MAYFLASHN64 Controller Adapter for Switch/Switch 2, PC Windows N64 Converter MF103

I bought this not knowing whether it would work with my original N64 controller and new Steam Deck, particularly the RetroArch N64 emulator run through EmuDeck. After first plugging it into my Steam Deck dock's USB, with the red light on, only the back button (the A button on the N64 controller) and a couple other random controls worked. I couldn't figure it out until I realized that the red light is intended for Switch per the manual.To get it set for the Steam Deck, hold the “HOME” button on the adapter until the color changes to green, which is the Xinput setting intended for PC use. This does everything you need it to for the main Steam Deck interface: Select (A), back (B), and navigation (Joystick). The tricky part was getting it configured in RetroArch.Because Steam Deck recognizes the 2 inputs both as "Generic X-Box Pad", the N64 controller B button doesn't work right away (on Xbox, the B button is to the right, but on N64, it’s on the left). To get it working, I first made sure the N64 controller was listed first. You can do this by pressing Steam -> Settings -> Controller -> press the select/view button (top left on the steam deck) to "Reorder Controllers." Make sure Generic X-Box Pad is first. (If it still doesn't work in the next step, try switching the controller to the 2nd port on this adapter)Then I fired up the standalone RetroArch emulator and navigated to: Settings -> Input -> Port 1 Controls using a USB mouse also plugged in (although it may also working using the N64 controller). With the “Device Index” set as "Generic X-Box pad," you can select each of the following and press the matching button on the N64 to the reconfigure the buttons. For some reason, I found it necessary to set all of these (even if they are listed correctly), shown as “Auto,” or else they lose their settings when we save them later.D-Pad Up = push the up D-pad button = 11D-Pad Down = push the down D-pad button = 12D-Pad Left = push the left D-pad button = 13D-Pad Right = push the right D-pad button = 14A Button (C3) = press A button = 0B Button (C2) = press B button = 1Start = press Start button = 6L Shoulder = press L button = 9R Shoulder = press R button = 10Z Trigger = press Z button = +4Control Stick Y (up) = push joystick up = -1Control Stick Y (down) = push joystick down = +1Control Stick X (left) = push joystick left = -0Control Stick X (right) = push joystick right = +0C Buttons Y (up) = press up yellow C button = -3C Buttons Y (down) = press down yellow C button = +3C Buttons X (left) = press left yellow C button = -2C Buttons X (right) = press right yellow C button = +2Once complete, select "Save Controller Profile" and you should be good to go. If you use 2 controllers, you'll have to repeat these steps for the other port. It’s been working every time I reconnect the adapter for the last few days.If it ever gives you an issue in RetroArch where you can’t navigate or press any buttons, you can always exit by hitting the Steam button -> Exit Game.Overall, zero complaints so far. This product is working exactly as I need it to!

works perfectly, used it to play games i shouldnt be playing with an N64 controller

I've been working with electronics and emulators long enough to safely say that this adapter is not compatible with any version and input mod for Project64. If you've managed to get this to work in 2022 please share the secret because it's definitely not "updating the firmware" and "selecting the right Xinput or Dinput"Symptom: depending on attempt: directional controls on both the stick and pad unresponsive. At best I received a lagged down input once when mashing (post firmware upgrade). Device completely unrecognized with other attempts.Tried:- Updated firmware to latest successfully- Tried all 3 adapter modes with a varied combination of Pj64 major versions (including N-Rage, PJ64, and raphnet raw input mod in 3 different major versions + Xinput specified)- Unplugged and restarted: N64 controller, Adapter, and PC between diagnostic steps.- Tried on another PC (same result)- Changed N64 controller- Unplugged controller peripherals (mempack, rumble)Emulators and controllers are a two way street. The emulator dev and adapter manufacturer ought to ensure compatibility. In this case, adapters are saturated and N64 emulators are not. We all know it's just a couple of functional emulators. Look elsewhere for another adapter until this manufacturer has effectively resolved their compatibility issues. Look at the review dates and be ready to send this back if you still choose to buy.

I had to flash the firmware to the older MAYFLASH_MF103_N64_Adapter_Update_Firmware_V1.07.12.exe driver.I found that "LED Indicator in Red: Switch Mode" also binded the best. Dinput and Xinput exhibited joystick drift.I bought this adapter to pair with two "Brawler64 Wireless Edition N64 Controller" controllers and had the hardest time binding keys properly via PC. Primarily, the Start button would not register anything on the PC.I tried several gamepad testing websites and local software but they all reported no activity when Start was pressed.Good thing I got two controllers because I was able to verify that both controllers exhibited the same issue so the unit was to blame.

I know a lot of N64-related PC products tend to be shoddy, but this one worked very well. I haven't tested out the turbo options yet, but I can confirm that 2-player multiplayer works with this product on PC. Considering how cheap it is, I would say this adapter is a godsend for people who don't want to rely on cheap 3rd-party controllers as you can just use your 1st-party controller from several decades ago to great effect here!