1/4"

Passive 1/4" jacks

1/4" is a pair of standard sized large TRS jacks with flexible rear-panel headers. Hook your 1/4" to any intellijel-format audio modules to act as front panel inputs, outputs, or a combination of both! 7hp may seem like a strange width, but this was chosen for good reason - this was the minimum width the hardware fit inside, and when paired with another 1/4" or a 3.5mm, you're left with an even number of hp occupied.

https://crey.space/products/1-4