General Information for Eizo Monitors
EIZO FlexScan EV4340X-BK, 108 cm (42.5"), 3840 x 2160 pixels, 4K Ultra HD, LCD, 5 ms, Black
EV4340X-BK
With a 42.5 inch screen diagonal, the EIZO FlexScan EV4340X is ideal for use in control rooms, control centers, trading floors or similar work environments: Its 4K resolution (3840 x 2160 pixels) offers four times as much information as a Full HD monitor. In addition to two HDMI inputs and a DisplayPort connection, the monitor has full USB-C docking functionality including DisplayPort Alt Mode, transmission of video, audio and USB data signals and a power supply of up to 94 watts. The EV4340X also masters operation with multiple computers or image sources with ease. The integrated KVM switch allows the use of a keyboard and mouse combination on two computers. Thanks to its picture-in-picture (PbP) function, the monitor can display up to four video signals side by side. The button on the front can be used to conveniently switch between 12 available layouts. The picture-in-picture (PiP) function for two signal
sources offers efficient screen utilization for presentations and meetings. These and other important functions can be controlled on the monitor or via the supplied remote control. Therefore, the EIZO FlexScan EV4340X is also well suited for wall mounting when buttons on the device are not accessible. Its slim design makes grouping in multi-screen systems particularly easy.
EV4340X-BK
Further details for this product, EV4340X-BK, can be found at the manufacturer website. Please note, these web addresse(s) are supplied by 3rd parties, Quzo UK is not responsible for the content.
42.5" (108 cm), 3840 x 2160 (4K UHD), IPS, 350 cd/m², 1000:1, 5 ms, USB, LAN/RJ-45, HDMI, DisplayPort, 31 W
EIZO FlexScan EV4340X-BK. Display diagonal: 108 cm (42.5"), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: LCD, Response time: 5 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). Built-in USB hub, USB hub version: 3.2 Gen 1 (3.1 Gen 1). VESA mounting. Product colour: Black
Warranty information: 5 years
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EIZO FlexScan EV4340X-BK computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LCD Black EV4340X-BK Specifications
Product Type
Monitors
Brand
Eizo
Collection Model Eizo EV4340X-BK
Manufacturer Product Type
Eizo Monitors
Market positioning Office
Product colour
Black
Panel mounting interface 100 x 100,200 x 200 mm
VESA mounting Yes
Backlight type W-LED
Feet colour Silver
Form Factor
Everyday Monitors
Form Factor
Above 40" Monitors
Product Family
EIZO FlexScan
Product Family EV4340X-BK
High Dynamic Range (HDR) supported No
Display diagonal
42.5"
LED backlight Yes
Display brightness (typical) 350 cd/m
Native aspect ratio 16:9
Response Time 5 ms
Panel type
IPS
Touchscreen No
Display Resolution
3840 x 2160 pixels
Digital horizontal frequency 31 - 134 kHz
Digital vertical frequency 29 - 61 Hz
Display technology
LCD
Display technology
LED
Screen shape
Flat
Contrast ratio (typical) 1000:1
Maximum refresh rate
60 Hz
Viewing angle, horizontal 178
Viewing angle, vertical 178
Display number of colours 16.7 million colours
Display diagonal (metric) 108 cm
Pixel Pitch 0.245 x 0.245 mm
Pixel density 104 ppi
Viewable size, horizontal 94.1 cm
Viewable size, vertical 52.9 cm
HD type
4K Ultra HD
Anti-glare screen Yes
Built-in speaker(s) Yes
Number of Speakers 2
RMS rated power 8 W
Ethernet LAN Yes
Ethernet LAN data rates 10,100,1000 Mbit/s
Built-in USB hub Yes
HDMI ports quantity 2
Ethernet LAN (RJ-45) ports 1
DisplayPorts quantity 1
USB upstream port type USB Type-B, USB Type-C
Number of USB Type-B upstream ports quantity 1
Number of USB Type-C upstream ports quantity 1
USB Power Delivery up to 94 W
USB Type-C DisplayPort Alternate Mode Yes
USB Power Delivery (USB PD) Yes
Headphone out Yes
USB hub version 3.2 Gen 1 (3.1 Gen 1)
Number of upstream ports 1
USB Type-A downstream ports quantity 2
USB Type-C downstream ports quantity 1
HDCP version 1.4/2.3
Headphone outputs 1
Headphone connectivity 3.5 mm
HDCP Yes
HDMI Yes
Energy efficiency class (HDR) Not available
Energy efficiency class (SDR) E
Energy consumption (SDR) per 1000 hours 31 kWh
Power consumption (typical) 31 W
AC Input Voltage 100 - 240 V
Power consumption (max) 243 W
Power consumption (standby) 0.4 W
AC input frequency 50/60 Hz
Energy efficiency scale A to G
Width (with stand) 966.8 mm
Depth (with stand) 225.3 mm
