Unique-Bargains 5.5x2.1mm Barrel to USB Female Power Extension Cord 12cm

Adaptor cable for barrel-to-USB power

This 12 cm cable converts a 5.5×2.1 mm barrel jack into a USB-A female port so a standard barrel power supply can run or charge USB devices. The wire has a 4 mm outer diameter and female-to-female connectors for simple camera or accessory installations. It is a passive adaptor with no voltage regulation built in. Polarity and voltage must match the connected equipment.

Suits installers needing USB power from a barrel

Technicians fitting IP cameras, LED strips or similar gear that draw 5 V from a USB plug can use this cord with an existing barrel-output supply. It is not for devices that require Quick Charge, Power Delivery or any negotiated voltage above 5 V. Users needing longer reach, higher current or regulated output should choose a different solution.

Handles low-power 5 V USB loads within 12 cm

The short length keeps voltage drop minimal for typical 5 V peripherals such as small cameras or sensors. The 4 mm cable diameter limits current capacity so high-draw devices like tablets or power-hungry hubs may exceed its safe rating. The barrel jack accepts only 5.5 mm outer and 2.1 mm inner dimensions; other sizes will not connect.