Synology RS2821RP+ RackStation 16-Bay Scalable Nas ( Rail Kit Optional ) Check HDD Compatibility Listing.

Synology RackStation RS2421+ 12 Bay NAS Synology RS2821RP+ is a 3U 16-bay storage server designed to accommodate a diverse set of business requirements. Scalable to 28 drives, the unit provides powerful backup and restoration functionality for the SMB sector. It delivers 2,200 MB/s sequential read and 105K 4K random read performance1, and can be upgraded with SSD cache and 10/25Gb Ethernet2 options. CPU ModelAMD Ryzen V1500B CPU Quantity1 CPU Architecture64-bit CPU Frequency4-core 2.2 GHz Hardware Encryption Engine (AES-NI) ystem Memory4 GB DDR4 ECC UDIMM Memory Module Pre-installed4 GB (4 GB x 1) Total Memory Slots2 Maximum Memory Capacity32 GB (16 GB x 2) Maximum Drive Bays with Expansion Unit28 (RX1217/RX1217RP x 1) Compatible Drive Type* (See all supported drives)3.5' SATA HDD 2.5' SATA HDD 2.5' SATA SSD Hot Swappable Drive RJ-45 1GbE LAN Port4 (with Link Aggregation / Failover support) USB 3.2 Gen 1 Port*2 Expansion Port1 PCIe Expansion1 x Gen3 x8 slot (x4 link) Form Factor (RU)3U Rack Installation Support*4-post 19' rack (Synology Rail Kit - RKS-02) System Fan80 mm x 80 mm x 3 pcs Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter550 W Redundant Power Supply AC Input Power Voltage100 V to 240 V AC Power Frequency50/60 Hz, Single Phase Operating Temperature0°C to 35°C (32°F to 95°F) 3-year hardware warranty, extendable to 5-year coverage - EW202 Mention: If NAS use over 8TB HDD, please only chose Synolgy Brand HDD https://www.synology.com/en-global/compatibility