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Main -> USB Devices -> Device UD:04b3 -> Subsystem UD:04b3:4484

Name: SMSC USB20H04 3-Port Hub [ThinkPad X4 UltraBase, Wistron S Note-3 Media Slice]

Discussion

Name: SMSC USB20H04 3-Port USB 2.0 Hub [ThinkPad X4 UltraBase, Wistron S Note-3 Media Slice]

The chip has 4 ports, but only 3 are exposed. It has been reprogrammed by IBM to be shown as a 3 port hub to the OS.
Sometimes this shows up in lsusb as 00b3:4484 instead of 04b3:4484.

VittGam

2014-07-30 00:53:39

Name: SMSC USB20H04 3-Port Hub [ThinkPad X4 UltraBase, Wistron S Note-3 Media Slice]

gowdy

2014-12-05 18:24:15

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