GameSirT4 Pro Wireless Game Controller for Windows 7 8 10 PC/iPhone/Android/Switch, Dual Shock USB Bluetooth Mobile Phone Gamepad Joystick for Apple Arcade MFi Games, Semi-Transparent LED BacklightCarbonfree Certified

- UPDATE!! The latest firmware and app version allow for setting the polling rate up to 1000hz!! This means the input delay can be shaved down to sub 1ms!! Best value PC gamepad on the market hands down!!- The T4 Kaleid is a great gamepad for many reasons, and not just because that sexy black PCB and clear shell! There are so many great features this gamepad has to offer as well as long lasting components and low input delay for a responsive experience.- The controller is recognized as an Xbox 360 gamepad in Windows 11 (XB1 in Steam) (X360 in reWASD)- 4ms(250hz) consistent input delay in PC mode (8ms gyroscope)- 8ms(125hz) consistent input delay in Switch mode (used reWASD to emulate X360 gamepad to measure)- Overclocking this gamepad did nothing as the jitter is already non-existent and polling rate locked- I did not test the other input modes for the gamepad- The hall effect joysticks in this gamepad are not made by GuliKit but feel very similar to the ones found on the 8-BitDo Ultimate and less like the KingKong 2 Pro- There are no anti-friction rings but the plastic around my joysticks is very smooth not catching at all- Using the software, you have total control over the deadzones of both joysticks- You can set the joysticks to raw mode through the software and completely disable the outer deadzone offering more precision however this will affect the circularity of the joysticks in both PC and Switch mode (PC mode turns from a circle to a circular square and Switch mode turns completely square)- With the outer deadzones capped to 95% I was getting near perfect circularity readings- Face buttons are super long lasting but will be subjective, I wish the plastic was matte, not glossy but I enjoy that they are cushioned and offer a satisfying click much like a mouse (they take getting used to because there is no feeling of bottoming out)- Capture button is only detected when in Switch mode- While I do prefer symmetrical joystick layouts like the DualSense offers, this gamepad is very comfortable for long periods of gaming (very lightweight and ergonomic)- The gamepad is wired only, but for me this was no issue as I grew up in the 90s and offers longevity as well as reduces e-waste- The included cable is very decent quality, thick and braided but keep in mind that the hole on the gamepad where the cable goes will only accept oval shapes- The D-pad is not terrible and for single inputs is very accurate however I still prefer the membrane ones found on the 8-BitDo Ultimate especially for games like Mario and Donkey Kong- The back buttons are limited to being mapped as the other controller buttons which is expected, but they are very easy to change on the fly without the use of software- Lighting effects have presets and brightness levels that can be adjusted on the controller without need for software- Vibration levels can be adjusted without software- ABXY layout can be swapped on the fly without software- You can easily change between input modes by holding the GameSir logo button and ABXY buttons (by default my controller goes into Switch mode when booting into Windows so requires me to manually change it or unplug and re-plug)- Can set hair trigger mode without the use of software (hold M button + L or R trigger for about 4 seconds) however this does not work in Switch mode probably due to Switch using digital triggers- The triggers are also hall effect and feel very smooth and can be completely adjusted using the software- Contrary to other people, I had only 1 issue where the software crashed when I was changing lighting effects on the controller and personally I love that the software is easy to use and not bloated like something you might find by Razer or Logitech- Overall, I just can't think of a better gamepad for this price point. I own a KingKong 2 Pro, 8-Bitdo Ultimate, and have upgraded 3 sets of joy-cons with GuliKit replacement joysticks, and these are the best feeling hall effect sticks on the market right now in my opinion. I've tried to go back to my DualSense Edge a few times since my purchase and I just can't, and for the price of just 2 replacement pot sticks from Sony you could be the proud owner of this masterpiece! Keep up the great work GameSir!

I had two basic requirements. One, have hall effect sensors (for at least the joysticks.) And two, have low latency via USB. Gamepadla shows this controller as one of the fastest USB gaming controllers and so I had to check this one out. I didn't care too much about wireless options because I prefer to play competitively with wired controllers. Customization and calibration via the T4K app from the Microsoft Store is very intuitive, useful, but not required. A lot of the basic customizations and calibrations can be changed via specific button combinations shown in the user manual. But using the app allows you to change the controllers default 250Hz polling rate and bump it up to 500Hz or 1000Hz.I uploaded screenshots of some of the results from Hardware Tester and Gamepadla for reference. Pleasantly surprised how well this controller performs. Gamepadla latency tests speak for itself. Hardware Tester shows the joysticks at an almost perfect zero while at rest. (Try getting a value that close to zero with a brand new Dualsense Edge or Xbox Elite.) When using the default joystick settings (RAW mode disabled), the circularity is almost perfect with a 0.4% error reading. But this makes some games that don't benefit from perfect circularity harder to play, such as Rocket League and possibly some fighting games. Raw mode enabled allows the controller to get a more square deadzone.While the controller doesn't have a premium feel like the Xbox Elite Controller, what makes up for that is the clicky tactile buttons, hall-effect joysticks/triggers, and customizability. Holding the controller did take a little getting used to and did not feel quite right at first compared ot the Xbox Series or Dualsense controllers. But it is starting to feel more natural after using for a few hours. Other than that, this controller is well worth the $40. Would probably have paid a little more than that if I was able to purchase it in store.