Planex states that the modem complies with the 56K ITU-T standard recommendations and supports the V.90 and V.92 protocols. It's also designed to be plug-and-play with the latest versions of Windows, meaning you can simply connect it to your USB port without needing to install drivers. Its compact size (25mm x 75mm x 18mm) and lightweight design (just 28 grams) make it easy to stow away, too.