Dell Precision 7770 Connection Manual page 8

*When connecting via docking station, additional external displays can be connected under Hybrid mode (with Internal Display
Off).
NOTE: Discrete mode and UMA modes are disabled when additional external displays are connected via docking station.
Table 6. Supported display via docking station under Hybrid mode
Hybrid mode
TBT Dock
Single Cable Dock
Dual Cable Dock
Table 7. Supported display via docking station under Discrete mode
Discrete mode
TBT Dock
Single Cable Dock
Dual Cable Dock
8 Connect displays
Type-C TBT + DP + DP + HDMI/MFDP: *4k@60 Hz +
2k@60 Hz*3
● DP + DP + HDMI : FHD@60 Hz*3
● DP + DP + MFDP : FHD@60 Hz*3
● DP + DP + HDMI: 2k@60 Hz*3
● DP + DP + MFDP: 2k@60 Hz*3
● DP + DP: 8K@60 Hz*1
● DP + HDMI: 4K@60 Hz*2
● MFDP/HDMI+DP1+DP2: 4K@60 Hz*3
● TBT + DP1+DP2+HDMI: 4K@60 Hz*4
● DP + DP: 4K@60 Hz *2
● DP + HDMI: 4K@60 Hz*2
● DP + MFDP: 4K@60 Hz*2
● DP + DP: 8K@60 Hz*1
● DP+DP+HDMI/MFDP: 4K@60 Hz*3
● Up to 3 if internal display
on
● Up to 4 if internal display
off
● Connect either HDMI
or MFDP only, do not
connect both of them
● Up to 3 if internal display
on
● Up to 4 if internal display
off
● Connect either HDMI
or MFDP only, do not
connect both of them