Yes, it can be plugged in separately via USB. It does not have to be connected to a Thrustmaster steering wheel.

Yes, you can connect the TH8S Shifter Add-On to the T248. The TH8S Shifter Add-On is compatible with all Thrustmaster Force Feedback steering wheels, including the T248, via the DIN connection.

Yes, the Thrustmaster TH8S Shifter Add-On is also compatible on the PC. It can be connected directly to a USB port of the PC, menggunakan the USB-C/USB-A cable provided. It is compatible with all racing steering wheels on the market that are used on the PC.

Do you plug the ad on into the steering wheel? If no, try that, if yes, defective?

The Thrustmaster TH8S Shifter Add-On can be connected in different ways, depending on the platform used: ## Connection via USB - On a PC, the shifter can be connected directly to a USB port using the USB-A to USB-C cable supplied. ## Connection via DIN cable - For use with Thrustmaster Force Feedback Racing Wheels on PS5, PS4, Xbox One and Xbox Series X|S, the supplied mini-DIN cable is used to connect the shifter to the steering wheel base. This means that the shifter does not have to be connected directly to the steering wheel, but can be connected either via USB to the PC or via the DIN cable to the steering wheel base.

Yes, it works with the t150 steering wheel

I have seen on youtube that there is a mod but only for the sequential mode for gear shifting but not for handbrake.

This shifter is compatible with the PS4 and PS5. But you can't mount the shifter on thick tables because it doesn't screw on enough.

Yes if you're on a PC, because you have a USB connection