The various accessories that shipped with the Dell UltraSharp 32 4K USB-C Monitor include a stand riser, stand base, power cable, DisplayPort cable, USB Type-C to Type-C cable, USB Type-A to Type-B cable and documentation.
The Dell UltraSharp 32 4K USB-C Monitor has a single USB 3.1 Gen 1 (5 Gbs/s) Type-C port which supports DisplayPort Alternate Mode for video output and USB Power Delivery for fast output charging.
Besides USB Type-C, the Dell monitor also comes with plenty of connectivity options- one DisplayPort 1.4 connector, one HDMI 2.0 port, one USB 3.0 upstream port, two USB 3.0 downstream ports and two legacy USB ports. You can use the DisplayPort connector to connect to another monitor with DisplayPort or daisy chain multiple monitors. The HDMI port can be plugged in with a digital media player like the Roku 4, Apple TV, Google Chromecast, Xiaomi Mi Box or Amazon Fire TV to transform your Dell display into a Smart TV. Finally the USB 3.0 hubs allow the Dell monitor to act like a dock for attaching various peripherals.
The USB Power Test App first negotiates a power contract for every PDO supported by the Dell monitor, and increases the load gradually to find the threshold where over current protection (OCP) kicks in and voltage and current start to drop for safety reasons.
The USB Power Test App reports out all the PDO's supported by the Dell monitor and their OCP thresholds. The OCP thresholds above the maximum current levels for this monitor (except for the 20V PDO) are very high which should just be around 10-20% for best practices.
PDO#1 Fixed: 5V 3A
PDO#2 Fixed: 9V 3A
PDO#3 Fixed: 15V 3A
PDO#4 Fixed: 20V 4.5A
The USB Power Test App from Granite River Labs then takes this data to produce an I-V curve which graphically shows the relationship between voltage and current for each PDO. We can observe as the current increases beyond the OCP threshold, the voltage immediately shuts off.