Retro-Bit have just released a firmware update for their “v2” line of wireless 2.4GHz controllers that enables USB controller support via X-Input. That will allow you to use them on MiSTer, PC, Mac, Switch, RPi and basically all other devices that accept a standard USB controller. Retro-bit claims the average latency is only 4ms, however as-always, I’ll be interested to see what the community finds when we test. More info after the affiliate links to the v2 controllers currently in stock:
Firmware Update: https://retro-bit.com/controllers-support#v2firmware
Origin8: https://amzn.to/3LU4zsY
Big6: https://amzn.to/3WP4PQd
Saturn Pro (Black): https://amzn.to/3WA604M
Saturn Pro (White): https://amzn.to/3YxBcV0
Genesis (Black): https://amzn.to/3YuZWgw
Genesis (White): https://amzn.to/3Abp8P5
Tribute64: https://amzn.to/3WOJmqL
First, while I have no reason not to believe their 4ms claim, I need to stress the point that if true, it’s a controller lag test – That doesn’t account for the target device and it’s latency. Basically, if you’re plugging it into a MiSTer, their 4ms claim is probably true…but it’s not Retro-Bit’s fault if you have a laggy Windows PC, or if a software manufacturer releases a console update that slows down controller ports. When reading controller lag measurements, it’s important to remember that’s only the controller’s latency. Which is how it should be listed, but I just wanted to make that clear for any newcomers who might be reading this.
Also, according to the MiSTer controller latency database, some of the Retro-Bit wired controllers go as low as 1ms, while others have hit a frame or more. If this new firmware brings the wireless controllers down to 4ms when plugged in, I think that’s excellent. The N64-themed Tribute64 was already very low latency, however the other controllers had about a frame of lag. It’s my opinion that this might be the perfect solution: Use them wirelessly when ultra-low-lag isn’t required, then plug them in when it is.
I’ll try to get a few of these controllers in to test before and after the firmware update, however I’m still waiting on new equipment to arrive for that. Sorry for the delay!