PTI-4600S is PTI's unique Hardware-based USB Dangle Modem comes featured-packed with ITU-T V.92 and ITU-T V.90 auto negotiation with auto-fallback to ITU-T V.34 and below. PTI-4600S offers three main features that every end user wants : Compact size, higher functionality and easy driver upgradability.

PTI-4600S operates with PSTN telephone lines worldwide which supports complete set of industry standard features for high speed Data/Fax applications.