Video fusers says which model fits your monitor. The three are wired a bit differently, so find yours in the table first.

Before you start

A cable from each computer to the fuser, and one from the fuser to your monitor. Two come in the box, so you need at least one more (see the table)
Your second computer can send the resolution and refresh rate you play at. Both computers have to send the same mode. Which second PC works with which fuser checks this
The remote from the box
A keyboard and mouse for the second computer, or a KVM switch. The fuser only carries the picture

What each model needs

	10th Gen HDMI	10th Gen DP	4K Pro
Main PC and second computer plug in with	HDMI	HDMI	DisplayPort
Your monitor plugs in with	HDMI	HDMI, DisplayPort, or both at once	DisplayPort
Cables in the box	2 HDMI	2 HDMI	2 DisplayPort
Cable rating for the top modes	18 Gbps HDMI	48 Gbps Ultra High Speed HDMI for 1440p at 165Hz	VESA-certified DP8K
Power	12V 2A adapter from its box	12V adapter from its box	12V 2A adapter from its box, US plug, EU plug adapter included
Second computer's graphics	Anything that can send your mode over HDMI	Anything that can send your mode over HDMI	At least an AMD RX 470, an NVIDIA RTX 2060 or Radeon 780M
Controls	Remote only	Remote and buttons on the unit	Remote and front buttons

If your second computer only has DisplayPort or USB-C out, a 10th Gen model needs an adapter on that input. Above 1080p at 144Hz it has to be an active one. Getting HDMI out of a DisplayPort computer says which kind to get.

Wire it up

The inputs are marked on the back of the box. On the HDMI model and the 4K Pro, PC1 (M) is the main PC and PC2 (S) is the second computer. On the DP model they're written in Chinese: 主机 for the main PC and 副机 for the second. The output to your monitor is marked VIDEO OUT on the HDMI model, HDMI OUT and DP OUT on the DP model, and DP OUT on the 4K Pro.

How a video fuser is wired: main PC into PC1 (M), second computer into PC2 (S), and the fuser's output to your monitor

GODLIKE 10th Gen Fuser (HDMI), back panel labeled

GODLIKE 10th Gen Fuser (DP), back panel labeled

GODLIKE 4K Pro Fuser, back panel labeled

Main PC into the main input, from the graphics card, or from the motherboard if you use integrated graphics.
Second computer into the second input.
If you swap the two, the game ends up on top and it looks like the fuser is broken.
Output to your monitor.
On the DP model you can use HDMI and DisplayPort out at the same time.
Power last, then switch on.

Set both computers the same

Set both computers to the same resolution and refresh rate, and make it a mode your fuser supports. On each computer, open Settings, System, Display and set Display resolution. Then open Advanced display and pick the rate next to Choose a refresh rate. On Windows 10 that's Advanced display settings, then Refresh rate. Windows only shows rates your graphics and the screen at the other end support. If the rate you want is missing on the second computer, it can't send it from that output.

Set the second computer's desktop background to plain black too (Settings, Personalization, Background, Solid color). Black is see-through on the fuser, and most software draws its overlay on black. So only the overlay shows over your game.

Why the second computer's background goes black: the game on the main PC, plus the second computer's black screen with the software's boxes, gives your monitor the game with only the boxes on top

On the 10th Gen models EDID passes through. Each graphics card sees your real monitor and offers its normal modes, so there's nothing else to set up. The 4K Pro's listing doesn't say either way.

Pick the mode

Use the remote, or the buttons on the unit on the DP model and the 4K Pro. GODLIKE uses the same remote for all its models, so it has buttons for modes your box may not do (the 4K PRO row on a 10th Gen). Pick a mode from your model's list in Video fusers.
Start with a lower mode if nothing comes up, then go up. A mode change takes about ten seconds on the DP model. Older generations took forty seconds or more.
Switch channels to check each picture on its own, then go back to fusion.

If there is no picture

Work through these in order:

Plug each computer straight into your monitor for a moment and set it to 1920 × 1080 at 60Hz, then put it back on the fuser. You can't change the mode on a machine you can't see
Power both computers off fully and back on
Unplug your monitor from the fuser and plug it back in
Check all the cables are in the right ports and seated, with no adapter you can avoid
With the fuser on, press the EDID button on the remote if yours has one, wait about 30 seconds, then choose 1920 × 1080 at 60Hz on the remote (on the 4K Pro, if that doesn't come up, its lowest listed mode, 1080p at 144Hz). The HDMI model has no buttons on the box itself, so everything is done from the remote
Once there's a picture, raise the resolution and refresh rate one mode at a time

A mode that won't come up is often a cable that isn't rated for it, an adapter in the path, or a mode your monitor or graphics card won't take.

Final check

Main PC in the main input, second computer in the second input, monitor on the output
Both computers on the same resolution and refresh rate
Second computer's background black
Mode chosen and both channels checked

If there's still no picture after the recovery steps, open a ticket in our Discord and tell us your fuser model, your monitor and the mode you're trying.

GODLIKE video fuser setup and wiring