Synology DS1621+ DiskStation NAS - High Performance Storage

The Synology DS1621+ is the answer to a specific question: what happens when a workgroup NAS is powered by a real desktop-class CPU instead of an embedded Atom derivative? The AMD Ryzen V1500B at its core changes the performance ceiling fundamentally — 174% higher 4K random read IOPS and 76% faster sequential write speeds over its predecessor aren't marketing rounding errors, they reflect the difference between a processor that can handle concurrent requests without queuing and one that can't. For environments running virtual machines, multi-user SMB shares, iSCSI LUNs, or containerized applications through DSM's Docker integration, that CPU headroom is the difference between a NAS that keeps up and one that becomes the bottleneck.

The hardware architecture is built for longevity. The dual M.2 NVMe slots for SSD caching sit outside the drive bay count — a deliberate design choice that lets you add cache acceleration without trading storage capacity. The single PCIe 3.0 slot accepts Synology's 10GbE NICs, which is the logical next upgrade once the CPU stops being the constraint. And the two eSATA expansion ports support up to two DX517 units, growing the system to 16 drives without a chassis replacement. Synology's DSM platform ties it together with a no-additional-cost backup suite that covers cloud replication, bare-metal Windows backup, VM protection, and snapshot-based recovery — making the DS1621+ a credible alternative to dedicated backup appliances for small-to-medium environments that need enterprise data protection without enterprise licensing fees.