---
name: "ubsa"
section: "4"
platform: "linux"
package: "freebsd-manpages"
version: "6.0-5"
release: "Debian 4.0 (Etch)"
platforms: ["linux", "freebsd", "openbsd"]
url: "https://new.carta.tech/ubsa"
---

# ubsa(4)

USB support for Belkin serial adapters

## NAME

**ubsa** – USB support for Belkin serial adapters

## SYNOPSIS

**device ubsa** **device ucom**

## DESCRIPTION

The **ubsa** driver provides support for the USB-to-RS232 Bridge chip used by a variety of serial adapters from Belkin and other vendors.

The device is accessed through the [ucom(4)](/ucom/4.md) driver which makes it behave like a [tty(4)](/tty/4.md).

## HARDWARE

The **ubsa** driver supports the following adapters:

- Belkin F5U103

- Belkin F5U120

- e-Tek Labs Kwik232

- GoHubs GoCOM232

- Peracom single port serial adapter

- Vodafone Mobile Connect 3G datacard

## SEE ALSO

[tty(4)](/tty/4.md), [ucom(4)](/ucom/4.md), [usb(4)](/usb/4.md)

## HISTORY

The **ubsa** driver appeared in FreeBSD 5.0. The [uplcom(4)](/uplcom/4.md) manual page was adopted from NetBSD by Tom Rhodes ⟨trhodes@FreeBSD.org⟩ in April 2002 and modified for the **ubsa** driver by Alexander Kabaev ⟨kan@FreeBSD.org⟩ in October 2002.

## AUTHORS

The **ubsa** driver was written by Alexander Kabaev ⟨kan@FreeBSD.org⟩.