# M0151 USB

Source: https://forum.modalai.com/topic/3070/m0151-usb
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2024-01-30 22:09:23 UTC by robertshmurda
Replies: 1 · Views: 661

## robertshmurda · 2024-01-30 22:09:23 UTC

Hello,
I would like to attach an external device (a LiDAR device) via USB-to-serial to the VOXL2. I was looking through the documentation of the M0151, but I only see that the UART port can be accessed at /dev/ttyHS1. Would connecting my device via the expansion board open up a ttyUSB port to access?

## Reply by Alex Kushleyev (ModalAI staff) · 2024-01-30 23:08:57 UTC

@robertshmurda , M0151 provides a native UART expansion port (as you noted) and a USB 3.0 expansion port. So you would need to plug an extra USB-to-serial adapter into the USB port if you need another serial port.

M0151 details [here](https://www.modalai.com/collections/expansion-board/products/m0125) . Please note that you can order board only or board + cables