ST-NMXC42A 8K HDMI 4x2 Matrix Switch | HDMI 2.1 HDR eARC
- Striped
- Black
- AC-powered
- Metal
- 8K ultra HD
- 4K ultra HD
- 2160p
- HDMI
- HDCP 2.3
- Push-button
- Remote control
- HDR10
- HDR10+
- Dolby vision
- HLG
- EDID management
- ARC
- Female
- LPCM
- DTS
- HDMI 2.1
- HDMI 2.0
Specifications
ST-NMXC42A 8K HDMI 4x2 Matrix is a professional HDMI 2.1 matrix switch that connects up to four HDMI sources to two displays with support for 8K@60Hz, HDR, eARC, Dolby Vision and advanced audio de-embedding. The video resolution is up to 8K@60Hz 4:2:0. It supports eARC function (only for INPUTS 1 port and OUT 1 port). Built-in EDID DIP switch supports advanced EDID management. It also supports audio de-embedding function. As able to be used either as a splitter or a switcher, this multi-functional product can be widely applied in scenarios of demonstration, video conference, multimedia teaching and other occasions requiring for big-screen demonstration.
The ST-NMXC42A 8K HDMI 4x2 Matrix is ideal for conference rooms, AV installations, multimedia classrooms and digital signage applications.
The ST-NMXC42A 8K HDMI 4x2 Matrix is designed for professional AV distribution, commercial installations, conference rooms, digital signage, multimedia classrooms and home theatre applications. The ST-NMXC42A 8K HDMI 4x2 Matrix provides reliable 8K HDMI switching, HDR support, eARC functionality, advanced EDID management and high-performance audio de-embedding for demanding AV environments.
ST-NMXC42A 8K HDMI 4x2 Matrix Features
☆ HDMI 2.1 and HDCP 2.3 compliant
☆ Support 40Gbps video bandwidth
☆ Support video resolution up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4 10bit, 4K@120Hz 4:4:4 10bit
☆ VRR, FVA, ALLM supported
☆ Support HDR, HDR10, HDR10+, Dolby Vision, HLG pass through
☆ Support HDMI audio formats: LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
☆ INPUTS 1 port and OUT 1 port support eARC/ARC function
☆ Allows HD audio up to Dolby Atmos, DTS:X over TrueHD from ANY external HDMI source to any eARC/ARC sound system
☆ Support audio de-embedding function (output through the optical and analog port)
☆ Built-in EDID DIP switch supports advanced EDID management
☆ 8K→4K, 8K/4K→2K downscaler support
☆ Support IR remote control and front panel button switching
☆ Built-in Equalizer, Retiming and Driver
☆ Compact design for easy and flexible installation
ST-NMXC42A 8K HDMI 4x2 Matrix Package Contents
① 1× 8K HDMI 4x2 Matrix
② 1× IR Remote
③ 1× 5V/2A Multinational Power Supply
④ 1× User Manual
ST-NMXC42A 8K HDMI 4x2 Matrix Specifications
| Parameter | Description |
|---|---|
| Video | |
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 40 Gbps |
| Video Resolution | Up to 8K@60Hz 4:2:0 10-bit, 8K@30Hz 4:4:4 10-bit, 4K@120Hz 4:4:4 10-bit |
| Color Space | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| HDR Support | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| Gaming Features | VRR, FVA, ALLM supported |
| Audio | |
| HDMI Audio Formats | LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| Optical Audio Output | Up to LPCM / Dolby / DTS 5.1 CH |
| Analog Audio Output | LPCM 2.0 CH |
| eARC / ARC | Supported on INPUTS 1 port and OUT 1 port |
| Connection | |
| Inputs | 4× HDMI IN (Type A, 19-pin female) |
| Outputs | 2× HDMI OUT (Type A, 19-pin female), 1× Optical (S/PDIF), 1× L/R (3.5mm Stereo Mini-jack) |
| Control | 1× SERVICE (Micro USB, firmware update port) |
| Recommended HDMI Cable Length | |
| 8K | Up to 3 m / 10 ft — Ultra High Speed HDMI 2.1 cable required |
| 4K@60Hz | Up to 8 m / 26 ft — HDMI 2.0 cable required |
| 4K@24Hz | Up to 12 m / 39 ft — HDMI 1.4 cable required |
| 1080P | Up to 15 m / 49 ft — HDMI 1.4 cable required |
| Protection | |
| ESD Protection | ±8 kV (Air-gap discharge), ±4 kV (Contact discharge) — Human body model |
