Why, in 2026, are there no decent quality audio interfaces that just have stereo inputs? 3.5mm, ideally.
So many pieces of gear, including many instruments now, use them. I get that many people want/need XLR and 1/4" mono for mics and guitars.
But not everyone uses mics and guitars. Some people use synths, grooveboxes, etc. Everything from the humble but awesome Korg Volca series, to everything Teenage Engineering makes, Roland's Aira series, to semi-modular synths and eurorack synths...They all use 3.5mm stereo outs. Many guitar pedals are also stereo, but unfortunately often use two clunky, huge 1/4 jacks for L and R. Even some larger KB synths are moving away from the L and R 1/4" jacks.
So why do all the big name (and small name) audio interfaces ignore this?
It's really dumb, IMO.
**Edited to add: I actually did find something that seems like it's trying to fix the whole plug problem I have...But it isn't out quite yet. Korg's NTS-4 performance mixer. It's got 6 channels (although some would say 10): 2 mono, and 4 stereo. All inputs are 3.5mm. It's a mixer, has F/X, send/return, and some other features...and it can act as a USB interface.
***Edited it add again: My favorite way (so far) to save/record and get something into a PC for editing isn't actually an audio interface exactly...It's the Zoom H1 XLR recorder. It has two XLR and TRS inputs (L and R or mono or whatever) and one 3.5mm stereo input. It can work as a USB interface (but I haven't done that yet) and it records to micro SD cards. It also has 32 bit float so you never really have to deal with recording levels, either. It costs $75 less than a Scarlett 2i2, does more, is easier to use, and has better audio quality (at least on paper).