JSAUX Steam Deck Dock 4K@120Hz HDMI 2.1 USB Ethernet

The JSAUX Upgraded 6-in-1 Docking Station delivers 4K@120Hz HDMI 2.1 video, 100W power delivery, three USB 3.0 ports and gigabit Ethernet for handheld gaming consoles.

Designed for modern handheld gaming, this compact dock connects Steam Deck (LCD/OLED), ROG Ally X, Legion Go/Go S and MSI Claw to large displays and wired networks while providing fast charging and multiple USB peripherals. It replaces juggling cables with a single hub that prioritizes low latency and higher refresh rates for smoother visuals on compatible monitors and TVs.

How does the dock improve display performance?

This updated model steps up from 4K@60Hz to HDMI 2.1 4K@120Hz, allowing compatible displays and consoles to run at twice the refresh rate for reduced motion blur and smoother frame pacing. It’s optimized for fast-action gaming and cinematic playback when paired with capable hardware.

• HDMI 2.1 output supporting up to 4K at 120Hz
• Better frame consistency for fast-motion scenes
• Works with monitors/TVs that accept HDMI 2.1 input

Can it power my handheld while gaming?

Yes — the dock supports full-speed Power Delivery up to 100W, which keeps most handhelds charged even under high-performance modes. For devices with specific turbo draw profiles (for example ROG Ally’s turbo states), the dock supports those modes but pairing with a 100W charger is recommended for headroom.

• 100W PD passthrough for sustained gaming power
• Compatible with Turbo Mode on supported devices
• Reduces interruptions from battery drain during long sessions

Will this reduce network lag for online play?

The built-in Gigabit Ethernet port provides a stable, low-latency wired connection compared with Wi‑Fi, which is beneficial for competitive multiplayer and large downloads. It delivers faster and more reliable throughput for updates, cloud saves and streaming content.

• 1 Gbps Ethernet for stable online sessions
• Improved download and upload speeds over Wi‑Fi
• Ideal for multiplayer gaming and large file transfers

Which consoles and accessories are compatible?

This dock is engineered to support Steam Deck (LCD and OLED), ROG Ally and ROG Ally X, Legion Go/Go S, and MSI Claw handhelds, plus standard USB peripherals. Note that it is not compatible with ROG XBOX Ally / XBOX Ally X variants.

• Steam Deck LCD & OLED models supported
• Works with ROG Ally and ROG Ally X devices
• Compatible with Legion Go / Go S and MSI Claw

Who is this for: Gamers who want a simple, powerful dock to connect their handheld to a big screen, wired internet and multiple USB accessories without compromise. It’s ideal for competitive players seeking lower latency, streamers who need stable connections and anyone wanting higher refresh-rate output and reliable charging while playing long sessions.