets, connection drops, and unstable device performance.

Low Ripple and Noise

Clean DC output reduces electrical disturbance in sensitive communication circuits. Low ripple and noise help protect signal integrity and support stable long-term operation.

Strong EMC Performance

Networking devices often operate in electrically dense environments. Strong EMC performance helps reduce interference and improves compatibility with nearby electronics and wireless systems.

Continuous-Duty Reliability

Routers, set-top boxes, and switches are often expected to run 24/7. Their power supplies must maintain stable output over long operating periods without premature degradation.

Thermal and Circuit Protection

Long operating hours can place ongoing stress on both the adapter and the device. Built-in protection against over-voltage, over-current, short circuit, and overheating helps improve operational safety.

Global Certification and Integration Flexibility

Networking products are often built for multiple markets and device formats. Certified power supplies with flexible plug, cable, and enclosure options help simplify global deployment and OEM integration.

Applications

Key factors for selecting a power supply for networking and telecommunication devices
Device Type	Typical Voltage	Key Power Requirement	Recommended Protection
Wi-Fi Routers	5V / 9V / 12V	Low ripple, stable output	Thermal, short-circuit
Set-Top Boxes	5V / 9V / 12V	Clean power, stable operation	Thermal, over-voltage
Network Switches	12V / 24V / 48V	EMC performance, continuous uptime	Over-voltage, short-circuit, thermal

Certified Safety and EMC Compliance
Designed to meet IEC/EN 62368-1 safety requirements and EN55032 Class B EMC standards.
Stable Voltage Output
Well-regulated DC output supports reliable signal transmission, routing, and video decoding.
Low Ripple and Noise
Clean power helps reduce interference and protects signal integrity in sensitive networking devices.
24/7 Continuous Operation
Engineered for always-on applications such as routers, set-top boxes, and network switches.
Built-In Protection
Includes over-voltage, short-circuit, and thermal protection for safe long-term operation.
Flexible Output Options
Available in common output voltages such as 5V, 9V, 12V, 24V, and 48V.
Global Safety Approvals
Supports international market access with certifications including CE, UL, FCC, CB, PSE, and UKCA.
OEM/ODM Customization
Custom output, plug type, cable length, enclosure, labeling, and branding are available.
Environmental Compliance
RoHS and REACH compliant materials support global environmental requirements.
Proven Engineering Experience
Backed by 36 years of manufacturing expertise, 212 active patents, and customers in more than 50 countries.

Frequently Asked Questions

What standards are most important for networking and telecommunication power supplies?

The most important starting points are IEC/EN 62368-1 for electrical safety and EN55032 Class B for EMC performance. Depending on the target market, manufacturers may also require certifications such as CE, UL, FCC, CB, PSE, and UKCA to support product compliance and global market access.

Why can’t a standard consumer adapter be used for networking devices?

Standard consumer adapters may not deliver the voltage stability, low ripple, EMC performance, or continuous-duty reliability required for networking and telecommunication equipment. In always-on systems such as routers, set-top boxes, and switches, unstable or poorly matched power can lead to connection drops, signal interference, overheating, or reduced product life.

Which networking devices commonly use external AC-DC power adapters?

External AC-DC power adapters are widely used in Wi-Fi routers, mesh systems, set-top boxes, network switches, wireless bridges, access points, and other communication devices. An external design helps simplify integration, supports easier global deployment, and allows flexible power matching across product lines.

Can Quankang customize a power supply for my device?

Yes. Quankang provides OEM/ODM customization for output voltage and current, DC connectors, cable length, plug type, enclosure design, labeling, and branding. Our engineering team can also help match the right power solution to your device’s electrical, mechanical, and market requirements.

Are your power adapters suitable for continuous 24/7 operation?

Yes. Our networking and telecommunication power adapters are designed for stable output and long-term reliability under continuous use. Built-in protection features such as over-voltage, short-circuit, and thermal protection help support safe operation in always-on environments.

Do your power supplies support global market requirements?

Yes. Our power supplies are designed for international deployment, with global safety certifications, wide input compatibility, and flexible plug options for different regions. This helps OEMs simplify compliance and use a consistent power platform across multiple markets.

Power Your Next Networking Product with Confidence

Whether you are developing a new router platform, launching a set-top box, or refining a network switch design, the right power supply improves reliability, simplifies compliance, and supports long-term field performance. Share your voltage, output, certification, and form factor requirements, and our engineers will recommend a qualified model or develop a tailored solution for your application.

Start Your Networking & Telecommunications Power Project

Send us your voltage, output, certification, and form factor requirements today. An engineer will follow up with recommended models or customization options, typically within one business day.

Networking & Telecommunication Power Supplies

Why Networking & Telecommunication Devices Demand Reliable Power