Requirements, Console, Computers – ATEN 2-Port USB 3.0 4K DisplayPort Dual-Display KVMP Switch User Manual
Page 12: Cables, Console computers cables

CS1942DP / CS1944DP User Manual
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Requirements
Console
Two DisplayPort monitors capable of the highest possible resolution
A USB mouse
A USB keyboard
Microphone and speakers
Computers
The following equipment must be available on each computer:
Two DisplayPort ports
Four DisplayPort ports for Quad-Display (DCC mode)
A USB Type A port
Audio ports
Cables
To guarantee video quality, we recommend using only ATEN DisplayPort
KVM cables which are certified by the VESA Compliance Program. Four
(CS1942DP) or eight (CS1944DP) cables are provided with this package.
Note:
1. The quality of the display is affected by the quality of the cables.
We recommend the total length from the source to the monitor to
not exceed 3 meters (1.5 meters between the PC and the KVM
switch. 1.5 meters between the KVM switch and the monitor). If
you need additional cables, please contact your dealer to purchase
ATEN approved cables.
2. If you are using DisplayPort cables that are only DP 1.1
compliant, make sure the DisplayPort EQ setting of the monitor
is set to auto or DP 1.1.