48V 2.5A 120W Power Adapter for PoE Switch | Industrial AC-DC Power Supply

Our 48V 120W power adapter is designed for PoE switches and networking devices requiring stable and efficient power delivery. With a regulated 48V 2.5A output, this AC-DC power supply ensures reliable performance in continuous operation environments such as surveillance systems, communication networks, and industrial control setups.

Built with high-quality components and advanced protection features, it provides excellent efficiency, low ripple, and long-term durability. OEM and customization options are available to meet different project requirements.

Compact 48V 120W (2.5A) power adapter for PoE switches, offering stable output, high efficiency, and full protections for networking applications.

  • Precise Voltage Regulation – ±1% output accuracy ensures sensitive PoE devices operate safely.
  • Industrial-Grade Reliability – Designed to operate continuously at -20°C to +60°C with robust protection against electrical faults.
  • High Power Density – 120W output in a compact form factor, saving space in network cabinets.
  • Enhanced Safety Compliance – CE, FCC, UL/cUL certified, RoHS compliant for international deployment.
  • Long Lifespan & Low Maintenance – High-quality components reduce wear, ensuring stable operation over thousands of hours.

XJK Power provides AC-DC power adapters for networking and industrial communication equipment requiring regulated DC power. Our 48V 2.5A 120W power adapter is designed for compatible PoE switches and other 48V networking devices.

For equipment manufacturers with specific connector, cable, or electrical requirements, learn more about our OEM/ODM power adapter services.

120w power adapter
The 120W 48V 2.5A AC-DC power adapter is designed for PoE switches, networking equipment, and industrial communication devices requiring a regulated 48V DC power source. With a rated output of 120W, it provides a suitable external power solution for compatible network infrastructure equipment. OEM/ODM options are available for connector, cable, and project-specific configuration requirements.

Technical Specifications

Parameter Specification
Product Type AC-DC Power Adapter
Model 48V 2.5A 120W Power Adapter
Rated Output Power 120W
Output Voltage 48V DC
Output Current 2.5A
Output Voltage Regulation ±1%
Input Voltage Universal AC Input — Confirm Exact Range
Input Frequency 50/60Hz — Confirm Exact Range
Operating Temperature -20°C to +60°C
Protection Functions Over-Voltage, Over-Current, Short-Circuit and Over-Temperature Protection
Energy Efficiency DOE Level VI — Confirm Model-Specific Compliance
Safety & EMC Compliance Available According to Project Requirements
DC Output Connector Customizable
DC Cable Length Customizable
AC Input Plug Customizable
OEM/ODM Customization Available
Typical Applications PoE Switches, Networking Equipment, Communication Devices and Industrial Electronics

Product Features & Benefits

Protection Functions

Available protection features help safeguard connected equipment against electrical faults.

Stable Power Output

Consistent power delivery designed to meet your equipment’s voltage and current requirements.

Flexible Connections

Input plugs, output connectors and cable configurations can be tailored to project requirements.

EM/ODM Support

Customization support for electrical specifications, connectors, cables, labeling and packaging.

Typical Applications

Fanless rugged computer used in outdoor industrial inspection system

Fanless Rugged Computer

A rugged computer manufacturer required a reliable external power solution for their fanless industrial computer system (MPC-3800 series) used in harsh environments.

PoE Switch + IP Camera + AP

Networking & Communication Devices

This technology simplifies installation by delivering both data and power through a single Ethernet cable, reducing infrastructure complexity and installation costs.

Safety & Compliance

Safety and regulatory compliance are essential for industrial and medical equipment. Our 120W power adapter platform is designed to support major international standards.

Key compliance features include:

• DOE Level VI energy efficiency
• Low standby power consumption
• EMC and electrical safety compliance
• Support for ETL, CE and FCC certifications
• Medical-grade design options available upon request

Certification documents and test reports can be provided according to specific project requirements.

Need a certified power adapter for your project?

