# 43" IIYAMA ProLite X4373UHSU-B2 LED 4K Ultra HD monitor, 3840×2160, VA panel, 3 ms, 450 cd/m², USB 3.2 hub, speakers, VESA, black

**URL:** https://aio.lv/en/product--iiyama-x4373uhsu-b2--11683107
**Data updated:** 2026-02-03 08:10 (EET)
**Category:** Monitors
**Manufacturer:** IIYAMA
**Manufacturer code:** X4373UHSU-B2
**EAN:** 4948570126590
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 694.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 574.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--iiyama-x4373uhsu-b2--11683107

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.89 EUR |
| Courier delivery to door | 15.07.2026 | 15.00 EUR |

## Summary description

The IIYAMA ProLite X4373UHSU-B2 is a 43" (109.2 cm) LED monitor with 4K Ultra HD resolution (3840×2160) and a VA panel. It offers a 3 ms response time, 450 cd/m² brightness, 4000:1 contrast ratio and wide 178° viewing angles. Integrated USB 3.2 Gen 1 hub and built-in speakers add connectivity and convenience. VESA mounting supported — suitable for office, multimedia and professional viewing tasks.

## Long description

The IIYAMA ProLite X4373UHSU-B2 is a 43" (109.2 cm) LED monitor offering 4K Ultra HD resolution (3840×2160) on a VA panel. It delivers a combination of high brightness, wide viewing angles and deep contrast suitable for professional workflows. The monitor supports a dual-mode display: native 3840×2160 for detailed content work and 1920×1080 at 120 Hz for smoother motion when showing dynamic feeds. Built-in USB-C power delivery, an integrated USB 3.2 hub, an integrated KVM switch and speakers simplify multi-device setups and reduce desk clutter.
Advantages
The large 43" VA panel provides deep blacks and a high contrast ratio, improving detail in dark scenes while maintaining wide 178° viewing angles. High 450 cd/m² brightness ensures clear visibility in various lighting conditions. Dual display modes let you choose between 4K clarity for data- and content-intensive tasks or a 120 Hz Full HD mode for smoother motion. Integrated features — USB hub, KVM switch, USB-C with power delivery and speakers — enable easier connection, device control and charging from a single screen.
Suitable for
 Content creation and video/photo editing
 Financial dashboards and data analysis
 Control rooms and monitoring stations
 Multi-device office setups with switching between computers
Key specifications
 Display size: 43" (109.2 cm), flat LED panel
 Resolution: 3840 × 2160 (4K Ultra HD)
 Panel type: VA with 178° viewing angles
 Brightness: 450 cd/m² (typical)
 Contrast ratio: 4000:1 (typical)
 Response time: 3 ms
 Refresh modes: 60 Hz in 4K, option for 1920×1080 at 120 Hz
 Connectivity: USB-C with power delivery, USB 3.2 hub, integrated KVM
 Audio: built-in speakers
 Mounting: VESA compatible
 Energy class (SDR): E; Typical energy consumption (SDR): 41 kWh/1000h
How to use
Connect your primary device via USB-C to use single-cable video, data and up to 95 W power delivery. Use the integrated USB hub to attach peripherals and connect a second computer to the extra inputs; the built-in KVM switch allows switching control between systems with one keyboard and mouse. Select the appropriate display mode in the monitor OSD or with the remote control: 4K 3840×2160 for detailed work or 1920×1080 at 120 Hz for smoother live or dynamic content. Adjust brightness, picture settings and blue light filter in the OSD for optimal viewing.
Usage recommendations
For extended use sessions enable the flicker-free mode and reduced blue light setting to minimise eye strain. Use the 4K mode for productivity and content editing, and switch to Full HD 120 Hz when monitoring live feeds or video with fast motion. If wall- or arm-mounting, ensure the VESA mount supports the weight and size of a 43" monitor.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display diagonal | 43 " |
| Display technology | LED |
| HD type | 4K Ultra HD |
| Panel type | VA |
| Display resolution | 3840 x 2160 |
| Pixel pitch | 0.245 x 0.245 |
| Response time | 3 ms |
| Contrast ratio (typical) | 4000:1 |
| Display brightness (typical) | 450 cd/m² |
| Viewing angle, vertical | 178 ° |
| Viewing angle, horizontal | 178 ° |
| Horizontal scan range | 30 - 135 |
| Display diagonal (metric) | 108 cm |
| Contrast ratio (dynamic) | 80000000:1 |
| Native aspect ratio | 16:9 |
| Display number of colours | 1.07 billion colours |
| Touchscreen | No |
| NTSC coverage (typical) | 85 % |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | High Dynamic Range 10 (HDR10) |
| Colour gamut standard | NTSC, sRGB |
| Response time measurement type | GTG (Gray to Gray) |

