8K HDMI 2.1 Switch 5 in 1 Out - 4K 120Hz Splitter Switcher

In this review of the BolAAzuL H2151 HDMI switch, the conclusion is simple: it targets gamers and media setups that need to connect multiple high-bandwidth HDMI sources to a single display while preserving high refresh rates and advanced HDR formats. The H2151 supports up to 4K@120Hz and handles 8K@60Hz, making it a good fit for consoles like Xbox Series X and PS5 or high-end GPUs, but mixed reports about intermittent flicker and remote reliability mean users who need absolute plug-and-play stability should test it carefully.

Key Features

• Five HDMI inputs: Lets users connect up to five HDMI 2.1 sources to one display, reducing cable swapping for consoles and media players.
• High refresh support: Handles 4K@120Hz and 2K@144Hz so fast action games and high frame rate PC output remain smooth on compatible displays.
• 8K compatibility: Designed to pass 8K@60Hz signals where source and display support the format, future-proofing some setups.
• Advanced HDR and audio: Supports HDR10, HDR10+ and Dolby Vision plus CEC for basic remote control passthrough with compatible equipment.
• 48Gbps bandwidth: The high video bandwidth preserves color depth and resolution on demanding signals when all connected devices and cables support it.
• Multiple control methods: Includes a physical button, an IR remote and auto-switching so users can change sources in different ways depending on their setup.

Who It's For

The H2151 is aimed at console owners and PC gamers who juggle multiple HDMI 2.1-capable devices and want to feed a single high-refresh display without manually swapping cables. It is also useful in living room AV setups where modern HDR formats and high frame rates are required.

People who require rock-solid, unbroken signal in professional streaming or mission-critical video walls should look elsewhere or plan to test for stability; some users report occasional green flicker and intermittent remote failure, so reliability-sensitive buyers may prefer higher-end distribution gear.

Pros & Cons

Pros

• Supports 4K@120Hz and 8K@60Hz for next-gen consoles and GPUs, delivering high frame rates and future-proofing.
• Five HDMI inputs reduce cable swapping and simplify multi-device setups for living rooms and game stations.
• Wide format support including HDR10, HDR10+ and Dolby Vision preserves image quality when sources and displays are compatible.
• Multiple input selection methods (remote, button, auto) add flexibility for different user preferences.

Cons

• Some customers report occasional flickering or green flashes and limited remote longevity, so expect to validate performance with your specific equipment.

Specifications

Model	H2151 HDMI 2.1 Switch
Inputs	5 x HDMI 2.1
Output	1 x HDMI
Max Resolutions	8K@60Hz, 4K@120Hz, 2K@144Hz
HDR & Audio	HDR10, HDR10+, Dolby Vision, CEC
Bandwidth	Up to 48Gbps
Control	IR remote, physical switch, Auto-Switching

Our Verdict

The H2151 is a compelling budget-conscious HDMI 2.1 switch for gamers and home AV users who need multiple HDMI 2.1 inputs with support for 4K@120Hz and 8K capability. It delivers strong feature value, but buyers should verify stability in their own systems due to mixed reports about flicker and remote durability; for most home users this is a practical and affordable way to centralize next-gen sources.

Frequently Asked Questions

Will this work with Xbox Series X and PS5?
Yes. The switch supports HDMI 2.1 features used by both consoles, including 4K@120Hz where the display also supports it.

Does it support Dolby Vision and HDR10+
Yes. The unit supports HDR10, HDR10+ and Dolby Vision formats when the source and display also support those formats.

How do you switch inputs?
You can use the included IR remote, the physical button on the unit, or rely on Auto-Switching depending on the connected devices.