Our team can provide ETL or medical-grade compliant solutions.

OEM / ODM SERVICES

OEM/ODM Customization for Your Power Supply Projects

XJK Power supports OEM and ODM customization for equipment manufacturers, helping adapt electrical specifications, connections and product configurations to project requirements.

Electrical Configuration

Output voltage, current and power specifications.

Connectors & Cables

DC connectors, cable lengths and AC plug options.

Branding & Packaging

Product labels, logos and packaging options.

Customization options are subject to engineering evaluation and project requirements.

Need a Customized Power Adapter?

product line
Engineer testing power adapter efficiency at XJK Power laboratory for DOE Level VI and EU CoC Tier 2 compliance
Strict Quality Control System

Related Solutions & Case Studies

Industrial Power Supply Solutions

At XJK Power, we provide high-performance AC-DC power adapters designed for automation systems, control equipment, POS terminals, kiosks, and networking devices.

120W Power Adapter for Networking & Communication Devices

Small to mid-sized PoE switches typically operate within a 100W–120W power range, making the 120W power adapter one of the most commonly used configurations in networking applications.

Frequently Asked Questions

Q1: Can this adapter be used with all PoE switches?
A: This 48V 120W adapter is suitable for PoE switches and devices requiring a 48V DC input up to 2.5A. Always verify your device’s voltage and current requirements before use.

Q2: Is the output voltage regulated?
A: Yes, the output is tightly regulated at 48V DC ±1% to ensure safe and reliable operation of sensitive networking equipment.

Q3: Does it support OEM/custom branding?
A: Yes, we offer OEM/ODM services, including customized labeling, connector types, and cable lengths.

Q4: What protections are included?
A: Over-voltage, over-current, short-circuit, and over-temperature protections are all included to prevent damage to both the adapter and connected devices.

Q5: Can it operate in industrial environments?
A: Absolutely. Designed for -20°C to +60°C operation, it’s ideal for network cabinets, surveillance systems, and industrial automation setups.

Need Help Selecting the Right Power Adapter?

Our engineering team can help you choose the correct voltage, connector, and certification for your projects.

MANUFACTURING & QUALITY

Reliable Manufacturing. Consistent Quality.

XJK Power combines established manufacturing processes with electrical testing and quality inspections to support consistent production for OEM and ODM power supply projects.

Controlled Manufacturing

Dedicated production lines and defined manufacturing processes support consistent assembly and repeat production.

Electrical Testing

Electrical performance checks help verify output parameters against applicable product specifications.

Aging & Reliability Checks

Applicable aging and burn-in tests help evaluate product operation and stability.

Safety & Compliance

Product-specific testing and documentation support applicable safety and regulatory requirements.

Customization options are subject to engineering evaluation and project requirements.

Learn About Our Quality System

120w power adapter
Related Power Adapter Models

Explore our range of reliable power adapters designed for industrial, commercial, and networking applications. Multiple output voltages and connector options are available to meet different device requirements.

MODEL

POWER

VOLTAGE

XJK72W-2403000
72W
24V
XJK72W-2403000
72W
24V
DOE Level VI and EU CoC Tier 2 compliant high-wattage and medical power adapters by XJK Power
XJKAD90W120C16-Wire
90W
12V
DOE Level VI and EU CoC Tier 2 compliant high-wattage and medical power adapters by XJK Power
XJKAD90W120C16-Wire
90W
12V
DOE Level VI and EU CoC Tier 2 compliant high-wattage and medical power adapters by XJK Power
XJKAD90W190C14-Wire
90W
19V
DOE Level VI and EU CoC Tier 2 compliant high-wattage and medical power adapters by XJK Power
XJKAD90W190C14-Wire
90W
19V
XJKAD60W120-5525
60W
24V
XJKAD60W120-5525
60W
24V

Request a Quote

Leave your requirements and we’ll get back to you within 24 hours.