StarTech.com 4-Port Industrial USB to RS-232-422-485 Serial Adapter - 15 kV ESD Protection - USB to Serial Adapter 6052ci It features five closable D-Rings

It features five closable D-Rings

Non-Toxic Materials independently certified for safety and compliance

White tape is designed for use with Dymo LetraTag Plus LT-100T and LetraTag Plus LT-100H

Innovative shake-free print system

Easily adjusts to your needs

StarTech.com 4-Port Industrial USB to RS-232-422-485 Serial Adapter - 15 kV ESD Protection - USB to Serial Adapter 6052ci It features five closable D-RingsAdd four extra COM ports to your laptop or desktop computer, quickly and easily. This USB to RS232 422 485 serial adapter lets you connect to your serial devices through an external USB port. Supports multiple serial protocols The versatile serial adapter converts a single USB port into four RS232 RS422 RS485 serial ports, enabling you to connect, monitor, and control a wide range of serial devices, such as sensors, barcode scanners, and LED signage.