An all-in-one edge storage solution The compact 1U 4-bay Synology RackStation RS822+/RS822RP+ with its storage and connectivity expandability coupled with the powerful Synology DiskStation Manager (DSM) operating system is an ideal edge storage solution for branch offices and small and medium-sized businesses. CPU Model AMD Ryzen V1500B CPU Quantity 1 CPU Architecture 64-bit CPU Frequency 4-core 2.2 GHz Hardware Encryption Engine (AES-NI) System Memory 2 GB DDR4 ECC SODIMM Memory Module Pre-installed 2 GB (2 GB x 1) Total Memory Slots 2 Maximum Memory Capacity 32 GB (16 GB x 2) Drive Bays 4 Maximum Drive Bays with Expansion Unit 8 (RX418 x 1) Compatible Drive Type* (See all supported drives) 3.5' SATA HDD/ 2.5' SATA SSD Hot Swappable Drive RJ-45 1GbE LAN Port* 4 (with Link Aggregation / Failover support) USB 3.2 Gen 1 Port* 2 eSATA Port 1 PCIe Expansion 1 x Gen3 x8 slot (x4 link) Form Factor (RU) 1U Rack Installation Support* 4-post 19' rack (Synology Rail Kit - RKM114/RKS-02)-The rail kit is sold separately System Fan 40 mm x 40 mm x 2 pcs Power Recovery Wake on LAN / WAN Power Supply Unit / Adapter 150 W Redundant Power Supply AC Input Power Voltage 100 V to 240 V AC Operating Temperature 0°C to 35°C (32°F to 95°F) 3-year hardware warranty, extendable to 5 years with EW202