Synology DiskStation DS3622xs+

Key Features

Processor: Intel Xeon D-1531, 6 cores / 12 threads, base frequency 2.2 GHz, Turbo up to ~2.7 GHz

Memory (RAM) Included: 16 GB DDR4 ECC (2 × 8 GB)

Maximum: up to 48 GB (4 slots)

Number of drive slots: 12 bays (for 3.5" or 2.5" SATA HDD / SSD)

Expansion: Up to 36 drives via 2 DX1222 expansion units

Interfaces / Network: 2 × 10 GbE RJ-45 + 2 × 1 GbE RJ-45 (with link aggregation / failover capabilities)

1 PCIe Gen3 x8 slot for add-on cards (e.g. 25 GbE, additional network interfaces or M.2 SSD cache)

2 × mini-SAS / expansion ports for DX1222 expansions

2 × USB 3.2 Gen1 (Type-A)

Performance: Up to ~4,719 MB/s sequential read

Up to ~260,691 IOPS random 4K read

Write speeds (sequential) over ~2,400 MB/s according to some estimates

Power / Power Consumption Power Supply: 100-240 V AC, 550 W

Consumption: ~94.4 W in active mode, ~54.3 W in HDD hibernation

Dimensions / Weight / Noise Dimensions: 270 × 300 × 340 mm

Weight: Approximately 9.8 kg

Noise Level: ~25 dB(A)

Features, Functions and Software

Snapshot / Versioning / Data Protection: Supports folder and LUN snapshots, allows up to level rollback.

HA (High Availability): Active-Passive cluster can be set up with another DS3622xs+

Cache / Acceleration: M.2 NVMe SSDs can be used for caching (with adapters) or SAT5200 SATA SSDs can be added without sacrificing data slots.

Network cards: Ability to add 10/25 GbE NIC cards, including combined with M.2 slots.

Infrastructure roles: can be used as a file server (SMB, NFS), iSCSI / block storage, base for virtual machines and containers, surveillance (up to ~90 IP cameras) with licenses

Benefits

Very high performance for NAS class, suitable for busy environments

ECC memory and reliable Xeon processor – good for long-term stability

High flexibility via PCIe slot and 10/25 GbE network capabilities

Good scalability — up to 36 disks

Rich software ecosystem (DSM), multiple packages for backup, virtualization, synchronization, surveillance, etc.