DiskStation® DS1825+ Features: Dependable Performance Up to 2,239/1,573 MB/s sequential read/write throughput supports officewide applications Fast and Flexible Networking Built-in 2.5GbE ports, supports 10GbE SFP+/RJ-45 and 25GbE SFP28 adapter cards Simple Expansion Scale up on demand to with two DX525 expansion units for up to 18 drive bays and 360 TB of raw storage Comprehensive Backups Protect your IT infrastructure with licensefree solutions for backup, replication, and recovery Long-Term Support Backed by Synology's 3-year limited hardware warranty, extendable to 5 years in select markets Specifications: CPU CPU Model AMD Ryzen V1500B CPU Quantity 1 CPU Core 4 CPU Architecture 64-bit CPU Frequency 2.2 GHz Hardware Encryption Engine Yes Memory System Memory 8 GB DDR4 ECC SODIMM Memory Module Pre-installed 8 GB (8 GB x 1) Total Memory Slots 2 Maximum Memory Capacity 32 GB (16 GB x 2) Storage Drive Bays 8 Maximum Drive Bays with Expansion Unit 18 (DX525 x 2) M.2 Drive Slots 2 (NVMe) Drive Type 3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD Hot Swappable Drive Yes External Ports RJ-45 2.5GbE LAN Port 2 USB 3.2 Gen 1 Port 3 Expansion Port 2 PCIe PCIe Expansion 1 x Gen3 x8 slot (x4 link) Appearance Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm Weight 6 kg Others System Fan 120 mm x 120 mm x 25 mm x 2 pcs AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS Warranty 3-year hardware warranty