Synology DiskStation DS1621+ 6-Bay NAS (Diskless)

Key Features:

Powerful Quad-Core Performance – Equipped with an AMD Ryzen V1500B 2.2 GHz quad-core 64-bit CPU and hardware AES-NI encryption for secure, efficient performance.

Expandable High-Capacity Storage – 6 native drive bays with support for up to 16 bays using two DX517 expansion units, allowing up to 108 TB per volume (raw capacity).

High-Speed File Access – 4 × 1GbE LAN ports with Link Aggregation and Failover support, delivering faster network throughput and improved redundancy.

Future-Proof Upgradeability – PCIe Gen3 x8 slot (x4 link) for adding 10GbE network cards or other PCIe expansion options.

NVMe SSD Cache Support – Dual M.2 2280 NVMe slots for cache acceleration, improving I/O performance for demanding applications.

Versatile Storage Compatibility – Supports 3.5" SATA HDDs, 2.5" SATA HDDs/SSDs, and NVMe SSDs for flexible configurations.

Efficient File Management & Sharing – Web-based File Station for secure, drag-and-drop file operations with support for AFP, SMB, NFS, FTP, iSCSI, and WebDAV.

Virtualization Ready – Fully certified for VMware vSphere 6, Windows ODX, and OpenStack Cinder, enabling smooth integration with enterprise virtualization environments.

Multiple Backup Solutions – Ideal for endpoint backup, hybrid cloud backup, and snapshot replication for data protection and disaster recovery.

Energy Efficient & Quiet – Consumes just 51.22 W during access and 25.27 W in HDD hibernation with a low noise level of 25.2 dB(A).

Flexible File System Options – Supports Btrfs (with advanced snapshot capabilities) and EXT4 internally, with full external drive compatibility including NTFS, FAT, HFS+, and exFAT (license required).

Reliable Cooling & Design – Dual 92 mm fans with multiple cooling modes and easy fan replacement for consistent performance and longevity.

Comprehensive Packaging – Includes main unit, accessory pack, AC power cord, 2 × RJ-45 LAN cables, and quick installation guide.