Dell EPort Plus Advanced Replicator USB 3.0 for retail E Series Latitudes.

Product Name: Dell EPort Plus Advanced Replicator USB 3.0 for retail E Series Latitudes.
Description The E-Port Plus Port Replicator with USB 3.0 from Dell offers dual digital monitor capabilities along with legacy ports. This docking station includes USB 3.0 technology enabled by Intel in Ivy Bridge. Compatible Dell Laptops: -Latitude E4310, E5510, E5410, E6520, E6420, E6320, E5520, E5420, E6220, E5530, E6330, E6230, E5430, E6530, E6430, E6430s, E5520M, E7240, E7440, E6540, E6440, E5440, E5540, E5250, E7250, E7450, E5450, E5550, E5570, E5270, E5470, E7270, E7470, E6510, E6500, E6410, E6400, ATG E6410, ATG E6400, E5500, E5400, E4300, E4200 -Precision 17 (7710), M2400, M4400 Note: The USB 3.0 Speed only works for the later systems with native USB 3.0 support. Optimized for dual monitors with support retail for VGA 2 x DVI / 2 x Display Ports 1 x VGA port 1 x Serial 1x  Parallel 2 x PS/2 2 x USB 3.0 (located on the back side) 3 x USB (2.0) 1 x eSATA/USB port Supports up to two 30" LCD monitors with native resolution of 2560x1600 via display ports  *Does NOT include power adapter.