Lenovo ThinkPad T520 15.6" Genuine LAN Ethernet Port USB Board 04W1563 ER*
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Lenovo ThinkPad T520 Details, Specs and Photos
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USB 3.0 Port Board Cable For Lenovo ThinkPad T520 T520I W520 15.6" I/O SUB CARD RJ-45 SOCKET PCB 04W1563 - AliExpress