Synology RS820+ RackStation 4-Bay Scalable NAS ( RAIL KIT optional ) (RS820+)

Synology RackSation RS820+ is an ideal network-attached storage solution for centralizing data management. Powered by a 4-core processor, RS820+ provides both high performance and scalable storage, ideal forfile sharing across different platforms and data backup. Synology RS820+ is backed by Synology's 3-year limited warranty.Specification:•CPU Frequency:Intel ATOM C3538 Quad Core 2.1Ghz•Floating Point : Yes•Memory: DDR4 non-ECC 2GB (Expandable, up to 16GB with 8GB SO-DIMM x 2•Internal HDD/SSD: 3.5" or 2.5" SATA x4 (Hard drive not included)•Hot Swappable HDD : Yes•External HDD Interface: USB 3.0 Port X 2, eSATA Port x1•Size (HxWxD): 44x430.5x457.5mm•Weight: 6.4Kg•LAN: Gigabit x4•Link Aggregation•Wake on LAN/WAN•System Fan: 40x40mm x3•Wireless Support (dongle)•Noise Level: 25.1 dB(A)•Power Recovery•AC Input Power Voltage: 100V-240V AC•Power Frequency: 50/60 Hz, Single Phase•Power Consumption: 46.2W (Access); 25.3W (HDD Hibernation)•Operating Temperature: 5°C-35°C•Storage Temperature: -10°C-70°C•Relative Humidity: 5%-95% RH•Maximum Operating Altitude: 6,500 feet