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4K60 1×2 HDMI Splitter with Auto Downscaling & EDID Control

No Blank Second Screen on Mixed-Resolution Displays - 18Gbps, HDCP 2.3, HDR10+/Dolby Vision Pass-Through

SP-HDMI1X2-18GUPC 813982022898
4K60 1×2 HDMI Splitter with Auto Downscaling & EDID Control – KanexPro SP-HDMI1X2-18G
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Overview

Sends one 4K60 HDR source to two displays at once and keeps the lower-resolution screen live instead of blanking it. The SP-HDMI1X2-18G is a passive 1×2 HDMI splitter in a black metal enclosure, powered by a single 5V/1A multinational supply and drawing 1.41W, sized to stack behind a display or tuck into a small credenza rack. It is the right choice for media rooms and huddle spaces where reliable HDCP, HDR pass-through and a second screen that never goes dark matter more than audio de-embedding or 8K headroom.

Full 18Gbps HDMI 2.0b bandwidth carries 4K60 4:4:4 with HDR, HDR10, HDR10+, Dolby Vision and HLG intact, while HDCP 2.3 and 1.4 compliance clears protected sources to both outputs. Per-output auto downscaling matches each display's capability independently, so a 4K panel and a 1080p projector run from the same source without a separate scaler, and front-panel EDID control adds STD (forced 1080p) and TV (copy OUT1) modes for stubborn sinks. The differentiator is the combination — full-bandwidth HDR pass-through with automatic per-output downscaling in a supported metal-body unit, not the feature-max audio-breakout tier.

Key features
  • HDCP 2.3/1.4 and DVI 1.0 compliant
  • Supports 18Gbps video bandwidth, as specified in HDMI 2.0b
  • Supports video resolution up to 4K2K@60Hz 4:4:4 and the HDMI 3D audio format
  • Supports PCM, Dolby TrueHD and DTS-HD Master Audio up to 7.1CH
  • Supports auto downscaling
  • Supports CEC by-pass from IN to OUT1
  • Supports HDR, HDR10, HDR10+, Dolby Vision and HLG
  • Supports EDID control, including STD (1080p) mode and TV (copy OUT1) mode
Video
Video Bandwidth18Gbps
Video ResolutionUp to 4K2K@60Hz 4:4:4
HDMI ComplianceHDMI 2.0b
HDCP ComplianceHDCP 2.3 / 1.4
DVI ComplianceDVI 1.0
HDRHDR, HDR10, HDR10+, Dolby Vision, HLG
Color SpaceRGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0
Color Depth8 / 10 / 12-bit
Audio
Audio FormatsLPCM 2.0 / 5.1 / 7.1CH, Dolby Digital, Dolby Digital Plus, DTS, Dolby TrueHD, DTS-HD Master
Sample Rate44.1, 48, 88.2, 96, 176.4, 192 KHz
Connections
Input1 × HDMI [Type A, 19-pin female]
Output2 × HDMI [Type A, 19-pin female]
Recommended HDMI Cable Length (IN / OUT)
4K605 m / 16 ft
4K3010 m / 33 ft
1080p15 m / 49 ft
Power
Power Supply5V/1A (multinational power supply)
Power Consumption1.41W (max.)
Protection
ESD ProtectionIEC 61000-4-2: ±8kV (air-gap discharge), ±4kV (contact discharge)
Environmental
Operating Temperature32°F ~ 104°F (0°C ~ 40°C)
Storage Temperature-4°F ~ 140°F (-20°C ~ 60°C)
Relative Humidity20 ~ 90% RH (non-condensing)
Physical
HousingMetal enclosure, black
Dimensions (unit)2.76 × 2.36 × 0.81 in (70 × 60 × 20.5 mm)
Weight (unit, net)0.26 lbs (118 g)
Package Dimensions4.61 × 4.13 × 2.56 in (117 × 105 × 65 mm)
CertificationsCE, FCC, RoHS
Package Contents
1 ×18Gbps HDMI 1×2 Splitter
1 ×5V/1A multinational power supply
4K60 1×2 HDMI Splitter with Auto Downscaling & EDID Control panel drawing
4K60 1×2 HDMI Splitter with Auto Downscaling & EDID Control system diagram
4K60 1×2 HDMI Splitter with Auto Downscaling & EDID Control applications
What video resolution and bandwidth does the SP-HDMI1X2-18G support?
It supports up to 4K2K@60Hz 4:4:4 with 18Gbps of video bandwidth, conforming to HDMI 2.0b.
Which HDCP versions does the SP-HDMI1X2-18G comply with?
It is compliant with HDCP 2.3 and HDCP 1.4, and with DVI 1.0.
Does the SP-HDMI1X2-18G pass CEC commands?
Yes, it supports CEC by-pass from the INPUT to OUTPUT 1.
What does a typical SP-HDMI1X2-18G setup connect?
A single source such as a DVD or Blu-ray player feeds the INPUT, and each OUTPUT drives a UHDTV, so one source shows on two UHD displays at once.
How do I power the SP-HDMI1X2-18G?
Connect the supplied DC 5V/1A multinational power supply to the POWER port on the front panel; the unit draws 1.41W at most.
What plugs into which port on the SP-HDMI1X2-18G?
Connect your HDMI source, such as a Blu-ray player or set-top box, to the front INPUT port, and connect your two displays to OUTPUT 1 and OUTPUT 2 on the rear panel.
Neither of my displays shows a picture on the SP-HDMI1X2-18G. What should I check?
Confirm the front INPUT LED is lit red, which means an active source is connected; if it is off, check that the source is powered and its HDMI cable is seated. Then confirm each OUTPUT LED is red, meaning a display is detected, and verify your cables are within the recommended length for the resolut
One display on the SP-HDMI1X2-18G is blank or shows the wrong resolution while the other is fine. What is happening?
Each output auto-downscales to what its display can accept, so a lower-capability display receives a reduced resolution regardless of EDID mode. Check that the blank display's HDMI cable is within the length limit for the resolution and that the display is detected by its OUTPUT LED lighting red.
Why choose this over a budget marketplace splitter?
The build and the handshake. This is a metal-enclosure unit built to the full 18Gbps HDMI 2.0b ceiling, with HDCP 2.3/1.4 compliance and HDR10+ and Dolby Vision pass-through. Commodity plastic splitters often list the same specs but are the parts integrators go back to replace after HDCP dropouts, a
My two displays are different resolutions - will the 1080p one still work?
Yes. The unit auto-downscales, so a 4K60 source shows 4K on the 4K display and downscaled 1080p on the 1080p display or projector at the same time. It also has EDID control with an STD mode that forces 1080p and a TV mode that copies the primary output's EDID, so you have a manual fallback if a stub
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