Monoprice

Monoprice 136741 Blackbird 4K HDMI Splitter Downscaling

5.0 (1 reviews)
4K1080p

Split one 4K@60Hz HDMI source to two displays with downscaling and audio extraction built right in.

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Overview

The Monoprice Blackbird 4K 1x2 HDMI Splitter (Model 136741) takes a single HDMI source and distributes it to two displays simultaneously, supporting resolutions up to 4K@60Hz with full 4:4:4 chroma subsampling via its HDMI 2.0b compliance. What distinguishes this splitter from more basic models is its built-in downscaling capability — it can output native 4K to one display while sending a downscaled 1080p signal to the other, making it ideal for setups where your displays don't share the same resolution capabilities.

Audio extraction adds another layer of versatility, with both digital optical and stereo analog outputs allowing you to route sound to an external audio system independently of your displays. The EDID auto and copy functions help ensure reliable handshaking between the source device and connected displays, reducing the black-screen issues that can plague less capable splitters. Full HDCP 2.2 compliance means protected content from streaming devices, gaming consoles, and Blu-ray players passes through without problems. For home theater setups, conference rooms, or digital signage where you need a dependable one-to-two split with modern format support, this Blackbird unit delivers the features that matter.

Key Features

Supports video resolutions up to 4K@60Hz (4: 4: 4)

Complies with the HDMI 2.0B and HDCP 2.2 standards

Can downscale 4K video to 1080p

Supports EDID Auto and copy functions

Supports multichannel audio streams. Can extract HDMI audio to digital optical and stereo analog outputs

Specifications

HDMI Compliance
HDMI 2.0b
HDCP Compliance
HDCP 2.2
Input / Output
1 In / 2 Out
Max Video Resolution
4K@60Hz (4:4:4)
Downscaling
4K to 1080p
Audio Output
Digital Optical (TOSLINK), Stereo Analog
EDID Management
Auto and Copy Functions
Brand
Monoprice
Model
136741

Pros & Cons

👍 Pros

  • Supports full 4K@60Hz at 4:4:4 chroma for sharp, color-accurate output
  • Built-in 4K to 1080p downscaling allows mixed-resolution display setups
  • Audio extraction via optical and analog outputs adds routing flexibility
  • HDCP 2.2 compliance passes protected content without issues
  • EDID management with auto and copy modes prevents common handshake problems

👎 Cons

  • Limited to 1-in, 2-out — not suitable if you need more than two displays
  • Does not extend HDMI signal over long cable runs beyond standard HDMI limits
  • Adds another power adapter to your setup
  • Only splits the signal — cannot switch between multiple input sources
  • No support for HDMI 2.1 features like 4K@120Hz or VRR

Frequently Asked Questions

Yes, the Blackbird 136741 supports 4K to 1080p downscaling, so you can output native 4K on one display and a downscaled 1080p signal on the other at the same time.
Yes, it is HDCP 2.2 compliant, so it can pass through protected content from streaming devices, Blu-ray players, and cable boxes.
It can extract audio via both digital optical (TOSLINK) and stereo analog outputs, letting you route audio to a soundbar or receiver independent of the displays.
The EDID copy function reads a connected display's identification data and presents it to the source device, which helps resolve handshake issues and ensures the source outputs the correct resolution.
Yes, HDMI splitters that support 4K@60Hz and signal processing features like downscaling require an external power source, which is included with the unit.