Yes.

Unfortunately, the delivery date is currently unknown. However, we are already in contact with our supplier and as soon as we receive an update, we will update the availability accordingly.

Yes, DP & DVI support 144Hz

Yes, via 100x100 mm vesa mount. May need spacers as the vesa mount in the xl2430 is slightly recessed and the vesa plate of the desk mount can easily be too large (this is the case for me with arctic z2 pro desk mount).

If you have a credit card, you can pay it monthly. There is no direct payment by instalments. Payment options: https://www.digitec.ch/de/Wiki/4490

According to my information, the monitor supports neither G-Sync nor Freesync.

No, unfortunately not. Scope of delivery: monitor, power cable, DVI-DL cable, USB cable, S Switch Arc, manual/driver CD

Unfortunately, we have no way of verifying this exactly. However, these monitors were all delivered after October. Accordingly, it should have the newer firmware on it.

Hello Jones, The "Zowie" is an internal rebrand of the XL2430T. It uses the same panel but with a different product name. Nothing has changed. Greetings Dave