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Black rectangular AC adapter with 5.5x2.5mm DC plug and IEC power cord

Alphacool

Alphacool 48V 3A 144W Power Adapter 5.5x2.5mm 2 in 1 accessory

SKU CH-QPZC-65PR7

Delivers 48 V at 3 A through 5.5 × 2.5 mm and 5.5 × 2.1 mm plugs for PoE switches and injectors

  • Delivers 144 W to power 48 V PoE equipment
  • Wide 110–240 V input suits global mains voltages
  • Dual 5.5 × 2.5 mm and 5.5 × 2.1 mm tips fit more devices
  • Multiple protections guard against over-voltage, overload and short circuits
  • Not for e-bikes or any lithium-battery applications

48V 3A Power Adapter for PoE Devices

This 144W AC/DC adapter supplies 48V DC at 3A to compatible PoE switches and injectors. It accepts a universal 110V-240V input at 50 or 60Hz. The unit is designed specifically for networking equipment and is not suitable for e-bikes or any lithium battery applications.

Capacity and Connector Fit

The 144W output handles typical PoE switch and injector loads within its 48V 3A rating. It ships with a dual-size DC plug offering both 5.5mm x 2.5mm and 5.5mm x 2.1mm interfaces to match common device jacks. Verify the required plug size before connecting to ensure proper fit.

Protection Features and Daily Use

Built-in safeguards include overvoltage, overload, and short circuit protection with stop and lock function, plus overcurrent protection with automatic reset. The switching design runs from standard mains voltages worldwide. A power cord is included for immediate deployment in network cabinets or desktop setups.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 82% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will this 48 V 3 A adapter power my existing PoE switch that uses a 5.5 × 2.5 mm jack?

Yes, it supplies 48 V at 3 A through a 5.5 × 2.5 mm barrel connector, matching most 48 V PoE switches and injectors.

How can I confirm the unit is operating correctly once connected?

The adapter includes overvoltage, overload and short-circuit protection with automatic reset; stable 48 V output and no protection triggers indicate normal operation.

What comes in the box and what must I source separately?

The package provides the 144 W power supply and a mains cord for 110–240 V 50/60 Hz input; any additional DC cables or PoE devices are sold separately.

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