Synology DiskStation DS1821+. Supported storage drive types: HDD & SSD, Supported storage drive interfaces: M.2, Serial ATA, Storage drive sizes supported: 2.5,3.5,M.2. Processor family: AMD Ryzen, Processor manufacturer: AMD, Processor model: V1500B. Internal memory: 4 GB, Internal memory type: DDR4, Maximum RAM supported: 32 GB. Ethernet LAN data rates: 1000 Mbit/s, Supported network protocols: SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV. Chassis type: Tower, Cooling type: Active, Product colour: Black
- Large Enterprise Business NAS Tower Black
- DiskStation Manager
- Number of storage drives supported: 8 HDD & SSD M.2, Serial ATA
- AMD Ryzen V1500B 2.2 GHz
- 4 DDR4 Memory slots: 2 SO-DIMM ECC
- Ethernet LAN iSCSI support Wake-on-LAN ready
- Cooling type: Active
- Backup features: Cloud, iSCSI LUN 250 W
- AMD Ryzen Quad-core 2.2 GHz
- Dual M.2 2280 slots for NVMe Cache
- 113K 4K random read IOPS
- Expand up to 18 drives with two DX517 expansion units