QVP-85B OS: QVR Pro OS (QVP) CPU: Intel® Core™ i5 6-core/12-thread Processor CPU Architecture: 64-bit x86 Graphic Processors: Intel® UHD Graphics 730 Hardware-accelerated Transcoding System Memory:32 GB SODIMM DDR4 (2 x 16 GB) Maximum Memory: 64 GB ( 2 x 32 GB) Memory Slot: 2 x SO-DIMM DDR4 Flash Memory:5GB (Dual boot OS protection) Max Live Cameras (Local Display):56ch @ All 720p,H.264, 30FPS 34ch @ All 1080p,H.264, 30FPS Max Playback Cameras (Local Display) 16 Max Concurrent Connection (Client) 16 (4 live cameras / per remote client) *The number of client concurrent connection varies by live cameras Embedded Channel: 8 Max Channel 64 H264 / 1920x1080 / 30FPS Max Throughput 1686 Mbps Drive Bay: 8 x 3.5-inch SATA 6Gb/s, 3Gb/s Drive Compatibility 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives Hot-swappable M.2 SSD Slot 2 x M.2 2280 PCIe Gen4 x4 slots 2.5 Gigabit Ethernet Port 2 PCIe Slot 2 Slot 1: PCIe Gen 4