Skip to main content

Dell 86 4K Interactive Touch Monitor: C8621QT

A touch above the rest

An 85.6" display delivers intelligent, responsive technology for improved collaboration. The design features 20-points of touch and integrated speakers.


Diagonal VIS (Viewable Image Size)
2174.27 mm
85.6 inch

Pixel Pitch
0.4935 mm x 0.4935 mm

Typical Response Time
8 ms typical (G to G), 12 ms max. (G to G )

Display Orientation 

Duty Cycle
12/7 (typical)

Viewable Image Dimension:

Horizontal :
-1895.04 mm (74.60 in.); Vertical :- 1065.96 mm (41.97 in.)

Bezel width with black paint (Edge of Monitor to Edge of viewable screen)
43.72 mm (1.72 in.) (Top)
43.80 mm (1.72 in.) (Left/Right)
46.96 mm (1.85 in.) (Bottom)

Aspect Ratio

Viewing Angle (Vertical/Horizontal)

Luminance (Brightness)
350 cd/m² (typical)

Contrast Ratio (Typical)
Dynamic Contrast Ratio (DCR)
1200 to 1 (typical)

LED light bar system (edge light system)

Backlight Life Time 
30,000hrs (min)

Color Gamut
72% (CIE1931)

Number of Colors
1.07 Billon colors

Internal Processing

Pixel per Inch

Panel Technology, Surface

Panel - bits
10 bits

Screen Type:
Heat Tempered Glass ( 4mm)

Surface Hardness

Surface Treatment
Anti-Smudge, Anti-Glare


Monitor Connectivity

1 DP 1.2
1 USB Type-C (Alternate mode with DisplayPort 1.2, Power Delivery PD up to 90 W)
4 HDMI 2.0
3 USB 3.1 downstream port
1 USB BC1.2 charging port at 2A (max)
3 USB 3.1 upstream port
1 Analog 2.0 audio line out (3.5 mm jack)
1 RJ-45
1 RS232

USB 2.0 Ports (unless otherwise stated) : No
Daisy Chain availability : No
Dell Display Manager Compatibility : Yes

Remote Asset Management
1 RS232 input
1 RJ45 (TCP-IP Command Set, Crestron Roomview Express Certified)

Industrial Design: Dell
Integrated Camera and Mic: No
Optional Soundbar: Integrated Speaker (20W x 2)
Slot for Stand Lock (to panel): No
Port for Security Cable Lock: Yes for PC box holder to house MFF Optiplex
Bezel Color: Bezel - Anodized black , Deco Trim - Anodized era grey
Height Adjustable Stand: No
Height Spread: NA
Swivel and Tilt: No
Pivot Function (Landscape/Portrait Mode): No
Media Card Reader: NA
Capacitive Touch OSD Controls: Touch OSD (using InGlassTM technology)
Height (fully extended): NA

Dimensions & Weight

Height (compressed/standard) x Width x Depth
1156.63 mm (45.54 in.) x 1982.64 mm (78.06 in.) x 82.8 mm (3.26 in.)

VESA Mount Point (Wall/Stand)
600 x 400 mm

Monitor Head (No Stand) Height x Width x Depth:
1156.63 mm (45.54 in.) x 1982.64 mm (78.06 in.) x 82.8 mm (3.26 in.)

Weight (panel only) for VESA mount (no cables)
 86.5 kg (190.70 lb)

Weight (with packaging)
114.5 kg (252.43 lb)


Power Usage:
AC input voltage 100-240 VAC / 50 or 60 Hz ± 3 Hz / 7.0 A (maximum)
Operating (Typical - Maximum) 175W - 430W
Active Off Less than 0.3W
Switched Off Less than 0.3W

Operating 0°C to 40°C (32°F to 104°F)
Non-operating (Shipping Conditions) –20°C to 60°C (–4°F to 140°F)

Operating 10% to 80% (non-condensing)
Non-operating (Shipping Conditions) 5% to 90% (non-condensing)

Operating 5,000 m (16,404 ft) (maximum)
Non-operating (Shipping Conditions) 12,192 m (40,000 ft) (maximum)
Thermal dissipation 1467.22 BTU/hour (maximum), 597.12 BTU/hour (typical)
TCO Certification/Color No
Energy Star Compliance ES 8.0
GSA/TAA Availability No
Country of Origin China


What's Included

Power cord (varies by country)
Power cable for connecting Optiplex system to display (1 meter)
USB 3.1 upstream cable (3 meter)
DP cable (DP to DP) (3 meter)
HDMI cable (3 meter)
USB Type-C cable (1.8 meter)
1 Remote Control
1 Remote holder
2 Passive stylus
2 Passive stylus nib
3 Cable clips
1 PC box holder
2 AAA Batteries

Vast visuals

Vast visuals

An enormous 85.6" screen is the ideal canvas for displaying 4K UHD images. No matter where you stand or sit, the image quality is consistent thanks to In-Plane Switching (IPS) technology. Sharp text, ComfortView, and anti-glare, anti-smudge coatings deliver greater legibility and a better extended viewing experience.
Engage and involve your audience

Engage and involve your audience

Exclusive to Dell. Inclusive to all: Improve reachability for users of different heights using our exclusive Dell Screen Drop technology, the world's first accessibility feature on a Large Format Monitor.* Raise, lower and mark up the image at three different height settings via the buttons at the side of the panel.

