Efficient and reliable digital hard-disk video recording, clear picture reliable single-CPU system, smooth operation. Data Compressing Format MPEG-4 Display Speed Resource 25 Frames Network Connection PSTN ISDN ADSL Visual Signal Input 4 Channels PC Requirement PIII500 / 128M / 40G Signal Input/Output PAL / NTSC Software Supports Windows 98 / ME / 2000