This part is a kind of semiconductor called FE1.1S.

Function of this product has USB 2.0 HIGH SPEED 4-PORT HUB CONTROLLER.

Manufacturers : JFD

Image and pinout :

Some of the text within the PDF file :

USB 2.0 4-Port Hub Data Sheet Rev. 1.0 www.jfd-ic.com FE1.1S USB 2.0 HIGH SPEED 4-PORT HUB CONTROLLER _______________________Data Sheet_______________________ INTRODUCTION The FE1.1s is a highly integrated, high quality, high performance, low power consumption, yet low cost solution for USB 2.0 High Speed 4-Port Hub. It adopts Single Transaction Translator (STT) architecture to be more cost effective. Six, instead of two, non-periodic transaction buffers are used to minimize potential traffic jamming. The whole design is based on state-machinecontrol to reduce the response delay time; no micro controller is used in this chip. To guarantee high quality, the whole chip is covered by Test Scan Chain – even on the high speed (480MHz) modules, so that all the logic components could be ful [ ... ]

FE1.1S PDF Datasheet Download