Click to expand Tap to zoom Hanwha Techwin SRD-442-500GB DVR by Hanwha Techwin SKU SRD-442-500GB Get a Quote Features Front panel 4.3" touch screen 4CH CIF real-time DVR SATA I/F HDD support (Internal Max. HDD x 2) 500GB Raw Storage Smart phone support 1CH audio input and 1CH audio output