---
product_id: 776995648
title: "Fancyleds HDMI 2.1 Fancy Sync Box Syncing Device; 4K 120Hz, HDR (for 24\" to 55\" TVs)"
brand: "fancy leds"
price: "€ 584.40"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fancy Le Ds"
url: https://www.desertcart.at/products/776995648-fancyleds-hdmi-2-1-fancy-sync-box-syncing-device-4k
store_origin: AT
region: Austria
---

# Ultra-low latency sync RGBW LEDs for vivid color 4K 120Hz HDR & VRR Fancyleds HDMI 2.1 Fancy Sync Box Syncing Device; 4K 120Hz, HDR (for 24" to 55" TVs)

**Brand:** fancy leds
**Price:** € 584.40
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your screen’s vibe with next-level sync magic! ✨

## Quick Answers

- **What is this?** Fancyleds HDMI 2.1 Fancy Sync Box Syncing Device; 4K 120Hz, HDR (for 24" to 55" TVs) by fancy leds
- **How much does it cost?** € 584.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/776995648-fancyleds-hdmi-2-1-fancy-sync-box-syncing-device-4k)

## Best For

- fancy leds enthusiasts

## Why This Product

- Trusted fancy leds brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **True-to-Life Colors:** RGBW LED strips with dedicated white diodes deliver stunningly accurate and rich color matching directly from HDMI data.
- • **Next-Gen Visual Sync:** Experience flawless 4K 120Hz HDR and Dolby Vision with HDMI 2.1 tech for ultra-smooth, vibrant content.
- • **Lightning-Fast Response:** Zero lag between your screen and ambient LEDs keeps you fully immersed in every frame and game moment.
- • **Universal Compatibility:** Works seamlessly with most HDMI devices and includes a universal power adaptor for global use—plug and play anywhere.
- • **Seamless Streaming Experience:** HDCP 2.3 compliance guarantees uninterrupted 4K/8K streaming without black screens or copyright hassles.

## Overview

The Fancyleds HDMI 2.1 Fancy Sync Box is a cutting-edge ambient lighting device designed for 24" to 55" TVs, delivering ultra-smooth 4K 120Hz HDR and Dolby Vision syncing. It uses direct HDMI data for lightning-fast, accurate RGBW LED color matching without the need for cameras. Compatible with a wide range of HDMI devices and equipped with a universal power adaptor, it ensures seamless, immersive viewing with zero lag and full HDCP 2.3 support for flawless streaming.

## Description

Introducing the HDMI 2.1 Fancy Sync Box. Sync movies and games in 4K 120Hz and 8K 60Hz, supporting HDR, DV, ARC, ALLM, VRR capabilities. Our specially designed HDMI 2.1 chip ensures that HDR colors are transmitted accurately, resulting in LEDs that are saturated with color providing an unparalleled level of visual immersion.

Review: What sets this apart is that it uses the feed directly from the receiver—no bulky camera stuck to the top of the TV like other brands. Setup was super easy, and my whole family is obsessed with how much bigger and more immersive it makes the TV feel. I previously had a similar model from another company, and it was just okay. This one, though, looks fantastic—clean, bright, and way more accurate with the colors. The clip I shared is from one of the best scenes in Game of Thrones (Battle of the Blackwater), and this was filmed at 2 PM with the lights on. It looks even brighter and more incredible in a dark room. If you're on the fence, this is the one to get.
Review: I know back lighting has been around for a while, but this device syncs perfectly with the content on the screen. Whether it’s sports, news, or movies, it doesn’t take away from the content on the screen. Note that the 3-port option does not provide automatic HDMI switching. Save your money and just buy this model and invest in a good quality automatic HDMI switcher. HDMI Devices -> HDMI Switcher -> Fancy Box -> TV

