Product Name: H.264 16/9-channel stand-alone DVR with imported board
Price: US$
Detail: (www topdoctor com cn)

Model No.: TOP-R501-16
Features:
●H.264 Baseline Profile video compression/decompression with configurable quality
●Realtime live display, 30 (NTSC) / 25 (PAL) IPS, for each channel
●Bi-directional audio capabilities
●Audio in 4 CH / audio out 2 CH
●Ethernet? for remote access, including web access, e-mail alarm notification,FTP video/audio file storage, and software upgrade
●1 I.E. software for up to 4 DVRs
●USB 2.0 for video/audio backup to versatile USB2.0 storage devices
●Internal DVD Models: Video/audio backup to internal DVD, including DVD+RW, DVD+R, and DVD-R

Specifications:
1.)Channel: 16 channel
2.)Video Input Format:NTSC/PAL: BNC 16CH In /2CH Out
3.)Display Resolution:NTSC:720*480 fps;PAL:720*576fps
4.)Recording Frame Rate&Resolution:NTSC:60/720x480,120/720x240,240/360x240;PAL:50/720x576,100/720x288,200/360x288
5.)Compression Method:Video：H.264；Audio：ADPCM
6.)Hard Disk Capacity:Over 500G Bytes,SATA HDDsx4 or SATA HDDsx2 & IDE HDDs*2
7.)Recording Time:23 days with 500GB HD @ 25 fps for Continuous Recording mode
8.)Recording Mode:Continuous, Motion detection, Sensor activated, Time schedule
9.)Sensors, Alarm:16 Input, 2 Output
10.)Audio:4CH In , 2CH Out
11.)Network:RJ-45
12.)Backup:2 USB 2.0 ports for USB 2.0 disk drives,DVD+RW, DVD+R,DVD-R,card readers,HDD,etc.
Internal DVD models:DVD+RW,DVD+R,DVD-R
13.)PTZ:RS-232；RS-485
14.)IR Remote Control Unit:yes
15.)VGA output:Optional
16.)Power Supply:90~264 VAC，47~63Hz；65W Max
17.)OperatingTemperature:0℃~+45℃