The Vess A3340 16TB 8-Bay NVR from Promise Technology is built to offer high levels of performance for IP video surveillance and is well-suited for mid-sized video surveillance installations. It supports up to 80 IP cameras, is powered by an Intel Xeon E3 processor and 8GB of DDR4 RAM, and has a capacity of 16TB that is split over eight 2TB SATA 3.5" hard drives, each of which utilizes one of the NVR's eight drive bays. A 64GB M.2 SSD is built-in and hosts the operating system, and there are also two Gigabit Ethernet ports, six USB 3.0 ports, two USB 2.0 ports, DisplayPort, HDMI and VGA video outputs, one RS-232 serial port, one PCIe 3.0 x8 slot, one PCIe 3.0 x4 slot, and support for RAID 0, 1, 1E, 3, 5, 6, 10 (0+1), 30, and 50. For those who wish to increase the storage capacity of this NVR, expansion is possible through iSCSI and multiple JBOD expansion enclosures. The supported operating systems are 64-bit editions of Windows Embedded Standard 7 Runtime (WS7P), Windows 10, and Windows Server 2012 R2 Standard. This NVR is powered by an internal 350W power supply that runs using 100~240 VAC at 50-60 Hz and includes a power cord.
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Predictive Playback - utilizes idle recording times to monitor read patterns to predict where the next playback will be needed so the hard disk drives are not competing with the workload of the system.
Remote Active Service - proactively detects when the PSU, controllers, or HDDs are going into critical condition and automatically notifies Promise support so the customer can be contacted, spare parts can be sent out, or the unit can be powered up after an outage. All of these are vitally important in environments that cannot risk downtime.
Sequential Pattern Recording - eliminates heavy workloads caused by random write patterns by monitoring recording patterns, collecting data in the cache buffer, and only writing data to the drive once a full stripe is ready. This creates a sequential recording pattern which offers smooth performance.