Johnson's Techworld

Dual Port USB Charger This is a dual port USB charger. Input to be given is standard mains voltage. Output is standard 5 volts for any USB charger.

LED – Light Emitting Diode (LED – ലൈറ്റ് എമിറ്റിംഗ് ഡയോഡ്)

USB Hub (USB ഹബ്) Description about the uses of USB Hub in Malayalam.