Product details
The CJ791 has two Thunderbolt 3 interfaces to connect to Macs and PCs. Thunderbolt 3 transfers video and data at speeds of up to 40GB per second - eight times faster than USB 3.0 - while charging devices (up to 85W) with just one cable.
The 34" widescreen display with a 21:9 aspect ratio gives you a generous display area so you can multitask comfortably and efficiently. You no longer need two screens while still saving precious desk space.
Quantum Dot technology supports an impressive sRGB color space, delivering not only more hues than conventional monitors, but also brighter, sharper, and more natural colors - especially in reds and greens. Plus, each monitor is factory calibrated to reproduce accurate and lifelike colors.
Monitor type | Curved monitor, PC Monitor |
Display resolution | WQHD |
Screen technology | LED, QLED |
Refresh rate | 100 Hz |
Video connections | DisplayPort (1x), HDMI (1x), Thunderbolt (2x) |
USB ports | USB-A, USB-C |
Monitor equipment | Daisy chain, Integrated loudspeakers |
Documents | |
Item number | 9387981 |
Manufacturer | Samsung |
Category | Monitor |
Manufacturer no. | LC34J791WTRXEN |
Release date | 13/8/2018 |
Colour | White |
Exact colour description | White |
Monitor type | Curved monitor, PC Monitor |
Display size (inches) | 34" |
Screen size (cm) | 86.40 cm |
Image resolution | 3440 x 1440 pixels |
Display resolution | WQHD |
Screen technology | LED, QLED |
Panel technology | VA |
Refresh rate | 100 Hz |
Aspect ratio | 21:9 |
Screen surface | Anti-glare |
Contrast ratio | 3000 :1 |
Response time (grey-to-grey) | 4 ms |
Brightness | 300 cd/m² |
Colour space coverage | Adobe RGB: 92, sRGB: 125% |
Viewing angle (H) | 178° |
Viewing angle (V) | 178° |
Screen curvature | 1500R |
Monitor equipment | Daisy chain, Integrated loudspeakers |
Connectivity | HDMI, USB |
Touch | Without touch function |
Sync-Technology | AMD freesync |
Adjustability | Height-adjustable, Tiltable |
VESA wall mount | 100 x 100 mm |
Video connections | DisplayPort (1x), HDMI (1x), Thunderbolt (2x) |
HDMI version | 2.0 |
DisplayPort version | 1.2 |
USB ports | USB-A, USB-C |
Exact USB ports | USB-A 1.0 (1x), USB-C 4 (2x) |
Audio Connections | Jack 3.5mm (1x) |
Network connections | RJ45 (1x) |
USB Type C Power supply | 85 W |
Power consumption | 65 W |
Power consumption (standby) | 0.30 W |
Power consumption (Off) | 0.30 W |
Energy consumption per year | 95 kWh |
Energy efficiency class | G |
CO₂-Emission | |
Climate contribution |
Scope of delivery | HDMI cable, Installation CD, Power cord, Quick Installation Guide, Thunderbolt 3 Cables |
Width | 808.70 mm |
Length | 309.40 mm |
Height | 516 mm |
Weight | 7.70 kg |
Length | 90 cm |
Width | 59 cm |
Height | 37 cm |
Weight | 13.28 kg |
Product Safety |
Compare products
Goes with
Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Monitor» category have a defect within the first 24 months?
Source: Galaxus- 14.ASUS1,5 %
- 14.Lenovo1,5 %
- 16.Samsung1,6 %
- 16.Verbatim1,6 %
- 16.Viewsonic1,6 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 12.LC-Power5 days
- 15.Mobile Pixels6 days
- 15.Samsung6 days
- 17.BenQ7 days
- 17.Eizo7 days
Return rate
How often is a product of this brand in the «Monitor» category returned?
Source: Galaxus- 10.Eizo3 %
- 11.Hannspree3,1 %
- 11.Samsung3,1 %
- 13.Verbatim3,6 %
- 14.LG4 %