J-Tech DigitalHDMI EDID Emulator HDCP Manager 4K60Hz Auto Downscaling, 8 EDID Modes & Custom EDID Settings, Power by USB C or HDMI, Supports CEC On/Off [JTECH-EDIDM4K]

There are not many EDID box that work with HDMI 2.0b and also allow custom EDID to be written back to this. I have two rooms with LG OLED and Nvidia Geforce and the Yamaha receviers were HDMI 2.0 while the Nvidia was HDMI 2.1 40GBPS. The reciver is $2K per and its not being replaced but the computer would freak out over years with the second HDMI>Yahama> OLED. Since it was the same TV Windows would work but everytime I would turn it on it would go south.Captured my Yamaha EDID with Toasty. Hooked up computer to yamaha but removed the yamaha from the TV. This allowed the Yamaha EDID to only be present. I captured that only. Wrote it to the box and saved $4K.Years of issues as not many EDID box allow HDMI 2.0 plus writting the custom EDID. This is a 10/10 product when used with the custom EDID. The customer EDID does even need properity software to write just drop the txtx file. You will need software for the EDID but not software to write to the EDID.

First of all, it is very blurry text at 4K60Hz. Unusable.Also, I had hoped to use it with a KVM, which didn't work at all.I was trying to keep my laptop thinking it was connected, so I could switch between PC and Laptop.It seems to disconnect. With a KVM I need to switch inputs on the monitor and then back to the KVM connected input in order for it to recognize the laptop. So I thought an EDID emulator would work to keep the Laptop thinking it was connected even though the KVM was switched out to my PC.This above wouldn't work at all. All I get from Laptop to this Device to Monitor is a black screen, regardless what I have it set at.User support is trying to give instructions on creating a user defined EDID, but support keeps revising what to do, and what they are saying doesn't make sense.Regardless, even if I could get it to work with a KVM, it is useless because the screen is horribly blurry going through it without the KVM anyway.I will say support has been responsive, but useless.

I have problem with 4k tv flickering from sdi to hdmi from atem Blackmagic switch

JTECH-EDIDM4KFirst of all, this is not a HDCP defeat device. It will not allow you to record anything you could not record otherwise. If you are looking for one of those, keep looking.It is designed to solve two specific cases.1) You need to replace the EDID (device identification) of a display to force a different mode. The options are 1080P, 4K30, and 4K60, with either linear PCM or DTS/Dolby. This could be put before a splitter if you need to drive different monitors with incompatible specs, or wherever a source is not getting along with a display.2) You have a source that requires HDCP 2.2 and a display that only handles HDCP 1.4, this box can translate one to the other.There is also a switch to enable or disable CEC (remote control back from the display to the source) as there are cases where this causes problems and you want to turn it off.You are supposed to be able to upload a custom EDID by plugging the device into a PC and copying a file to it. The device shows up as a disk when plugged into a PC, and there are instructions on the site as far as how to copy files. However, it was not clear how to create such custom files. There is an EDID Manager windows utility on jtechdigital dot com slash downloads, so you could try that if you need to make a custom one.You need a USB-C 5 volt power supply to power the device.Buy this if you have one of these specific problems.

The Simple: Multiple 4K monitors, producing education/training videos for possible display on FHD equipment. I get seamless downscaling to FHD for the recordings regardless of the input resolutions. 4K screen recording, FHD camera, etc.. I'm hardly a pro at this stuff, and this piece handily takes care of these and several other issues on the way to production.It gets the job done for me!

Came in a small white box the exact size of the unit with extremely poor instructions. Their website also has zero instructions for this item, same for their YouTube page. It has multiple switches on the front and no explanation on how it should be configured in any way. It says that it should have a boot installer on the unit, it doesn't. I'm not sure who they expect to be using this item, but the seem to expect someone who buys this to already know how to use it.

Works as expected. No disruption in the signal. Good connection.

I have a projector that, for some reason, does not seem to get along with either wireless or ethernet cable based extenders, and I was hoping this could solve that problem for me, but alas it was not to be. I can't fault the device, though, since I have no idea why I'd have that problem in the first place.I was also hoping it could capture EDIDs as a file to examine, but it does not do this, either. You can hook it up to a USB port and it is presented as a drive, but there is no EDID file to be found for whatever device you're copying at the time and the text file it uses to show it's ready for upload is empty.I don't like that you have to name files with very exact and obscure names such that if you lose the instructions you will probably never remember what those file names are, but having to upload a specific EDID is a pretty specialized use case. Then again, the whole product is kind of a special use case that didn't work in my specific case.It's not terrible as a piece of diagnostic gear to test or experiment with, but don't expect it will always help you with overscan, if that's your problem, as that is the problem I have that this could not fix.