The UltraSharp 32 4K USB-C Monitor is one of Dell's newer display monitors that can be used to connect to your USB Type-C device through the USB Type-C interface. You can link up the Dell monitor with a Thunderbolt 3 or USB Type-C enabled PC with DisplayPort Alternate Mode enabled, such as the Apple 15" MacBook Pro (2018), the Dell Precision 7530, or the HP Envy X360 15z. If your phone supports DisplayPort like the Samsung Galaxy S10+ or the Huawei Mate20 Pro, you can also plug it in to display your phone's screen on the monitor. The Dell UltraSharp 32 4K USB-C Monitor can take advantage of DisplayPort 1.4 similar to the Dell UltraSharp UP2718Q which uses HBR3 data signaling rates to achieve 8K@60Hz or 4K@120Hz video resolutions which also lets you connect a daisy-chain of up to six Thunderbolt 3 based devices. The Dell UltraSharp 32 4K USB-C Monitor not only displays the screen but can also supply up to 90W rapid charging to your connected device at the same time using USB Power Delivery 2.0 technology.
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 Dell UltraSharp 32 4K USB-C Monitor has a 31.5 inch IPS LCD display that supports 4K@60Hz and comes with adjustable viewing height and swivel position.
Let's see how the Dell UltraSharp 32 4K USB-C Monitor supports power using the USB Power Test App from Granite River Labs with the Granite River Labs USB Power Delivery Compliance C2 Tester to perform the following tests.
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||5.08||169.2%|
|PDO#2 Fixed: 9V 3A||5.11||170.3%|
|PDO#3 Fixed: 15V 3A||4.99||166.5%|
|PDO#4 Fixed: 20V 4.5A||5.11||113.5%|
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.
Using the USB Power Delivery Compliance C2 Tester from Granite River Labs to run just a subset of the full USB Power Delivery compliance test suite, quite a few compliance failures were detected for the Dell UltraSharp 32 4K USB-C Monitor, so just be more careful using this monitor.
USB-IF High Level Mapping Summary
Test Group Description
BMC Physical Layer Transmitter
BMC Physical Layer Receiver
BMC Physical Layer Miscellaneous
Protocol Specific Primary
Power Source/Sink Primary
TDA.18.104.22.168 BMC PHY TX EYE
TDA.22.214.171.124 BMC PHY TX BIT
TDA.126.96.36.199 BMC PHY RX INT REJ
TDA.188.8.131.52 BMC PHY RX BUSIDL
TDA.184.108.40.206 BMC PHY TERM
TDA.2.2.1 BMC PROT SEQ GETCAPS
TDA.220.127.116.11 BMC PROT SEQ CHKCAP P PC
TDA.18.104.22.168 BMC PROT SEQ CHKCAP NOMARK P PC
TDA.2.2.7 BMC PROT BIST NOT 5V SRC
TDA.2.2.9 BMC PROT GSC REC
TDA.22.214.171.124 POW SRC LOAD P PC
TDA.126.96.36.199 POW SRC TRANS P PC
BMC Eye Diagram