Sounds like a great presentation: Built-in 2x20W speakers make multimedia presentations more impactful.

Real-time teamwork

Group work without the wait: Twenty-point InGlass™ Touch enables multiple workers to interact with the screen simultaneously, for more natural collaboration.

More options. Less lag: Whether you’re using your fingers, palm or stylus, you can write or draw in real time with virtually zero lag. And, since the touch functionality is compatible with most industry-standard software (as well as included FlatFrog software), it integrates seamlessly into however you work.

Improved stylus: Mimicking a more natural writing tool, the stylus has an ergonomic, easy-grip design, a fine writing tip and a precise eraser. It also magnetically attaches to the side of the display, so it’s never misplaced.
Seamless design

Seamless design

The power of USB-C: Get up to 90W of power delivery so you can keep your laptop battery charged and enjoy uninterrupted productivity.

All-in-one convenience: This interactive touch monitor seamlessly integrates an optional Dell OptiPlex Micro PC, which allows IT to select the best option for your business needs. Including the ability to upgrade as needed and easily upload your preferred corporate image, that gives you a display solution which adheres to your company’s security and service standards.

Easy manageability: IT can solve issues and manage the display remotely thanks to a range of tools, including RS232, RJ45, HDMI CEC ports and the TCP/IP command set.

More ways to display: Quickly tile and arrange your applications by conveniently selecting from predefined templates with the Easy Arrange feature on Dell Display Manager software. You can also start presentations faster with Auto-restore, a feature that remembers your last presentation layout.
Connectivity Options

Connectivity Options

Ports & Slots: 
1. HDMI 2.0 x 4 | 2. Display Port 1.2 | 3. USB Type-C | 4. Audio Line-Out* | 5. USB 3.1 Upstream x 3 | 6. USB 3.1 Downstream x 3 | 7. USB Dedicated Charging Port | 8. RS232 | 9. RJ45

Cables Included:
1. HDMI 2.0 Cable | 2. USB Type-C Cable | 3. DisplayPort Cable | 4. USB 3.1 Cable | 5. Power Cord | 6. OptiPlex Power Cord

Peace of mind, guaranteed

Our products are engineered with care and precision, so we guarantee support and peace of mind.
A brand you can rely on
A brand you can rely on
As the No. 1 monitor company worldwide for six consecutive years (2013 to 2019)*, we take pride in our unyielding commitment to quality and the utmost satisfaction of our customers.
Advanced Exchange Service
Advanced Exchange Service
Your monitor comes with a 3-year Advanced Exchange Service* so that if a replacement becomes necessary, it will be shipped to you the next business day during your 3-year Limited Hardware Warranty.Upgrade to 24x7 specialized technical phone support with Dell ProSupport options.*
Reliable and responsible
Reliable and responsible
Designed with the environment in mind, this monitor meets the latest regulatory and environmental compliance such as ENERGY STAR®, RoHS compliance, China Energy Label (CEL), WEEE and ErP (EuP) standards.


Complete your experience with accessories designed to make the most of your Dell Monitor.
OptiPlex 7060 Micro PC with Intel® Unite™
OptiPlex 7060 Micro PC with Intel® Unite™
Transform your conference room with easy, wireless collaboration, real-time sharing, annotation and more.
X-Large Fusion Micro-Adjustable Fixed Wall Display Mount | XSM1U
X-Large Fusion Micro-Adjustable Fixed Wall Display Mount | XSM1U
This improved wall mount includes features like extra stability, faster install, improved lateral shift, easier cable management and enhanced security.
X-Large Fusion Manual Height Adjustable Cart | XPA1UB
X-Large Fusion Manual Height Adjustable Cart | XPA1UB
Rounded edges and sleek features give a softer professional feel that fits well in many environments. Adjust the height without removing the screen.
X-Large Fusion Floor Stand | XFA1UB
X-Large Fusion Floor Stand | XFA1UB
This floor AV stand with rounded edges and sleek features fits well in corporate and classroom environments. The height can be adjusted by a single user without removing the screen.
Logitech Rally Plus
Logitech Rally Plus
Hear and be heard with life-like clarity with four, omnidirectional microphones and 360-degree coverage. It’s ideal for large meeting and learning spaces.
Actiontec ScreenBeam Enterprise 960
Actiontec ScreenBeam Enterprise 960
Get the flexibility to present from anywhere in the room, and even interact from a front-of-room touchscreen, with this enterprise-grade wireless display receiver.
Drivers, Manuals & Support

Dell Support

From drivers and manuals to diagnostic tools and replacement parts, Dell Product Support has you covered!

Intel® Core™ Processors


Compare Products ()

Add the products you would like to compare, and quickly determine which is best for your needs.

Add the products you would like to compare, and quickly determine which is best for your needs.