The 4K fuser market is currently experiencing rapid growth, driven by demand from gamers, dual-PC setups, and professional multitasking users. Several well-known brands have entered this space, including DICHEN, IMMORTAL, Godlike, and the emerging CAPTAIN brand, creating a competitive landscape.
Current mainstream 4K fusers feature:
* Support for maximum output of 3840×2160@120Hz, with compatibility for 1K360, 2K240, and 3K165 displays.
* Dual input design (Primary PC via DP input + Secondary PC via HDMI input), outputting through a standard DP 1.4 port with up to 32.4Gbps bandwidth.
* Auto-adaptive secondary machine refresh rate without requiring manual injection or additional software — true plug-and-play.
* Equipped with high-performance internal processing chips; flagship models like DICHEN's support dynamic source signal recognition, ensuring stable output without frame drops.
* Ultra-wide monitor support, including 3440×1440@165Hz and 3840×1080@120Hz, compatible with leading brands like AOC, ASUS ROG, and Samsung Odyssey.
For example, the DICHEN 4K Fuser has been verified to work flawlessly with monitors like the AOC CU34G3X (3440×1440@165Hz), Skyworth 44C1G (3840×1080@120Hz), and ASUS ROG PG27AQDM (2560×1440@240Hz). Although the secondary PC may display lower resolutions (such as 2K or 1K mode), it does not affect the primary PC's true high refresh output during use.
The CAPTAIN brand has also introduced 4K fuser models featuring true no-injection technology, enhanced compatibility for secondary machines, and stable operation even when Windows misreports the display resolution. CAPTAIN models also feature metal casings for improved heat dissipation, making them ideal for prolonged high-load operation.
Compared to traditional 2K fusers, 4K fusers offer significant improvements not only in resolution and refresh rate but also in interface standards (upgrading from HDMI 2.0 to DP 1.4) and signal processing latency (reduced to below 1ms). 2K fusers generally max out at 2560×1440@144Hz or 240Hz, making them insufficient for modern 4K gaming and professional scenarios. 4K fusers are increasingly replacing 2K models as the new mainstream.
Overall, as pricing continues to decrease and technology becomes more mature, 4K fusers are poised to dominate the market in the near future.