Get the Benefits of 4k@60hz and 50 watts of USB Power Delivery Charging with the ASUS Designo MX27UC Type-C Display

The Designo MX27UC Eye Care Monitor is a 27-inch 4K LCD display by ASUS that supports all the popular interfaces for 4k@60hz video such as HDMI 2.0 and DisplayPort 1.2 over both the standard DisplayPort connector and USB Type-C connector. Using the USB Type-C connector, the Designo MX27UC Eye Care Monitor has a further advantage of being able to charge your laptop, tablet, or phone through the USB Type-C connector using USB Power Delivery 2.0 technology.

We purchased the Designo MX27UC Eye Care Monitor through Amazon Prime which came in a typical monitor box that listed its support of 4k@60hz  over DisplayPort and HDMI.

The Designo MX27UC Eye Care Monitor comes with a monitor base, AC power adapter, USB 3.1 Type-C to Type-C cable, USB 3.1 Type-C to Type-A cable, HDMI cable, standard DisplayPort cable, and 3.5mm audio cable.

The 120W power supply is needed to not only support the monitor's functions but also deliver up to 50 watts of charging to your computer over USB Type-C.  

The Designo MX27UC Eye Care Monitor supports different charging levels through USB Power Delivery technology including 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 36 watts (12 volts @ 3 amps), 45 watts (15 volts @ 3 amps), and 50 watts (20 volts @ 2.5 amps).

The Designo MX27UC Eye Care Monitor also allows you to add USB devices through two USB 3.1 Gen 1 Type-A connectors.

Interestingly unlike charger accessories, the Designo MX27UC Eye Care Monitor does not display how much power it can provide over its USB Type-C connector.

There are a lot of buttons at the bottom of the Designo MX27UC Eye Care Monitor, which can make it quite difficult to figure out which ones to press.

To set up the Designo MX27UC Eye Care Monitor, you will need to first install the base (no screwdriver needed).

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, we can confirm that the Designo MX27UC Eye Care Monitor supports these PDO's for charging: 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 36 watts (12 volts @ 3 amps), 45 watts (15 volts @ 3 amps), and 50 watts (20 volts @ 2.5 amps). Note some compliance failures were observed.

DUT Information

Manufacturer	Asus
Model Number	MX27UC
Serial Number	Comm

Test Information

Date and Time:

20180222_200557

Controller and Instrument Information

Parameter	Value
GRL USB-PD_C2 Serial No.	035.013.035.032.064.
GRL USB-PD Software Version	1.3.3.8
GRL USB-PD Firmware Version	1.3.3.0.7
Board Calibration	Calibration Success.
App Mode	COMMUNICATION_ENGINE_TESTS
Tx Mask	true
Rx Mask	false
RX mask Power selection	Neutral Power
Device Type	DRP
Cable IR drop Imp(R)	0

Product Capabilities

Parameter	GetCapabilities
UUT_Device_Type
Vendor_Name	Realtek Semiconductor Corp.
Product_Name
Version_Info
TID	0x0
Type_C	NONE
SOP_Capable	NONE
SOP_P_Capable	NONE
SOP_PP_Capable	NONE
SOP_P_Debug_Capable	NONE
SOP_PP_Debug_Capable	NONE
Manufacturer_Info_Supported_Port
Manufacturer_Info_VID_Port
Manufacturer_Info_PID_Port
USB_Comms_Capable	YES
DR_Swap_To_DFP_Supported	YES
DR_Swap_To_UFP_Supported	YES
Externally_Powered	YES
VCONN_Swap_To_On_Supported	NONE
VCONN_Swap_To_Off_Supported	NONE
Responds_To_Discov	NONE
Attempts_Discov	NONE
Chunking_Implemented_SOP	NO
Unchunked_Extended_Messages_Supported	NO
Accepts_PR_Swap_As_Src	YES
Accepts_PR_Swap_As_Snk	YES
Requests_PR_Swap_As_Src	NONE
Requests_PR_Swap_As_Snk	NONE
XID
Structured_VDM_Version	V1.0
Data_Capable_as_USB_Host	NO
Data_Capable_as_USB_Device	NO
Product_Type_UFP_SOP
Product_Type_DFP_SOP	Alt Mode Adaptor
Modal_Operation_Supported	YES
Security_Msgs_Supported_SOP	NO
USB_VID	0xBDA
PID	0x0
bcdDevice	0x9
SVIDs Min	1
SVIDs Max	1
SVID Fixed	-
SVID1SOP	FF01
SVID1Modes Min	1
SVID1Modes Max	1
SVID1Modes Fixed	-
SVID1Mode1 Enter Mode	NO
SVID2SOP	FF01
SVID2Modes Min	1
SVID2Modes Max	1
SVID2Modes Fixed	-
SVID2Mode1 Enter Mode	NO

Power Capabilities

Parameter	GetCapabilities
PD_Power_as_Sink
No_USB_Suspend_May_Be_Set	YES
GiveBack_May_Be_Set	NO
Higher_Capability_Set	NO
Num_Snk_PDOs
Supply Type #1	Fixed
Voltage #1	0x64(5V)
OP Current #1	0xA(.1A)
PD_Power_as_Source
Rp Value
USB Suspend may be cleared	YES
Send Ping	NONE
No of Source PDOs
Supply Type #1	Fixed
Peak Current #1	0x1(1A)
Voltage #1	0x64(5V)
Max Current #1	0x12C(3A)
Supply Type #2	Fixed
Peak Current #2	0x0(A)
Voltage #2	0xB4(9V)
Max Current #2	0x12C(3A)
Supply Type #3	Fixed
Peak Current #3	0x0(A)
Voltage #3	0xF0(12V)
Max Current #3	0x12C(3A)
Supply Type #4	Fixed
Peak Current #4	0x0(A)
Voltage #4	0x12C(15V)
Max Current #4	0x12C(3A)
Supply Type #5	Fixed
Peak Current #5	0x0(A)
Voltage #5	0x190(20V)
Max Current #5	0xFA(2.5A)
PD_Power_as_Sink
No_USB_Suspend_May_Be_Set	YES
GiveBack_May_Be_Set	NO
Higher_Capability_Set	NO
Num_Snk_PDOs
Supply Type #1	Fixed
Voltage #1	0x64(5V)
OP Current #1	0xA(.1A)

Result Summary

Sl No	Test ID	Test Name	Test Result
1	TDA.2.1.1.1	BMC-PHY-TX-EYE	PASS
2	TDA.2.1.1.2	BMC-PHY-TX-BIT	PASS
3	TDA.2.1.2.2	BMC-PHY-RX-INT-REJ	FAIL
4	TDA.2.1.2.1	BMC-PHY-RX-BUSIDL	PASS
7	TDA.2.2.1	BMC-PROT-SEQ-GETCAPS	FAIL
10	TDA.2.2.5	BMC-PROT-DISCOV	PASS
12	TDA.2.2.7	BMC-PROT-BIST-NOT-5V-SRC	PASS
19	TDB.2.2.9	BMC-PROT-GSC-REC	FAIL

BMC Eye Diagram

Here we can also see a load screenshot of the GRL-USB-PD C2 Compliance Test Solution App which shows that the Designo MX27UC Eye Care Monitor can enable charging at different voltages and current levels.