Check the listing for details. Sony Handycam UNA-PSTN USB Modem Adapter. Condition: New. Listed at 22.45 USD. This Sony modem is built for people who want an Internet connection without the hassle. It's also durable and high-powered. If you'd like to have ease of use, reliability, and performance, this Sony modem is your ticket. Hobbyists and families alike are attracted by the design and style of the Sony UNA-PSTN. Because this modem comes with dial-up ability, you can link to your chosen ISP from a multitude of locations. Make use of its full range of features using your OS by making use of the PC hardware drivers available for the Sony UNA-PSTN. Featuring a sleek external design, this Sony modem easily connects to different computers and facilitates troubleshooting. With a 56 Kbps download speed, this modem is fast, enabling you to access a spreadsheet, email, or data file in rapid fashion. In addition, the Sony UNA-PSTN is easily installable, with support for the USB interface, so you can hook it up to your machine and start using it right away.