The DS-9664NI-I8 NVR is capable of up to 12MP recording resolution with 2CH HDMI, 2CH VGA, HMDI1 at up to 4K(3840x2160) resolution. The Hikvision DS-9664NI-I8 can accommodate up to 8 SATA interfaces and supports HDD Hot Swap with RAID 0, 1, 5, 10.