Dell laptop plug in the power supply usb can not be used, how is it?
Answer replies: look like goods, or black and red 4 wire outside the set of a nylon rope! Is to isolate the meaning of electromagnetic is not, the power out of the DC, switch machine will have little effect on the electromagnetic interference! This is the ordinary connection, run the computer city will be able to get
Digital cable set-top boxes generally have two different sets of cable is a three-color line connection, a group of HDMI high-definition line connection, how can a group can use, and now the TV should have two interfaces, the old TV Machine should also have a three-color line interface,
Is the serial port then 4-pin on the line. Power line, there is no quality problems on the line. A few dollars only.
