This 4ch Analog x 2ch IP is a Hybrid DVR series is a professional quality Digital Video Recorder with BNC Inputs plus available IP channels. The units are also NDAA Compliant so you can install them in Federal Facilities. Its advanced features include Long Range Video Transmission and multiple format support. The DVR has SATA Bays for Storage.
If an NVR is sent in for warranty repair with an after-market hard drive and the hard drive is found to be the issue, diagnosis and repair fees may apply.