Height (with stand) 631 mm
Width (without stand) 966.8 mm
Weight (without stand) 15.2 kg
Depth (without stand) 89.9 mm
Height (without stand) 571 mm
Weight (with stand) 15.9 kg
AMD FreeSync No
Built-in camera No
Flicker-free technology Yes
Low Blue Light technology Yes
Automatic brightness control Yes
NVIDIA G-SYNC No
On Screen Display (OSD) Yes
Picture-in-Picture Yes
On Screen Display (OSD) languages German, English, Spanish, French, Italian, Swedish
European Product Registry for Energy Labelling (EPREL) code 1959944
Picture-by-Picture (PbP) Yes
Height adjustment No
Harmonized System (HS) code 85285210
Colour gamut standard sRGB
Operating temperature (T-T) 5 - 35 C
Storage temperature (T-T) -20 - 60 C
Storage relative humidity (H-H) 10 - 90%
Operating relative humidity (H-H) 20 - 80%
Built-in KVM switch Yes
Sustainability certificates ENERGY STAR, EPEAT Climate +, EPEAT Silver, TCO
Warranty period 5 year(s)
Sustainability compliance Yes
Stand Included Yes
Cables included AC, DisplayPort, USB Type-A to USB Type-B, USB Type-C to USB Type-C
Quick start guide Yes
Manual Yes
Remote Control Included Yes
Look-up table (LUT) bit depth 14
Colour of product Black
Product Line
EIZO Flexscan
MPN EV4340X-BK
Video Inputs DisplayPort
Monitor Response Time
5ms Monitors
Monitor Video Inputs
DisplayPort Monitors
Most Suitable For Casual Computing
EIZO FlexScan EV4340X-BK computer monitor 108 cm (42.5") 3840 x 2160 pixels 4K Ultra HD LCD Black EV4340X-BK Reviews
Verified Customer - 5 out of 5 Reviewed on feefo.com in the United Kingdom on 04 April 2026
Eizo is a niche brand. Their monitors are not the fastest, they’re not the brightest, they don’t have all the bells and whistles of “gaming†monitors so if you are looking at high refresh rates, UHD, bling lights, sound quality to rival dedicated speakers etc look elsewhere.
What they do have is superb picture quality for office work and the bulletproof reliability of a product made in Japan. Which is why you will frequently see Eizo monitors for instance in a Radiology room. They do not break, they are designed to last a decade, they just work no matter what you throw at them - be it a MAC, a Windows computer, a console etc.
This particular model is huge, essentially a 43 inch TV with passable sound quality (slightly better compared to their smaller screens as they integrate larger speakers but still not up there with, say, the Apple Studio) and an integrated KVM switch which works with two computers - the one connected via USB-C and a second HDMI / DisplayPort of your choice. There is also a Ethernet connection which can be shared. You get a IR remote control as well which can turn it on/off, enter menus, adjust volume, brightness etc.
It is a complete office package, particularly useful if you need, for instance, to display two desktops (or three, or four) at the same time, side by side which you can do using the dedicated Eizo app.
Every time I get bored of Eizo and get a bling monitor (the most recent was an Apple Studio) I inevitably end up missing the Japanese screen because it is easy on the eyes and it just works, no matter the environment. It doesn’t impress when you look at the specs and the image might seem bland on first impression (although do watch a 4K 60Hz video on YouTube before dismissing it!) but that is the point: Eizo is a workhorse, it’s an accurate monitor which simply displays what is on screen, without fuss and without trying to impress in any way.
Highly recommended
Inle - 4 out of 5 Reviewed on techpowerup.com in the United Kingdom on 03 March 2025
The FlexScan EV4340X is the largest monitor currently offered by the famous Japanese manufacturer EIZO. Sporting a 42.5-inch 4K IPS panel and a host of productivity-focused features, the FlexScan EV4340X is designed for use in control rooms, financial in...
+Huge 42.5-inch 4K display offers a ton of screen real estate, Impressive multitasking capabilities, Supports 4-source Picture-by-Picture mode with 12 layout options, Versatile connectivity, including a USB-C port with DP Alt Mode and 94 W Power Deliv-High input lag, Slow pixel response times, Limited ergonomic adjustability, Thick bezels, ExpensiveThe EIZO FlexScan EV4340X is available online for $2,000 (around €1,600 in Europe). It comes with a five-year warranty. Huge 42.5-inch 4K display offers a ton of screen real estate Impressive multitasking capabilities Supports 4-source Picture-by-Picture...