Dell 55 4K Interactive Touch Monitor: C5518QT

Built for bigger-than-life collaboration. Keep your audience engaged with a 55-inch 4K touch display with dazzling visuals, designed for seamless collaboration.

Diagonal VIS (Viewable Image Size): 1397 mm (54.64 inch)
Viewable Screen Area (Horizontal x Vertical): 1209 mm (47.44 in)
680 mm (26.77 in)
822120 mm (1269.96 in)
Response Time: 8 ms
Aspect Ratio: 16:9
Touch: Up to 20 points Fingers Touch
Up to 4 points Pens Touch
Touch technology: In Glass™ touch technology
Backlights: LED
Brightness: 350 cd/m² (typical)
Viewing Angle (Vertical/Horizontal): 178°/178°
Color Support:
Color Gamut: 72% (CIE 1931)
Color Depth: 1.07 billion colors
Color Support: Color Gamut: 72% (CIE 1931)
Color Depth: 1.07 billion colors
Pixel Pitch: 0.315 mm x 0.315 mm
Contrast Ratio: 1000:1 (DCR)


3840 x 2160

Speaker included:
Integrated speakers (10W x 2)

Bezel Color:
Black / Silver Trim

Panel – bits:
10 bit

Panel type with screen coating:
In-Plane Switching type

Dell Display Manager (DDM) Compatibility:

4mm heat tempered glass


Glass Hardness:

Cover Glass Coating:

AG, AS, 5% haze


3 x HDMI 2.0
1 x DisplayPort 1.2
1 x VGA
1 x Audio Input
1 x Headphone Output
1x RJ 45
3 x USB 3.0
1 x USB dedicated charging port
1 x RS232

Remote Asset Management:
1x RJ 45
1 x RS232


Security lock slot (cable lock sold separately)

Dimensions & Weight

Monitor Head (No Stand):
Height:784.5 mm (30.88 in)
Width: 1298.6 mm (51.12 in)
Depth: 90.6 mm (3.56 in)

Weight (panel only) for VESA mount – no cables:
53 kg – 116.84 lb

Weight with packaging:
55 kg – 121.25 lb


Built in power supply


Temperature Operating:

0° to 40°C (32° to 104°F)

Temperature Nonoperating (Shipping Conditions):
Storage: -20° to 60°C (-4° to 140°F)
Shipping: -20° to 60°C(-4° to 140°F)

Humidity Operating:
10% to 80% (noncondensing)

Humidity Nonoperating (Shipping Conditions):
Storage: 5% to 90% (noncondensing)
Shipping: 5% to 90%(noncondensing)

Altitude Operating:
5000m (16,400 ft) max

Altitude Nonoperating (Shipping Conditions):
12,192m (40,000 ft) max


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