Calrad 72-138-2.5 Dc Power Plug to Dual Usb 5V 4 Ft

Product Description

The CALRAD 72-138-2.5 is a DC power adapter cable that converts a 2.5mm coaxial plug to a 4-pin USB Type A connector wired for power delivery only. It carries 5 volts DC to devices that require coaxial barrel-plug power input, allowing a USB port to serve as the power source. At 4 feet in length, the cable provides enough reach for most installation scenarios. Electricians, AV technicians, and security system installers use this cable when a standard power outlet is not within reach of the powered device.

This cable is a practical solution in structured wiring and surveillance installations where video baluns or similar low-voltage devices require 5V DC power and no dedicated outlet is nearby. The USB Type A end connects to any powered USB port, wall charger, or USB hub rated for the device load, while the 2.5mm coaxial plug delivers power to the endpoint device. It is commonly deployed in residential and light commercial AV and security system installations.

Key Features

• Converts USB Type A (power only) to 2.5mm coaxial barrel plug for 5V DC delivery
• 4-foot cable length for flexible routing in wall panels and equipment racks
• Power-only wiring on the USB end — no data lines, no pairing required
• Compatible with baluns and other low-voltage devices requiring 5V DC via 2.5mm coax input

Compatibility

Designed for use with video baluns and 5V DC-powered devices that accept a 2.5mm coaxial power plug, particularly in installations where a USB power source is available but a standard outlet is not accessible.

Installation Notes

Installation is performed by AV technicians, low-voltage installers, or electricians working with structured media or surveillance systems. Verify the target device accepts 5V DC input via a 2.5mm coaxial plug before connecting. Confirm the USB power source can supply sufficient current for the connected device. No special tools are required, but the installation should comply with applicable low-voltage wiring guidelines for the jurisdiction.

Technical Specifications

• Output Voltage: 5V DC
• Connector A: 4-pin USB Type A (power only)
• Connector B: 2.5mm coaxial barrel plug
• Cable Length: 4 feet

Standard Information

• Brand: CALRAD
• Manufacturer Part Number: 72-138-2.5