| Physical | |
| Housing | Metal Enclosure — Black |
| Dimensions | 200 × 85 × 21 mm (W × D × H) |
| Weight | 411 g |
| Power | |
| Power Supply | Input: AC 100–240V 50/60Hz; Output: DC 5V/2A (US/EU standards, CE/FCC/UL certified) |
| Power Consumption | 2.05 W (Max) |
| Environment | |
| 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) |
ST-NMXC42A 8K HDMI 4x2 Matrix Operation Controls and Functions
| No. | Name | Function Description |
|---|---|---|
| 1 | IR Window | IR input signal receiving window. |
| 2 | POWER LED | Green: device is working normally. Red: device is in standby mode. |
| 3 | OUT 1 LED (1~4) | When INPUTS 1/2/3/4 is selected as the signal source for OUT 1, the corresponding green LED 1/2/3/4 will be on. |
| 4 | OUT 2 LED (1~4) | When INPUTS 1/2/3/4 is selected as the signal source for OUT 2, the corresponding green LED 1/2/3/4 will be on. |
| 5 | eARC LED | The eARC LED will be on when the eARC function is turned on. |
| 6 | eARC Button | Press to turn on/off the eARC function. |
| 7 | OUT 1~2 Button | Used to select the signal source for OUT 1/2. Press OUT 1/2 button to switch any of the four HDMI input signals to the corresponding output port. |
| 8 | CONFIG DIP Switch | Sets the working mode (x = 1 or 0): 1xx — Matrix mode 0xx — Splitter mode x11 — OUT 2 pass-through mode x10 — OUT 2 scaler mode (8K→4K) x01 — OUT 2 scaler mode (8K/4K→1080P) x00 — OUT 2 pass-through mode |
| 9 | EDID DIP Switch | Sets EDID mode: 111 — Copy OUT 1 port sink EDID (factory default) 110 — HDMI 1080p@60Hz, Audio 2ch PCM 101 — HDMI 4K@60Hz 4:4:4, Audio 2ch PCM 100 — HDMI 4K@60Hz 4:4:4, Audio 5.1ch PCM/DTS/Dolby 011 — HDMI 4K@60Hz 4:4:4, Audio 7.1ch PCM/DTS/Dolby/HD 010 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 2ch PCM 001 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 5.1ch PCM/DTS/Dolby 000 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 7.1ch PCM/DTS/Dolby/HD |
| 10 | SERVICE | Micro USB firmware update and debug port. |
| 11 | OUT (1~2) Port | HDMI output ports. Connect to HDMI display devices (e.g. TV, monitor) with HDMI cables. Note: When eARC is OFF, OUT 1 works as a standard output. When eARC is ON, connect OUT 1 (eARC) to an HDMI TV with eARC function. |
| 12 | INPUTS (1~4) Port | HDMI input ports. Connect to HDMI source devices (e.g. DVD, PS5) with HDMI cables. Note: When eARC is OFF, INPUTS 1 works as a standard input. When eARC is ON, connect INPUTS 1 (eARC) to a soundbar to output the audio signal returned from OUT 1 (eARC). |
| 13 | OPTICAL | Optical fiber audio output port (S/PDIF). Note: Muted when eARC function is turned on. |
| 14 | L/R | 3.5mm analog stereo audio output port. Note: Muted when eARC function is turned on. |
| 15 | DC 5V | DC 5V/2A power input port. |
ST-NMXC42A 8K HDMI 4x2 Matrix IR Remote
| Button | Function Description |
|---|---|
| ① Power | Power on the device or set it to standby mode. |
| ② eARC | Press to turn on/off eARC function. When eARC is turned on, the eARC LED on the front panel will illuminate. |
| ③ OUT A / OUT B — 1/2/3/4 | Press 1, 2, 3 or 4 directly to select the relevant input source for OUT 1 / OUT 2 display. Or press ◄/► to select the previous or next input source. |
ST-NMXC42A 8K HDMI 4x2 Matrix Application Example
Situation 1: When the eARC function is turned off, the connection diagram is as following.
Situation 2: When the eARC function is turned on, connect the "INPUTS 1 (eARC)" port to a Soundbar to output the audio signal returned from the "OUT 1 (eARC)" port, the INPUTS 1 LED for OUT 1 lights on, the connection diagram is as following.
Note:
(1) If the HDTV supports eARC/ARC function, the Soundbar will receive the audio signal returned from the HDTV, and then emit the sound; otherwise it will not emit sound.
