| ENERGY STAR Partner |
| Dell Inc. |
Dell Inc. |
| Product Category |
| Displays |
Displays |
| Type |
| Signage Display |
Monitor |
| Brand Name |
| DELL |
DELL |
| Model Name |
| C5518QT |
U4320Q |
| Model Number |
| C5518QTt |
U4320Qt |
| Date Available On Market |
| May 22, 2017 |
December 19, 2019 |
| Date Certified |
| July 16, 2019 |
August 21, 2019 |
| Markets |
| United States, Switzerland, Taiwan, Japan, Canada |
United States, Switzerland, Taiwan, Japan, Canada |
| CB Model Identifier |
| ES_29573_C5518QTt_07172019115418_6123578 |
ES_29573_U4320Qt_08222019221704_9895458 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| Product Type |
| Signage Display |
Monitor |
| Panel Type |
| IPS LCD |
IPS LCD |
| Native Resolution (pixels) |
| 3840 x 2160 |
3840 x 2160 |
| Total Native Resolution (megapixels) |
| 8 |
8.3 |
| Screen Size |
| 54.6 inches / 138.68 cm |
42.5 inches / 107.95 cm |
| Screen Area (square inches) |
| 1275.7 inches / 3240.28 cm |
772.33 inches / 1961.72 cm |
| Model Features |
| Full Network Connectivity,Touch Screen,Built-In Speakers |
USB-C,Built-In Speakers |
| Features Enabled in Default On Mode |
| Full Network Connectivity,Touch Screen,Built-In Speakers |
Built-In Speakers |
| Features Enabled in Default Sleep Mode |
| Full Network Connectivity |
None |
| Signal or Data Interfaces |
| Display,HDMI,RS232,VGA,Other,RJ45,USB |
Display,HDMI,USB |
| Power Source |
| Ac to dc internal power supply |
Ac to dc internal power supply |
| On Mode Power (watts) |
| 77 |
50.74 |
| Maximum On Mode Power Limit for Signage Certification (watts) |
| 99 |
N/A |
| Sleep Mode Power (watts) |
| 1 |
0.56 |
| Maximum Sleep Mode Power Limit for Signage Certification (watts) |
| 4 |
N/A |
| Off Mode Power (watts) |
| 0 |
0.25 |
| Maximum Luminance (candelas per square meter) |
| 350 |
400 |
| Enhanced-Performance Display? |
| No |
Yes |
| Color Gamut |
| 0 |
0.3 |
| Color Spaces Supported |
| None |
None |
| High Dynamic Range (HDR) |
| N/A |
N/A |
| Display Contrast Ratio at 0 deg. Horiz. Viewing Angle |
| 1,200 |
1000 |
| USB-C with Power Delivery Supported |
| No |
Yes |
| Tiled Display System |
| No |
No |
