Stylus active pen compatible for Latitude 7340 Touchscreen

It depends on what you want from the pen.  You won't find any active pen supported as far as what the pen is capable of (precision, pressure-sensitive writing) because the notebook has a touchscreen - not an active digitizer that would require.

You can get the same results with a $10 generic capacitive stylus such as is designed for a cell phone or tablet.

If you're looking for full writing capability, you need the 2-in-1 version of the system.

Hi @ejn63​ , Thank you for the respond. So, only a capacitive stylus will work with this laptop. Will it only function like a mouse pointer? Or can it also be used for writing, erasing, and changing the color of the text.

You'd have to use it as a mouse -- selecting those from whatever program you're running.  The stylus will do anything your finger on the touchscreen can, but nothing more.

@ejn63​ Thank you, just one more question. I tried to find Dell standard stylus pen, but only Active stylus available, can we use this (active stylus) even without full writing capability.

There are no guarantees, and it makes little sense to spend upward of $50 or more on an active pen when a $5-10 capacitive stylus will do the same thing.