The PLATE9M16LP (16 inch/ 0.4 m) Low Profile Serial Plate adds a DB9 serial port to the rear panel of a small form factor/low profile computer, connecting to an IDC10 header connector on the motherboard. Constructed of high quality components, this durable low profile DB9 bracket is backed by StarTech.com's lifetime warranty. Please refer to this product's Technical Specifications to ensure compatibility with your motherboard. Enabling DB9 serial connectivity on a compact POS computer.