Synology is one of the top-tier vendors in the commercial off-the-shelf (COTS) network-attached storage (NAS) market for SOHOs, SMBs, and SMEs, with QNAP being the other major player. While QNAP has a wide variety of hardware platforms to choose from in each market segment, Synology has been big on segmentation – restricting Xeon CPUs and native 10GbE to their rackmount offerings. Only their Annapurna Labs SoC-based desktop units have had 10G SFP+ support till now. That changed recently with the introduction of the DS1621xs+.

The Synology DS1621xs+ uses a Broadwell-DE Xeon-D processor (D-1527) – These SoCs are a better fit for storage platforms compared to the networking-focused Skylake-D SKUs. The 6 built-in 3.5″ hot-swappable drive bays are complemented by two M.2 2280 NVMe SSD slots. There are two 1 GbE LAN ports and a 10GBASE-T port. Two eSATA ports help the unit support two DX517 expansion chassis, allowing the unit to support a total of 16 bays.

On the software side, similar to all other x86 NAS units from Synology, the DS1621xs+ also comes with support for both ext4 and btrfs internal volumes. Synology claims read speeds of up to 3100 MBps with additional 10G NICs in the expansion slots.











Synology DS1621xs+ Specifications
Processor Intel Xeon D-1527 (4C/8T Broadwell-DE x86 Cores @ 2.20 (2.70) GHz)
RAM 8 GB DDR4-2666 ECC SODIMM (upgradeable to 16GB x 2)
Drive Bays 6x 3.5″/2.5″ SATA 6 Gbps HDD / SSD (Hot-Swappable)

(Expandable with 2x DX517 up to 16 bays in total)
Network Links 2x 1 GbE

1 x 10 GbE
External I/O Peripherals 3x USB 3.0, 2x eSATA
Expansion Slots 1x PCIe 3.0 x8
VGA / Display Out None
Full Specifications Link Synology DS1621xs+ Specifications
Price $1600 (Newegg)

It is heartening to see Synology finally introduce 10GBASE-T NAS units in the desktop form-factor. The DSM software carries some unique applications (like the Synology Office suite) that QNAP doesn’t currently have in their QTS operating system. On the other hand, QNAP’s hardware variety – particularly in terms of NBASE-T and 10GbE support even in their SOHO offerings is also attractive. Overall, it is good for consumers to have more options to choose from in the COTS NAS market.


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