Synology DS1821+ DiskStation 8-bay NAS server, 2.5"/3.5" HDD/SSD/M.2, 4GB DDR4 , 4×G-LAN, USB3.0×4, eSATA×2, PCI-e, Wake on LAN/WAN

• Hardware Specifications• CPU Model: AMD Ryzen V1500B• CPU Architecture: 64-bit• CPU Frequency: 4-core 2.2 GHz• Hardware Encryption Engine (AES-NI): Yes• System Memory: 4GB DDR4 ECC SODIMM• Memory Module Pre-installed: 4GB (4GB ×1)• Total Memory Slots: 2• Maximum Memory Capacity: 32GB (16GB ×2)• Drive Bays: 8• Maximum Drive Bays with Expansion Unit: 18 (DX517 ×2)• M.2 Drive Slots: 2 (NVMe)• Compatible Drive Type: 3.5" SATA HDD / 2.5" SATA HDD / 2.5" SATA SSD / M.2 2280 NVMe SSD• Hot Swappable Drive: Yes• RJ-45 1GbE LAN Port: 4 (with Link Aggregation / Failover support)• USB 3.0 Port: 4• eSATA Port: 2• PCIe Expansion: 1× Gen3 x8 slot (x4 link)• Size (H×W×D): 166×343×243 mm• Weight: 6 kg• System Fan: 120×120 mm ×2 pcs• Fan Speed Mode: Full-Speed Mode, Cool Mode, Quiet Mode• Easy Replacement System Fan: Yes• Brightness Adjustable Front LED Indicators: Yes• Power Recovery: Yes• Noise Level: 22.2 dB(A)• Scheduled Power On / Off: Yes• Wake on LAN / WAN: Yes• Power Supply Unit / Adapter: 250 W• AC Input Power Voltage: 100 V to 240 V AC• Power Frequency: 50/60 Hz, Single Phase• Power Consumption: 59.8 W (Access) / 26.18 W (HDD Hibernation)• PACKAKING CONTENT: 1× Main Unit / 1× Accessory Pack/ 1× AC Power Cord/ 1× RJ-45 LAN Cable /1× Quick Installation Guide• OPTIONAL ACCESSORIES:• DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G• Expansion Units: DX517• 2.5" SATA SSD: SAT5200• M.2 2280 NVMe SSD: SNV3400• 10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2• VisualStation: VS960HD/VS360HD• Surveillance Device License Pack