8K 1×4 HDMI 2.1 Splitter with Auto Downscaling

Name: 8K 1×4 HDMI 2.1 Splitter with Auto Downscaling
Brand: KanexPro
SKU: SP-HD1X48K

48Gbps, HDCP 2.3, HDR?SDR Converting, Dolby Atmos/DTS:X, EDID DIP

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KanexPro

SKU: SP-HD1X48K

UPC: 813982023604

$119.96 $149.95 Save 20%

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Split one 8K HDMI 2.1 source to four displays with automatic downscaling and HDR-to-SDR conversion — enabling mixed-resolution environments without manual configuration. The KanexPro SP-HD1X48K delivers 48Gbps bandwidth and supports resolutions up to 8K@60Hz 4:2:0 12-bit and 4K@120Hz 4:4:4 12-bit across all four outputs. Auto downscaling independently adjusts each output based on connected display capabilities.

HDMI 2.1 and HDCP 2.3 compliant. VRR, ALLM, QMS, QFT, SBTM supported. Full HDR pass-through (HDR10, HDR10+, Dolby Vision, HLG) with HDR→SDR auto converting per output. Audio: LPCM 7.1CH, Dolby TrueHD, Atmos, DTS-HD MA, DTS:X. 8-mode EDID DIP switch. Metal enclosure (145 × 68 × 17 mm, 263 g), 5.5W max, USB-C service port.

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	4 × HDMI OUT [Type A, 19-pin female]
Control	1 × SERVICE [USB Type-C, Update port]
Mechanical
Housing	Metal Enclosure
Color	Black
Dimensions	145mm (W) × 68mm (D) × 17mm (H)
Weight	263g
Power Supply	Input: AC 100–240V 50/60Hz, Output: DC 5V/2A (CE/FCC/UL certified)
Power Consumption	5.5W (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 1×4 Splitter, 1 × 5V/2A Multinational Power Supply, 1 × User Manual