Dahua 4 Channel 720P Mini 1U HD-CVI DVR Dahua model name: HCVR5104H (This product is unbranded for OEM. Dahua's logo or model name is not on the product but OEM model name) HDD not included All channel 720P HDMI / VGA simultaneous video output, 1080p realtime live view 4 channel synchronous realtime playback, GRID interface & smart sear