Product description
MUST READ: Only works on dell computers. HP power supply to HP computer, Dell power supply to Dell computer. The two cannot be cross-transferred. There is no commonality between the two power sources.
Name: 7.4*5.0 female to 4.5*3.0 male round mouth with needle
Length: about 30cm/11.8 inches
Specifications: pure copper wire core
Applicable: The new DELL Dell notebook power adapter is converted into an ultrabook power interface
Input (female): outer diameter 7.4mm inner diameter 5.0mm with pin
Output (male): outer diameter 4.5mm inner diameter 3.0mm with needle