This part is a kind of semiconductor called RTL8211FI-CG.
Function of this product has INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER.
Manufacturers : Realtek Microelectronics
Image and pinout :
Some of the text within the PDF file :
RTL8211F-CG RTL8211FD-CG RTL8211FI-CG RTL8211FDI-CG INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER DATASHEET (CONFIDENTIAL: Development Partners Only) Rev. 1.1 21 February 2014 Track ID: JATR-8275-15 Realtek Semiconductor Corp. No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan Tel.: +886-3-578-0211 Fax: +886-3-577-6047 www.realtek.com RTL8211F(I)/RTL8211FD(I) Datasheet COPYRIGHT ©2014 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of Realtek Semiconductor Corp. DISCLAIMER Realtek provides this document ‘as is’, without warranty of any kind. Realtek may make improvements and/o [ ... ]