## Features

- IMPORTANT: PLEASE READ – HDMI Device Required: You must connect a compatible HDMI device for syncing. Apps on your Smart TV are not synced; only apps and streaming services on your HDMI device can be. Use with a PC is NOT recommended. For a full list of compatible HDMI devices, please visit the FancyLEDs website or contact our support.
- Universal Power Adaptor - All items are sold with a universal power adaptor compatible with US, EU, AU, and UK power sockets.
- HDMI 2.1 - 4K 120Hz VRR, ALLM, HDR, DV Enabled. Next-gen compatible, perfect for all TVs.
- RGBW LEDs Included - Upgraded with RGBW technology, these strips use a dedicated white diode to enhance white tones, delivering amazing visuals.
- High Speed - No lag or delay between the Smart LED lights and TV. Delayed lighting is distracting. Lightning-fast color reaction times keep you immersed for an enhanced gaming and movie session using supercharged peripheral lighting.
- HDCP 2.3 Compliant - Enables streaming services in 4K and 8K. Copyright issues and black screens are a thing of the past. Our smart ambient lighting system ensures that all streaming services work every time without issues.
- Optimized Colors - Accurate colors matching onscreen content. No camera is used; simply connect your HDMI device, allowing colors to be extracted directly from the data and synced to create an unmatched colorful cinematic experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D24X81ST |
| Best Sellers Rank | #12,191 in Electronics ( See Top 100 in Electronics ) #2,878 in Home Theater, TV & Video Products |
| Item model number | FSB1P2.1 |
| Manufacturer | Fancy LEDs |
| Product Dimensions | 16.76 x 10.41 x 23.11 cm; 748 g |

## Product Details

- **Brand:** Fancy LEDs
- **Connectivity technology:** Bluetooth, Wi-Fi
- **Connector type:** HDMI
- **Resolution:** 8k
- **Special features:** HDMI 2.1, RGBW LEDs, High-Speed Syncing, HDCP 2.3 Compliance, Optimized Colors

## Images

![Fancyleds HDMI 2.1 Fancy Sync Box Syncing Device; 4K 120Hz, HDR (for 24" to 55" TVs) - Image 1](https://m.media-amazon.com/images/I/51aN6J8OlTL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 30 November 2025*

What sets this apart is that it uses the feed directly from the receiver—no bulky camera stuck to the top of the TV like other brands. Setup was super easy, and my whole family is obsessed with how much bigger and more immersive it makes the TV feel. I previously had a similar model from another company, and it was just okay. This one, though, looks fantastic—clean, bright, and way more accurate with the colors. The clip I shared is from one of the best scenes in Game of Thrones (Battle of the Blackwater), and this was filmed at 2 PM with the lights on. It looks even brighter and more incredible in a dark room. If you're on the fence, this is the one to get.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 13 September 2024*

I know back lighting has been around for a while, but this device syncs perfectly with the content on the screen. Whether it’s sports, news, or movies, it doesn’t take away from the content on the screen. Note that the 3-port option does not provide automatic HDMI switching. Save your money and just buy this model and invest in a good quality automatic HDMI switcher. HDMI Devices -> HDMI Switcher -> Fancy Box -> TV

### ⭐⭐⭐⭐⭐ Review
*by A***A on 29 November 2025*

📺 Smooth 4K120 passthrough with fun ambient lighting The Fancy LEDs HDMI 2.1 sync box works well with my setup and handles 4K 120Hz without issues. The lighting reacts quickly and adds a nice boost to movies and games. ✅ Pros: Genuine 4K 120Hz passthrough with HDR support Lighting reacts fast and matches the screen accurately Setup is straightforward with clear instructions Works well for both movies and gaming Good brightness on the included LED strip ❌ Cons: App can be a little slow to connect at times LED strip adhesive could be stronger Best results come in darker rooms, not as effective in full daylight

## Frequently Bought Together

- Fancyleds HDMI 2.1 Fancy Sync Box Streaming Media Player Syncing Device; 4K 120Hz, HDR, Movies Supported (for 24" to 55" TVs)
- Amazon Fire TV Stick 4K (newest model) with AI-powered Fire TV Search, Wi-Fi 6, stream over 1.5 million movies and shows, free & live TV

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-05-06*