Genuine Dell PR03X E/Port II USB 3.0 Advanced Port Replicator, Compatible Dell Part Numbers: 8W9HM, T0J21, GNPHP, and XX6F0 Compatible Systems: Latitude E4200, E4210, E4300, E4310, E4500, E5400, E5410, E5420, E5430, E5500, E5510, E5520, E5530, E6220, E6230, E6320, E6330, E6400, E6400, ATG, E6400 XFR, E6410, E6410 ATG, E6420, E6420 ATG, E6430, E6500, E6510, E6520, E6530, Precision M2400, M4400, M4500, M4600, M6600 Review