# VOXL2 to USB A 3.1 J3 Breakout Board

Source: https://forum.modalai.com/topic/1600/voxl2-to-usb-a-3-1-j3-breakout-board
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2022-12-07 00:42:15 UTC by Moderator (ModalAI staff)
Replies: 1 · Views: 357

## Moderator (ModalAI staff) · 2022-12-07 00:42:15 UTC

Hello. I am trying to make a development board that connects the VOXL2 to a USB A 3.1 (among other things). I'm using a Saiko Systems BRK-USB-A-3.1 for a breadboard proof of concept. I have one question about the VOXL2 pinout. On J3, I see that pins 12, 14, 16, 20, 22, 32 & 34 map to a USB device, but I'm not sure what J3 pin 8 "USB1_HS_ID_LEGACY" is for. Will the USB-A-3.1 function properly without connection to this pin?

## Reply by Vinny (ModalAI staff) · 2022-12-07 00:47:18 UTC

@Moderator 
Pin 8 is not needed.
The USB on Voxl/Voxl2 J13/J3 is always a HOST. Previous gen designs used this for OTG selection, so we manage this directly on Voxl2. For all intents and purposes, pin 8 is a "dead pin" and should be N.C. (no connect).
Let us know if you have any other questions.
Thanks