Add a DB9 serial port to the rear panel of a small form factor/low profile computer. Connects to your motherboard & adds an additional DB9 serial port to the back of your PC Easy to use & install Backed by Star Tech.com's lifetime warranty The PLATE9MLP 9pin Serial Male to 10pin Motherboard Header LP Slot Plate adds a DB9 serial port to the rear panel of small form factor/low profile computer, connecting to the host computer motherboard using an IDC10 connector. Please refer to this product''s Technical Specifications to ensure compatibility with your motherboard. WhatÂ’s in the box 9 Pin Serial Male to 10 Pin Motherboard Header LP Slot Plate