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Black rectangular box with four HDMI inputs and two HDMI outputs plus optical and 3.5mm audio ports

BZBGEAR

BZBGEAR BG-8K-42MA 4x2 8K HDMI 2.1 Matrix Switcher

SKU CH-PTES-SY7KN

Four-input, two-output 8K HDMI 2.1 matrix switcher with 40 Gbps bandwidth, automatic downscaling and audio de-embedding to optical and analogue outputs

  • SoundHDMI input/output: LPCM, Dolby Digital/Plus/EX, Dolby True H
  • Input ports4 x HDMI IN [Type A, 19-pin female]
  • Output ports2 x HDMI OUT [Type A, 19-pin female] 1 x OPTICAL [S/PDIF] 1
  • Maximum supported resolutionsUp to 8K @ 60 Hz 4:2:0 10bit, 8K @ 30 Hz 4:4:4 10bit, 4K @ 1
  • Bandwidth rating40 Gbit/s
  • Product typeHDMI Switchers
  • Routes four HDMI sources to two displays with independent switching
  • 40 Gbps bandwidth carries 8K at 60 Hz and 4K at 120 Hz without compression
  • Automatic downscaling converts 8K or 4K signals to 2K for legacy screens
  • Audio de-embedding sends 5.1-channel sound to optical and stereo to 3.5 mm jack
  • HDCP 2.3 compliance protects premium content across all connected devices

4x2 8K HDMI 2.1 Matrix Switcher

The BZBGEAR BG-8K-42MA routes four HDMI sources to two displays with independent switching. It handles 8K at 60 Hz 4:2:0 10-bit, 8K at 30 Hz 4:4:4 10-bit and 4K at 120 Hz 4:4:4 10-bit. The unit supports HDMI 2.1 and HDCP 2.3 for protected content. It suits installers and enthusiasts managing multiple 8K or high-refresh 4K sources.

40 Gbps bandwidth with auto downscaling

The switch provides 40 Gbps bandwidth across every path. Automatic downscaling converts 8K to 4K or 2K and 4K to 2K per output so mixed-resolution displays work together. Each output can show a different source at its native or downscaled resolution without manual reconfiguration.

HDMI audio de-embedding to optical and analog

Audio extracts from the HDMI stream to one optical S/PDIF port and one 3.5 mm stereo jack. The optical output carries up to LPCM, Dolby or DTS 5.1 channels while the analog jack delivers LPCM 2-channel sound. This lets the matrix feed a soundbar, AV receiver or powered speakers directly while the displays receive video only.

How it compares

Measured against everything we stock in HDMI & AV Selector Switches, at today’s prices. Recalculated every night.

Price $404.99
Pricier than about 90% of the 1,998 comparable items (median $27.99).

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Specifications

Product
Product typeHDMI Switchers
Performance
Bandwidth rating40 Gbit/s
Display
Maximum supported resolutionsUp to 8K @ 60 Hz 4:2:0 10bit, 8K @ 30 Hz 4:4:4 10bit, 4K @ 120 Hz 4:4:4 10bit
Audio & video
Matrix switchingYes
SoundHDMI input/output:
LPCM, Dolby Digital/Plus/EX, Dolby True HD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
Auido de-embedding output:
Optical: Up to LPCM/Dolby/DTS 5.1 CH
Analog: LPCM 2.0 CH
Ports & slots
Input ports4 x HDMI IN [Type A, 19-pin female]
Output ports2 x HDMI OUT [Type A, 19-pin female]
1 x OPTICAL [S/PDIF]
1 x L/R [3.5 mm Stereo Mini-jack]

Questions about this item

What does 8K60 actually deliver on a connected display?

The switch passes up to 8K at 60 Hz with 4:2:0 chroma and 10-bit colour, or 8K at 30 Hz with full 4:4:4 10-bit sampling.

How does the HDMI 2.1 interface limit the signal in practice?

The 40 Gbps bandwidth carries 8K60 4:2:0, 8K30 4:4:4 or 4K120 4:4:4, all at 10-bit depth with HDR and VRR support.

What physical connections and space are needed to install the unit?

Four HDMI inputs and two HDMI outputs use standard Type A 19-pin ports; audio de-embedding adds one optical S/PDIF and one 3.5 mm stereo jack in a compact chassis.

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