5. Using the Xvision XUSB4DVR with other USB devicessimultaneously may cause a conflict and the computer may notrecognise the XUSB4DVR. Do not use more than one XUSB4DVR oruse with any other Video capture devices.6. For technical support, please contact your local distributor.3. SpecificationPCI Card: USB 4 Camera CCTV DVRVideo format: PAL/NTSCResolution: 352x288, 704x576 (PAL)Maximum Frame 25fps (PAL)Rate:Video Channels: 4Audio channels: 4Data format: MPEG44. System RequirementsOperating System: Windows XP or VistaCPU: Pentium 4, 1.7GHz or aboveGraphics: Nvidia Geforce 2/ATI Rage 128compatible or similarRAM: 256MBDirect X: Version 9 or aboveUSB 2.0 Sockets required: 13