สาย USB to DC 5.5*2.1mm ยาว 100 cm.

สาย USB to DC5.5*2.1mm DC5.5 ยาว 100 cm. [Specifications]: about 70 Cm. long. The outer diameter is about 3.0MM full copper core (positive inside and negative outside) [Interface]: USB to DC5.5*2.1MM. Positive and negative [Introduction]: Supply power to other devices through the computer USB jack.Such as: USB lights, USB fans, cartoon clocks,Radiator, 5V mini speaker, USB HUB, etc.