This item was kept in stock. Although it is unused, it is being listed as "minor signs of use, scratches, and dirt, but not noticeable" because the manual is not included and its operation has not been confirmed. Please purchase only if you understand this. If you have any questions, please be sure to ask in the comments before purchasing. We cannot accept inquiries after a purchase. Thank you. Please check the specifications in the third image. ・ H.265/H.264 High Profile /HD/960H/IP ・ HDMI 4/2K(3840*2160・1920r*1080）recording and playback ・ AHD・TVI・CVBS+IP/LINUX OS equipped ・ Standalone NVR 4/8/16Ch 1080p/720p ・ Supports HD/IP input and output of 2/4/5Mp video ・ Automatically searches for connected IP cameras and displays them on the screen ・ Network supports LAN/DHCP/DDNS ・ 4Ch ・Recording rate HD1080p/30fps・IP HD1080p/30fps If you have any questions, please ask before purchasing. Thank you.