The Zoom 5510 ADSL USB Modem is an ADSL data modem that delivers up to 8 Mbps data transport over existing copper wire lines. The ADSL modem works with any standard ADSL service in North or South America and supports: G.dmt, G.lite, or ANSI T1.413 Issue 2. The modem is designed for easy consumer installation through a Windows or Macintosh computer?s USB port. The Model is powered through the USB port to reduce power adapter clutter.