Used for receiving digital TV program and IP data from the satellite, and you can watch free and scrambled TV programs (with CAM or without CAM slot) through computer. Support third party's applications such as ProgDVB and My Theatre. Specifications: pliant with MEPG2 based on DVB Transmission Standard 2.Frequency:950MHz~2150MHz 3.QPSK Demodulator 4.Extended Symbol Rate:2~45 MS/s pliant with TCP/IP,UDP protocol 6.Support real time Digital Video Recoding (DVR) 7.SCPC and MCPC Capable 8.Interface: USB2.0 9.Operation System: Windows 98SE/2000/XP 10.Support all kinds of CAM