• Quad-core 2.2 GHz CPU
• M.2 NVMe SSD cache support
• Scales up to 18 drives

CPU ModelAMD Ryzen V1780BCPU Quantity1CPU Architecture64-bitCPU Frequency4-core 3.35 (base) / 3.6 (turbo) GHzHardware Encryption Engine (AES-NI)

System Memory8 GB DDR4 ECC SODIMMMemory Module Pre-installed8 GB (8 GB x 1)Total Memory Slots2Maximum Memory Capacity32 GB (16 GB x 2)Notes

• Synology reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
• Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
• For more information about the recommended memory configurations, please check the of your Synology product.

Drive Bays8Maximum Drive Bays with Expansion Unit18 (DX517 x 2)M.2 Drive Slots2 (NVMe)Compatible Drive Type*

• 3.5′ SATA HDD
• 2.5′ SATA SSD
• M.2 2280 NVMe SSD

Hot Swappable Drive*Notes

• Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the . The use of non-validated components may limit certain functionality and result in data loss and system instability.
• The hot swappable drive feature is not supported by M.2 SSD slots.
• ‘Compatible drive type’ indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.

RJ-45 1GbE LAN Port*2 (with Link Aggregation / Failover support)RJ-45 10GbE LAN Port1Management LAN Port1USB 3.2 Gen 1 Port*3eSATA Port2NotesThis device’s 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.