维基百科所有的内容都应该可供查证。请协助补充可靠来源以改善这篇条目。无法查证的内容可能会因为异议提出而被移除。 There Is no pre-put in harddisk, and as a substitute, you'll have to buy a different disk drive for this system. Another thing to acquire Notice of is that this NVR can only assistance one particular harddisk with a highest storage of 6TB. All of our DVRs and NVRs https://getsocialselling.com/story3490585/facts-about-surveillance-cameras-revealed