(2) If the HDTV supports eARC/ARC function, but the Soundbar only supports ARC function, please turn off the eARC function of the HDTV.
ST-NMXC42A 8K HDMI 4x2 Matrix is a professional HDMI 2.1 matrix switch that connects up to four HDMI sources to two displays with support for 8K@60Hz, HDR, eARC, Dolby Vision and advanced audio de-embedding. The video resolution is up to 8K@60Hz 4:2:0. It supports eARC function (only for INPUTS 1 port and OUT 1 port). Built-in EDID DIP switch supports advanced EDID management. It also supports audio de-embedding function. As able to be used either as a splitter or a switcher, this multi-functional product can be widely applied in scenarios of demonstration, video conference, multimedia teaching and other occasions requiring for big-screen demonstration.
The ST-NMXC42A 8K HDMI 4x2 Matrix is ideal for conference rooms, AV installations, multimedia classrooms and digital signage applications.
The ST-NMXC42A 8K HDMI 4x2 Matrix is designed for professional AV distribution, commercial installations, conference rooms, digital signage, multimedia classrooms and home theatre applications. The ST-NMXC42A 8K HDMI 4x2 Matrix provides reliable 8K HDMI switching, HDR support, eARC functionality, advanced EDID management and high-performance audio de-embedding for demanding AV environments.
ST-NMXC42A 8K HDMI 4x2 Matrix Features
☆ HDMI 2.1 and HDCP 2.3 compliant
☆ Support 40Gbps video bandwidth
☆ Support video resolution up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4 10bit, 4K@120Hz 4:4:4 10bit
☆ VRR, FVA, ALLM supported
☆ Support HDR, HDR10, HDR10+, Dolby Vision, HLG pass through
☆ Support HDMI audio formats: LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
☆ INPUTS 1 port and OUT 1 port support eARC/ARC function
☆ Allows HD audio up to Dolby Atmos, DTS:X over TrueHD from ANY external HDMI source to any eARC/ARC sound system
☆ Support audio de-embedding function (output through the optical and analog port)
☆ Built-in EDID DIP switch supports advanced EDID management
☆ 8K→4K, 8K/4K→2K downscaler support
☆ Support IR remote control and front panel button switching
☆ Built-in Equalizer, Retiming and Driver
☆ Compact design for easy and flexible installation
ST-NMXC42A 8K HDMI 4x2 Matrix Package Contents
① 1× 8K HDMI 4x2 Matrix
② 1× IR Remote
③ 1× 5V/2A Multinational Power Supply
④ 1× User Manual
ST-NMXC42A 8K HDMI 4x2 Matrix Specifications
| Parameter | Description |
|---|---|
| Video | |
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 40 Gbps |
| Video Resolution | Up to 8K@60Hz 4:2:0 10-bit, 8K@30Hz 4:4:4 10-bit, 4K@120Hz 4:4:4 10-bit |
| Color Space | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| HDR Support | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| Gaming Features | VRR, FVA, ALLM supported |
| Audio | |
| HDMI Audio Formats | LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| Optical Audio Output | Up to LPCM / Dolby / DTS 5.1 CH |
| Analog Audio Output | LPCM 2.0 CH |
| eARC / ARC | Supported on INPUTS 1 port and OUT 1 port |
| Connection | |
| Inputs | 4× HDMI IN (Type A, 19-pin female) |
| Outputs | 2× HDMI OUT (Type A, 19-pin female), 1× Optical (S/PDIF), 1× L/R (3.5mm Stereo Mini-jack) |
| Control | 1× SERVICE (Micro USB, firmware update port) |
| Recommended HDMI Cable Length | |
| 8K | Up to 3 m / 10 ft — Ultra High Speed HDMI 2.1 cable required |
| 4K@60Hz | Up to 8 m / 26 ft — HDMI 2.0 cable required |
| 4K@24Hz | Up to 12 m / 39 ft — HDMI 1.4 cable required |
| 1080P | Up to 15 m / 49 ft — HDMI 1.4 cable required |
| Protection | |
| ESD Protection | ±8 kV (Air-gap discharge), ±4 kV (Contact discharge) — Human body model |
| Physical | |
| Housing | Metal Enclosure — Black |
| Dimensions | 200 × 85 × 21 mm (W × D × H) |
| Weight | 411 g |
| Power | |
| Power Supply | Input: AC 100–240V 50/60Hz; Output: DC 5V/2A (US/EU standards, CE/FCC/UL certified) |
