Compatibility: This docking station is compatible with the following systems:
Latitude E5510, E5520, E6220, E6320
Precision M4400, M4500, M4700, M6400, M6500, M6600, M6700
Ports Spec: 1 x serial - RS-232 - 9 pin D-Sub (DB-9)
1 x parallel - 25 pin D-Sub (DB-25)
1 x keyboard - generic - 6 pin mini-DIN (PS/2 style)
2 x USB - 4 pin USB Type A
1 x network - RJ-45
1 x display / video - VGA - 15 pin HD D-Sub (HD-15)
2 x display / video - DVI-Digital - 24 pin digital DVI
2 x display / video - 20 pin DisplayPort
1 x mouse - generic - 6 pin mini-DIN (PS/2 style)
Audio
Compatibility: Plug and Play installation on any Chromebook/Windows/Mac/Linux hosts which support DisplayPort Alternate Mode (Alt Mode) video output functionality. USB C Dock has been fully tested for functionality on the 2018+ iPad Pro (mirroring only)/MacBook Air/iMac and iMac Pro/MacBook and MacBook Pro/Google Pixelbook/Dell XPS 13 & XPS 15/Lenovo Thinkpad/HP Spectre x360/Samsung DeX capable devices/Surface Laptop 3 and Surface Go/and many other systems which support USB-C DP Alt Mode.
Ports Spec: USB-C: PD Power Adapter I/P
Single DisplayPort: 4K/30Hz max.
Single HDMI: 4K/30Hz max.
Single VGA: 2K/60Hz max.
2 x USB-A Port: 5Gbps
2 x USB-A Port: 480Mbps
RJ45: Gigabit Ethernet
Card Reader: SD / TF
Phone Jack: Stereo 4pole TRRS Stereo
Compatibility: Laptops (USB type C interface of the laptops supports Data Transfer and USB-C Power Delivery and Video Alternate (Alt) Mode. Laptop has thunderbolt 3 / USB-C 3.1 Gen 2 /USB-C 3.1 Gen 1 (Support Power Delivery) to support multiple-display.) USB-C Device, Smartphones, Tablets, Keyboards, Monitors, Card Readers