8K 1×2 HDMI 2.1 Splitter with Auto Downscaling
48Gbps, HDCP 2.3, HDR?SDR Converting, Dolby Atmos/DTS:X, EDID DIP
Split one 8K HDMI 2.1 source to two displays with automatic downscaling and HDR-to-SDR conversion — enabling mixed-resolution environments without manual configuration. The KanexPro SP-HD1X28K delivers 48Gbps bandwidth and supports resolutions up to 8K@60Hz 4:2:0 12-bit and 4K@120Hz 4:4:4 12-bit. Its auto downscaling independently adjusts each output (8K→4K or 8K/4K→1080p) based on connected display capabilities, while HDR-to-SDR conversion ensures compatibility with legacy SDR displays.
HDMI 2.1 and HDCP 2.3 compliant. Supports VRR, ALLM, QMS, QFT, and SBTM. Full HDR pass-through (HDR10, HDR10+, Dolby Vision, HLG). Audio includes LPCM 7.1CH, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio, and DTS:X. 8-mode EDID DIP switch for deterministic resolution control. Metal enclosure (95 × 68 × 18 mm, 177 g), 4.3W max, with USB-C service port for firmware updates.
- HDCP 2.3 compliant
- Support 48Gbps FRL and 18Gbps TMDS video bandwidth
- Support video resolution up to 8K@60Hz 4:2:0 12bit, 4K@120Hz 4:4:4 12bit, as specified in HDMI 2.1
- HDMI 2.1 protocols: VRR, ALLM, QMS, QFT, SBTM are supported
- Support HDR, HDR 10, HDR 10+, Dolby Vision, HLG pass-through
- LPCM 7.1CH, Dolby TrueHD, Atmos and DTS-HD Master, DTS:X Audio pass-through
- 8K to 4K or 8K/4K to 1080P auto downscaling on all outputs
- HDR to SDR auto converting on all outputs
- Advanced EDID management
- Compact design for easy and flexible installation
| Technical | |
|---|---|
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 48Gbps FRL and 18Gbps TMDS |
| Video Resolution | Up to 8K@60Hz 4:2:0 12bit, 4K@120Hz 4:4:4 12bit |
| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| HDR | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| 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 |
| ESD Protection | IEC 61000-4-2: ±8kV (air-gap) & ±4kV (contact) |
| Connection | |
| Input | 1 × HDMI IN [Type A, 19-pin female] |
| Output | 2 × HDMI OUT [Type A, 19-pin female] |
| Control | 1 × SERVICE [USB Type-C, Update port] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | 95mm (W) × 68mm (D) × 18mm (H) |
| Weight | 177g |
| Power Supply | Input: AC 100–240V 50/60Hz, Output: DC 5V/2A (CE/FCC/UL certified) |
| Power Consumption | 4.3W (Max) |
| 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) |
| Package Contents | |
| Included | 1 × 48Gbps 1×2 Splitter, 1 × 5V/2A Multinational Power Supply, 1 × User Manual |
What HDMI and HDCP versions?
Maximum resolution?
What are the EDID DIP switch settings?
What power supply is included?
No signal on one or both outputs.
Downscaling not working.
Does this extract audio?
How does auto downscaling work?
Does HDR-to-SDR conversion affect the HDR output?
What is the SERVICE port?
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