Video fusers: two PCs, one monitor, zero software.
A fuser is a small video mixer box. Your gaming PC's display cable and your second PC's display cable both plug into it; a single cable runs to your monitor. The fuser blends the two pictures inside the box, downstream of your GPU — faster than any software overlay could, and without a single process running on the gaming side.
Two cables in
Gaming PC HDMI/DP goes into input 1. The second PC's overlay output goes into input 2. That's the whole installation.
Blended in hardware
The fuser chip composites the two feeds with hardware color-keying — under 0.1 ms added, imperceptible in any competitive match.
One clean cable out
Your monitor receives a single normal signal. Because the blend happens after the gaming GPU's output, the gaming PC's own recordings show only the game — the overlay is added in the box, not in software.
Compare every fuser
Pick by your monitor: HDMI 1080p/1440p today, DisplayPort 4K for high-refresh rigs.
| Fuser | Max resolution | Inputs | Latency / sync | Price | |
|---|---|---|---|---|---|
 DICHEN 6th-Gen Fuser (HDMI) Hardware Overlay | 1080p @ 240Hz, 1440p (2K) @ 144Hz | Dual HDMI 2.0 (Host PC + Secondary PC) | < 0.1 ms (Imperceptible) | $99.00$129.00 | View |
 GODLIKE 9th-Gen Fuser (DisplayPort 4K) DisplayPort 4K | 4K @ 144Hz / 2K @ 240Hz / 1080p @ 360Hz | DisplayPort 1.4 High-Bandwidth | < 0.1 ms | $199.00$249.00 | View |
Hardware Video Fuser2K @ 240Hz Esports Gaming PC In Radar / 2nd PC In LATENCY <0.1 ms Imperceptible DisplayPort 1.4 + HDMI 2.1100% On-Device Compositing DICHEN D60 Esports Fuser (2K 240Hz) Esports Tournament | 2560x1440 @ 240Hz / 1920x1080 @ 360Hz | 2x DP 1.4 + 1x HDMI 2.1 | Dual-Core Hardware Frame Locked | $319.00$379.00 | View |
Hardware Video Fuser4K @ 240Hz OLED Gaming PC In Radar / 2nd PC In LATENCY <0.1 ms Imperceptible DisplayPort 1.4 + HDMI 2.1100% On-Device Compositing DICHEN DC500 Flagship Fuser Ultimate Flagship | 4K @ 240Hz / 8K @ 60Hz | — | FPGA-Accelerated Lossless Alpha Compositing | $419.00$499.00 | View |
1080p/1440p gamer? DICHEN 6th-Gen.
Dual HDMI in, 240Hz-capable at 1080p. The value pick and the easiest first fuser to wire up.
High-refresh DisplayPort? 9th-Gen or D60.
Native DP 1.4 up to 4K 144Hz (9th-Gen) or frame-locked 1440p 240Hz for tournament play (D60).
4K 240Hz OLED? DC500.
The flagship: DP 2.1/HDMI 2.1 bandwidth, on-box OLED status panel, lossless HDR passthrough.
Fuser questions, answered straight
Does the fuser add input lag?
Under 0.1 ms — it passes the gaming signal through essentially untouched and only blends the second feed on top.
Does my gaming PC need any software for it?
No drivers, no processes, no capture. The fuser operates entirely on the monitor cable, downstream of your GPU.
G-Sync / FreeSync still work?
On the D60 and DC500, yes — variable refresh passthrough is supported. HDMI models run fixed refresh.
Do I need a DMA card to use one?
The fuser only handles video. For a complete 2PC setup, pair it with a DMA card and an input controller — or use the 2PC bundle builder for a configured discount.