Brand N/A Model S-DVR Material Iron casing Quantity 1 Color Black Video System PAL Video Compression N/A Audio Compression N/A Video Standards N/A Video Input 1-channel Video Output 1-channel Audio Input 1-channel Audio Output 1-channel Interface Type NO Max Capacity NO TB Network Interface NO USB Interface NO PTZ Control NO Operating system NO Supported Languages English / Chinese Other Features 1. Supports memory card up to 32GB; 2. TV system: NTSC / PAL 3. Recording: Local storage auto loop recording; 4. Recording method: Continuous recording motion detection recording and hybrid recording; 5. Video resolution: 640*480(VGA)/ 320*240(QVGA); 6. Image resolution: 640 x 480 Working Temperature 10~55