| Power Consumption | 2.05 W (Max) |
| Environment | |
| 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) |
ST-NMXC42A 8K HDMI 4x2 Matrix Operation Controls and Functions
| No. | Name | Function Description |
|---|---|---|
| 1 | IR Window | IR input signal receiving window. |
| 2 | POWER LED | Green: device is working normally. Red: device is in standby mode. |
| 3 | OUT 1 LED (1~4) | When INPUTS 1/2/3/4 is selected as the signal source for OUT 1, the corresponding green LED 1/2/3/4 will be on. |
| 4 | OUT 2 LED (1~4) | When INPUTS 1/2/3/4 is selected as the signal source for OUT 2, the corresponding green LED 1/2/3/4 will be on. |
| 5 | eARC LED | The eARC LED will be on when the eARC function is turned on. |
| 6 | eARC Button | Press to turn on/off the eARC function. |
| 7 | OUT 1~2 Button | Used to select the signal source for OUT 1/2. Press OUT 1/2 button to switch any of the four HDMI input signals to the corresponding output port. |
| 8 | CONFIG DIP Switch | Sets the working mode (x = 1 or 0): 1xx — Matrix mode 0xx — Splitter mode x11 — OUT 2 pass-through mode x10 — OUT 2 scaler mode (8K→4K) x01 — OUT 2 scaler mode (8K/4K→1080P) x00 — OUT 2 pass-through mode |
| 9 | EDID DIP Switch | Sets EDID mode: 111 — Copy OUT 1 port sink EDID (factory default) 110 — HDMI 1080p@60Hz, Audio 2ch PCM 101 — HDMI 4K@60Hz 4:4:4, Audio 2ch PCM 100 — HDMI 4K@60Hz 4:4:4, Audio 5.1ch PCM/DTS/Dolby 011 — HDMI 4K@60Hz 4:4:4, Audio 7.1ch PCM/DTS/Dolby/HD 010 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 2ch PCM 001 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 5.1ch PCM/DTS/Dolby 000 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 7.1ch PCM/DTS/Dolby/HD |
| 10 | SERVICE | Micro USB firmware update and debug port. |
| 11 | OUT (1~2) Port | HDMI output ports. Connect to HDMI display devices (e.g. TV, monitor) with HDMI cables. Note: When eARC is OFF, OUT 1 works as a standard output. When eARC is ON, connect OUT 1 (eARC) to an HDMI TV with eARC function. |
| 12 | INPUTS (1~4) Port | HDMI input ports. Connect to HDMI source devices (e.g. DVD, PS5) with HDMI cables. Note: When eARC is OFF, INPUTS 1 works as a standard input. When eARC is ON, connect INPUTS 1 (eARC) to a soundbar to output the audio signal returned from OUT 1 (eARC). |
| 13 | OPTICAL | Optical fiber audio output port (S/PDIF). Note: Muted when eARC function is turned on. |
| 14 | L/R | 3.5mm analog stereo audio output port. Note: Muted when eARC function is turned on. |
| 15 | DC 5V | DC 5V/2A power input port. |
ST-NMXC42A 8K HDMI 4x2 Matrix IR Remote
| Button | Function Description |
|---|---|
| ① Power | Power on the device or set it to standby mode. |
| ② eARC | Press to turn on/off eARC function. When eARC is turned on, the eARC LED on the front panel will illuminate. |
| ③ OUT A / OUT B — 1/2/3/4 | Press 1, 2, 3 or 4 directly to select the relevant input source for OUT 1 / OUT 2 display. Or press ◄/► to select the previous or next input source. |
ST-NMXC42A 8K HDMI 4x2 Matrix Application Example
Situation 1: When the eARC function is turned off, the connection diagram is as following.
Situation 2: When the eARC function is turned on, connect the "INPUTS 1 (eARC)" port to a Soundbar to output the audio signal returned from the "OUT 1 (eARC)" port, the INPUTS 1 LED for OUT 1 lights on, the connection diagram is as following.
Note:
(1) If the HDTV supports eARC/ARC function, the Soundbar will receive the audio signal returned from the HDTV, and then emit the sound; otherwise it will not emit sound.
(2) If the HDTV supports eARC/ARC function, but the Soundbar only supports ARC function, please turn off the eARC function of the HDTV.
| Dimensions | 10 x 8 x 5 cm |
| Weight | 500g |
| Material | Premium aluminum alloy |
| Color | Black, Silver, Gold |
| Warranty | 2 years manufacturer warranty |