97成人在线,在线观看视频99,97超碰人人在线观看,中文字幕在线播放一区二区,22精品一区二区三区,成人av手机在线,欧美图片在线视频

What is the difference between a super five system and a super six system?

release:admin Browse:3845 times

The bandwidth of the super five classes is 100MHz; The bandwidth of six types of lines is 250MHz; Super five class wire gauge is 24AWG; The six types of wire gauge are 23AWG; Super five classes without skeleton; Six types of cables have a cross skeleton;