Best for
Projects that need video processing, scaling, switching, or multi-input control for LED walls — control rooms, events, and larger commercial displays.
HDR Master 4K is an HDR video generator, image quality optimizer, and 4K video processor. It is capable of converting SDR video into HDR video output, allowing
for a more realistic and lifelike image. When the LED display doesn’t support HDR, it can provide an overall improvement to image quality using “Image
Enhancement” functionality.
Support for conversion of SDR video source into HDR, providing a more vivid and stunning visual experience. Can provide a full-link HDR solution by pairing
a MCTRL 4K and A8s receiving card. The output load can up to 8K by splicing 4 devices.
Automatic image noise correction, allowing for a more beautiful
image. All-new Black Level adjustment, providing more detail in
dark parts of the image. Flexible adjustment for Contrast Gain and
Low Grayscale Gain, avoiding overexposure in bright areas and
grayscale loss in low brightness.
When the LED display doesn’t support HDR, brightness and color gamut can also be optimized using “Image Enhancement” functionality, allowing any screen to easily achieve an HDR-like display effects.
Can easily convert between SDR, HDR10, and HLG signals,
allowing for easy signal manage- ment. 12G-SDI, 3G-SDI, and
HDMI 2.0 ports can also be freely converted, allowing for
integration with a variety of equipment.
● 1 pluggable input card
○ 1 × DP 1.2, 1 × HDMI 2.0 and 4 × 12G-SDI
● 3G-SDI input mosaic
● Up to six 4K×2K@60Hz video inputs simultaneously
● 2 pluggable output cards that output the same content synchronously
○ One with 1 × HDMI 2.0 and 4 × 10G optical fiber ports
○ The other one with 1 × HDMI 2.0 and 4 × 12G-SDI output connectors
○ 3G-SDI output mosaic
● SDR to HDR10 conversion

Input Card | |||
Connector | Qty | Standard | Description |
HDMI 2.0 | 1 | HDMI 2.0 Backwards compatible with HDMI 1.4 and HDMI 1.3 | ● Up to 4K×2K@60Hz or 8K×1K@60Hz input resolution |
DP 1.2 | 1 | DP 1.2 Backwards compatible with DP 1.1 | ● Up to 4K×2K@60Hz or 8K×1K@60Hz input resolution |
12G-SDI | 4 | 12G-SDI Backwards compatible with 6G-SDI, 3G-SDI,HD-SDI and SD-SDI | ● Supports ST-2082-1 (12G), ST-2081-1 (6G), ST-424 (3G), ST-292 (HD) and SMPTE 259 (SD). |
Output Card | |||
1×HDMI2.0+4×Fiber Output Card | |||
Connector | Qty | Standard | Description |
HDMI 2.0 | 1 | HDMI 2.0 Backwards compatible with HDMI 1.4 and HDMI 1.3 | ● HDR10 supported |
10G optical fiber port | 4 | 10G | ● OPT 1 and OPT 2 copy the output on HDMI 2.0. |
4×12G SDI+1×HDMI2.0 Process Card | |||
Connector | Qty | Standard | Description |
HDMI 2.0 | 1 | HDMI 2.0 HDMI 1.4 and HDMI 1.3 compatible | ● HDR10 supported |
12G-SDI | 4 | 12G-SDI 6G-SDI, 3G-SDI, HD- SDI and SD-SDI compatible | ● Up to 4K×2K@60Hz output resolution on each connector |
Control Card | |||
ETHERNET | Gigabit Ethernet port Connect to the control PC. | ||
USB | 2 × USB 2.0 (Type-A) | ||
CONTROL UI | Reserved | ||
GENLOCK | Connect to a sync source. | ||
MEGRA guidance
Short buyer notes from MEGRA (MTV Digital Technology Sdn Bhd, Port Klang). Specs above stay as published. Use this section only to decide fit and next step.
Projects that need video processing, scaling, switching, or multi-input control for LED walls — control rooms, events, and larger commercial displays.
Choose HDR Master 4K when the job is more than simple send/play: inputs, layers, or higher-end processing sit in the processor class.
Video sources on the input side and Novastar sending / receiving path on the LED side. System design should follow the I/O list in the specs above.
MEGRA supplies Novastar products in Malaysia. Not an official Novastar website. No price on this page — ask us for project advice.