### Design

| Feature | Value |
|---|---|
| Screen shape | Flat |
| Product colour | Black |
| Panel mounting interface | 200 x 100 |
| Market positioning | Business |

### Ports & interfaces

| Feature | Value |
|---|---|
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| Headphone out | Yes |
| Built-in USB hub | Yes |
| USB hub version | 3.2 Gen 1 (3.1 Gen 1) |
| USB upstream port type | USB Type-C |
| HDMI version | 2.0 |
| HDMI | Yes |
| Built-in KVM switch | Yes |
| DisplayPort version | 1.2 |

### Ergonomics

| Feature | Value |
|---|---|
| Wall mountable | Yes |
| Cable management | Yes |
| Tilt adjustment | Yes |
| Cable lock slot type | Kensington |
| VESA mounting | Yes |

### Audio

| Feature | Value |
|---|---|
| Built-in speaker(s) | Yes |

### Performance

| Feature | Value |
|---|---|
| HDCP | Yes |
| sRGB coverage (typical) | 100 % |
| On Screen Display (OSD) | Yes |
| On Screen Display (OSD) languages | ESP, UKR, POL, DUT, JPN, RUS, POR, ITA, ENG, DEU, FRE |
| Flicker-free technology | Yes |
| Low Blue Light technology | Yes |

### Multimedia

| Feature | Value |
|---|---|
| RMS rated power | 7 W |
| Built-in camera | No |
| Number of speakers | 2 |

### Other features

| Feature | Value |
|---|---|
| Maximum refresh rate | 60 Hz |
| Viewable size, vertical | 941.18 mm |
| Power cable length | 18 m |
| Power supply type | Internal |
| Viewable size, horizontal | 529.42 mm |
| Cable lock slot | Yes |
| Height adjustment | No |
| Tilt angle range | 2 - 10 |
| Package type | Box |

### Power

| Feature | Value |
|---|---|
| Energy efficiency class (SDR) | E |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 41 kWh |
| Energy consumption (HDR) per 1000 hours | 79 kWh |
| Power consumption (typical) | 41 W |
| Power consumption (off) | 0.5 W |
| Power consumption (standby) | 0.5 W |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |
| Energy efficiency scale | A to G |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight (with stand) | 14700 g |
| Width (with stand) | 977.5 mm |
| Height (with stand) | 621.5 mm |
| Depth (with stand) | 251 mm |

### Packaging content

| Feature | Value |
|---|---|
| Remote control included | Yes |
| Cables included | Power, USB Type-C, DisplayPort, USB, HDMI |
| Remote control batteries included | Yes |
| HDMI cable length | 1.8 m |
| DisplayPort cable length | 1.8 m |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 19300 g |
| Package depth | 240 mm |
| Package height | 760 mm |
| Package width | 1071 mm |

## FAQ

### How much does the IIYAMA ProLite X4373UHSU-B2 43" 4K monitor cost, and is it available for purchase?

The price is 694.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 52 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 10.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can IIYAMA ProLite X4373UHSU-B2 43" 4K monitor be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All IIYAMA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized IIYAMA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: display diagonal, display resolution, hd type, panel type, display technology, pixel pitch, response time, contrast ratio (typical), display brightness (typical), screen shape, built-in usb hub, vesa mounting, built-in speaker(s), energy efficiency class (sdr), energy efficiency class (hdr), energy consumption (sdr) per 1000 hours, energy consumption (hdr) per 1000 hours, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for IIYAMA ProLite X4373UHSU-B2 43" 4K monitor?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11683107/67033399_large.webp