Specification: Model No. QE-DS4008HCI Video Inputs: 8 Channels, Audio Inputs: 8 Channels Display Rate: 240fps(NTSC), 200fps(PAL) Recording Rate: 240fps(NTSC), 200fps(PAL) Compression Format: H. 264 Hardware Compression Preview Resolution: 768*576, Recording Resolution: 352*288 Support IE Browse OS: Windows 2000 / XP