• PACTOR I, II standard.  Upgrade-able to PACTOR III.
  
• Termperature controlled crystal oscillator
  
• 100 mhz DSP 
  
• Same performance as the PTC-IIPro excluding multiport capability.
  
• Built-in VHF packet module.

The PTC-IIusb comes with: Installation Guide, serial and audio cables (connector at one end, raw wires at the other end), power connector and CD-ROM.