ST-NMXB44C 18Gbps 4x4 HDMI Matrix
ST-NMXB44C 18Gbps 4x4 HDMI Matrix
The 4x4 HDMI Matrix supports the transmission of video signal (up to
4K2K@60Hz YCbCr 4:4:4) with multichannel digital audio from up to four
high definition sources to up to four HDMI outputs. Each output supports
downscaler functionality. It can display the same or different screen on four
displays (the user can choose the display screen for any signal source).
Also, the product has distribution mode and switching mode.
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 | HDCP 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 x HDMI Type A [19-pin female] 1 x IR Receiver Window 1 x Micro USB |
| Outputs | 4 x 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: AC100~240V 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 |
|---|---|---|
| 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 Output1. |
| ③ ◄ ► (Output 1) | Select the last or next input channel among 1/2/3/4, to select the required source for Output1. |
| ④ SD (Output 1) | Press this button to turn on / off the downscaler function. |
| Output2 / Output3 / Output4 | The corresponding button function of Output2/Output3/Output4 is the same with that of Output1. |
Application Example

Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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