Description
ST-NMXB44C 18Gbps 4x4 HDMI Matrix Switch is a professional HDMI 2.0 matrix designed to distribute four HDMI sources to four HDMI displays with support for 4K@60Hz 4:4:4, HDR10+, Dolby Vision, HDCP 2.2 and advanced EDID management.
The ST-NMXB44C 18Gbps 4x4 HDMI Matrix Switch supports seamless AV switching, distribution mode, and independent output selection. Each HDMI output supports 4K to 1080P downscaling, making it suitable for conference rooms, digital signage, education, control rooms, retail stores and professional AV installations.
Features
☆ HDMI 2.0b, HDCP 2.2 / 1.x and DVI 1.0 compliant
☆ Up to 4K2K@60Hz with 24bit RGB/YCbCr 4:4:4
☆ HDR, HDR10, HDR10+, Dolby Vision passthrough
☆ Support LPCM 7.1CH, Dolby TrueHD, and DTS-HD Master Audio
☆ Support 4K→1080P Downscaler
☆ Support advanced EDID management
☆ Flexible control via panel or IR remote control
Package Contents
① 1× 4×4 HDMI Matrix
② 1× 12V/2.5A Power Adapter
③ 1× Matrix IR Remote Control
④ 1× User Manual
⑤ 2× Mounting Ears
Specifications
| Technical | |
| HDMI Compliant | HDMI 2.0b |
| HDCP Compliant | HDCP 2.2 / 1.x |
| Video Bandwidth | 594MHz / 18Gbps |
| Video Resolution | 480i ~ 1080p 50/60Hz, 4Kx2K@24/30Hz, 4K2K@60Hz 8-bit (4K2K@60Hz YUV4:4:4) 8-bit, 10-bit, 12-bit (4K2K@60Hz YCbCr 4:2:2 / 4:2:0) 8-bit, 10-bit, 12-bit (1080p@60Hz) |
| Color Space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit |
| HDMI Audio Formats | LPCM 7.1CH, Dolby TrueHD, and DTS-HD Master Audio |
| ESD Protection | Human-body Model: ±8kV (Air-gap discharge), ±4kV (Contact discharge) |
| Connection | |
| Inputs | 4× HDMI Type A [19-pin female] 1× IR Receiver Window 1× Micro USB |
| Outputs | 4× HDMI Type A [19-pin female] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | 220mm (W) × 105mm (D) × 19mm (H) |
| Weight | 535g |
| Power | |
| Power Supply | Input: AC 100~240V 50/60Hz Output: DC 12V/2.5A (US/EU standard, CE/FCC/UL certified) |
| Power Consumption | 11.04W |
| Environmental | |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -20°C ~ 60°C / -4°F ~ 140°F |
| Relative Humidity | 20~90% RH (non-condensing) |
Operation Controls and Functions
Front Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | IR | IR receive window. |
| 2 | Power LED | The red LED illuminates when the device is working or on standby. |
| 3 | OUT 1 |
Button: Short press to switch the input selected by OUT 1; Long press for 3s to turn on/off the downscaler corresponding to OUT 1. LED: When switching to the corresponding input source, the corresponding input LED illuminates green; otherwise, the LED will not light up. |
| 4 | OUT 2 |
Button: Short press to switch the input selected by OUT 2; Long press for 3s to turn on/off the downscaler corresponding to OUT 2. LED: When switching to the corresponding input source, the corresponding input LED illuminates green; otherwise, the LED will not light up. |
| 5 | OUT 3 |
Button: Short press to switch the input selected by OUT 3; Long press for 3s to turn on/off the downscaler corresponding to OUT 3. LED: When switching to the corresponding input source, the corresponding input LED illuminates green; otherwise, the LED will not light up. |
| 6 | OUT 4 |
Button: Short press to switch the input selected by OUT 4; Long press for 3s to turn on/off the downscaler corresponding to OUT 4. LED: When switching to the corresponding input source, the corresponding input LED illuminates green; otherwise, the LED will not light up. |
| 7 | SERVICE | Connect to PC via Micro to USB cable for firmware upgrade. |
Rear Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | INPUT | Connect to HDMI source device such as DVD player or PC. |
| 2 | OUTPUT | Connect to HDMI display device such as TV or Projector. |
| 3 | EDID | EDID SWITCH control. 0000 — 1080P, Stereo Audio 2.0 0001 — 1080P, Dolby/DTS 5.1 0010 — 1080P, HD Audio 7.1 0011 — 4K2K30_444, Stereo Audio 2.0 0100 — 4K2K30_444, Dolby/DTS 5.1 0101 — 4K2K30_444, HD Audio 7.1 0110 — 4K2K60_444, Stereo Audio 2.0 SDR 0111 — 4K2K60_444, Dolby/DTS 5.1 SDR 1000 — 4K2K60_444, HD Audio 7.1 SDR 1001 — 4K2K60_444, Stereo Audio 2.0 HDR 1010 — 4K2K60_444, Dolby/DTS 5.1 HDR 1011 — 4K2K60_444, HD Audio 7.1 HDR 1100 — COPY OUTPUT 1 1101 — COPY OUTPUT 2 1110 — COPY OUTPUT 3 1111 — COPY OUTPUT 4 |
| 4 | DC 12V | DC 12V power supply interface. |
Remote Control
| Button | Function Description |
|---|---|
| ① Power button | Press this button to power on the device or put it into standby mode. |
| ② 1/2/3/4 (Output 1) | Press buttons 1~4 to select the required source for Output 1. |
| ③ ◄ ► (Output 1) | Select the last or next input channel among 1/2/3/4 to select the required source for Output 1. |
| ④ SD (Output 1) | Press this button to turn on / off the downscaler function. |
| Output 2 / Output 3 / Output 4 | The corresponding button function of Output 2/Output 3/Output 4 is the same as that of Output 1. |
Application Example
