Enhance your security with this 4 Channel BNC H.264 CCTV Digital Video Recorder US Standard Black! Allowing wireless mouse control￡? it is more convenient than traditional types of DVR. Featuring high resolution it provides premium video quality for live and recording￡? while the lower bit rate is designed for fastest network transfer. Moreover￡? it supports USB flash drive￡? USB mobile hard disk and network backup￡? very convenient for you to restore captured happenings￡? and is also supportive for SATA HDD to expand memory up to 3TB. Worthy buying to enhance security! Don?ˉt miss the chance!                                    Features            H.264 video compression for clear viewingHigh video quality for live and recordingGraphics !#!amp!*! Windows OSD inter face for convenient useLow bit rate to ensure fast network transferSimultaneous live display￡? record￡? playback￡? backup￡? control and network operation is allowedSupportive for USB flash driver￡? USB mobile hard disk and network backupSupportive for SATA HDD to expand storage up to 3TBSupportive for wireless mouse controlA wireless mouse is attached in readiness                                                            Specifications            Operation System    Embedded Linux Operation System    <br>System Resource    4 Channel CIF real-time Video and Network-wide Transmission    <br>Operation Interface    Graphical User Interface (GUI)￡? Mouse    <br>Video Standard    NTSC    <br>Image Compressior    H.264    <br>Audio Compression    G711A    <br>Recoding Mode    Manual￡? Timing￡? Alarm￡? Motion Detection    <br>Video Search    Time Search￡? event Search￡? Channel Search￡? the Log Search    <br>Backup    Network Backup￡? USB Backup￡? SATA DVD    <br>Video Input    4 Channel BNC    <br>Video Output    1 Channel BNC    <br>Audio Input    1 Channel    <br>Audio Output    1 Channel    <br>Video Speed    NTSC: 30 frames / sec (adjustable)    <br>Video Save    The Hard Drive￡? Network (HDD is not included)    <br>Local Playback    1 or 4-channel CIF Playback    <br>Vedio Output    VGA￡? HDMI    <br>Network Interface    RJ45    <br>USB Interface    USB1.1/2.0    <br>Power    DC 12V / 2A    <br>Dimensions    (8.27 x 8.23 x 1.73)" / (21 x 20.9 x 4.4)cm (L x W x H)    <br>Weight    22.43g / 636oz    <br>                                                            Package Includes            1 x 4 Channel H.264 Digital Video Recorder1 x Wireless Mouse (Random Color)1 x Power Adapter(US Standard)2 x User Manual