Synology DS923+ 4-Bay NAS Enclosure Ryzen 16GB — main product image

Synology DS923+ 4-Bay NAS Enclosure Ryzen 16GB

Synology

Synology DS923+ 4-Bay NAS Enclosure Ryzen 16GB

Name: Synology DS923+ 4-Bay NAS Enclosure Ryzen 16GB
Brand: Synology
SKU: DS923+

★★★★★3.6 (7 reviews)

A dual-core AMD Ryzen R1600, 16GB DDR4, and NVMe SSD caching combine to make the DS923+ the most capable 4-bay NAS Synology has ever shipped at this form factor.

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Overview

The Synology DS923+ is a 4-bay NAS enclosure built around the AMD Ryzen R1600 dual-core processor (up to 3.1 GHz) paired with 16GB DDR4 RAM. What those numbers mean in practice: this is a NAS that can run Synology's full DSM package ecosystem — Active Backup for Business, Surveillance Station with multiple camera streams, Synology Drive with concurrent users, and Docker containers — simultaneously without the CPU becoming the bottleneck. That distinguishes it from the Celeron J-series units that saturate under three or four concurrent workloads. The two M.2 NVMe slots don't expand your storage pool, but they allow tiered caching that collapses the latency gap between spinning HDDs and the R1600's processing speed, making random I/O feel significantly more responsive under mixed workloads.

The DS923+ targets small businesses and prosumer home labs that have outgrown single-purpose NAS units or consumer-grade cloud backup solutions. It ships without drives, which is a feature, not an omission — you specify the drives for your workload (surveillance-optimized, NAS-rated CMR, or enterprise SAS via the eSATA expansion port). The dual 1GbE ports handle multi-client office environments effectively via link aggregation, and the PCIe 3.0 x2 slot holds a clear upgrade path to 10GbE when your workload demands it. DSM 7.x continues to be the most mature NAS operating system available, and the R1600 provides enough compute to keep that software stack running without compromise.

Specifications

CPU

AMD Ryzen R1600 Dual-Core, up to 3.1 GHz

RAM

16GB DDR4

Drive Bays

4 x 3.5" SATA III (no HDD included)

M.2 Slots

2 x NVMe SSD (cache only)

LAN Ports

2 x 1GbE (Link Aggregation / Failover)

USB Ports

2 x USB 3.2 Gen 1

eSATA Port

Expansion Slot

PCIe 3.0 x2 (10GbE card compatible)

Brand

Synology

Model

DS923+

Pros & Cons

👍 Pros

AMD Ryzen R1600 delivers significantly more CPU headroom than Celeron-class NAS processors, enabling simultaneous Docker, VM, and transcoding workloads without contention.
16GB DDR4 RAM pre-installed supports memory-intensive DSM packages — Surveillance Station, Active Backup, and Synology Drive — without an immediate upgrade purchase.
Dual M.2 NVMe slots allow read/write SSD caching that dramatically reduces latency on random I/O workloads against spinning HDDs.
Dual 1GbE with link aggregation provides both throughput scaling across multiple clients and automatic failover on a single cable loss.
PCIe 3.0 x2 expansion slot enables a future 10GbE upgrade path without replacing the enclosure.

👎 Cons

Native 1GbE ceiling means a single client maxes out around 110–115 MB/s sequential — insufficient for 4K multicam editing workflows without the optional 10GbE card.
M.2 slots are cache-only; they cannot be added to a storage pool, so they provide no usable capacity expansion.
Four-bay ceiling limits raw capacity — at 20TB per drive, maximum usable storage in RAID 5 is approximately 54TB, which may constrain long-horizon storage planning.
DSM's SSD cache algorithm requires a warm-up period before cache efficiency peaks — cold workloads see no benefit until access patterns are established.

Frequently Asked Questions

What CPU does the DS923+ use, and how does it compare to Intel-based NAS processors?

The DS923+ runs an AMD Ryzen R1600 dual-core clocked up to 3.1 GHz — a notable step up from the Celeron-class silicon found in competing budget NAS units. The R1600 provides meaningful headroom for concurrent transcoding, VM workloads, and Docker containers without throttling under sustained load.

Can the DS923+ use both M.2 NVMe slots simultaneously, and for what purpose?

Yes. Both M.2 2280 slots support NVMe SSDs for read/write caching (Synology SNV3500 series recommended, but compatible third-party drives work). This does not add to your usable storage pool — they accelerate I/O to the spinning HDDs in the four SATA bays by caching frequently accessed data.

Does the DS923+ support 10GbE networking?

Not natively — the base unit ships with two 1GbE ports. However, Synology offers an optional E10G22-T1-Mini PCIe 3.0 x2 expansion card that adds a 10GbE port. If your workload involves large sequential transfers across multiple clients, that upgrade eliminates the LAN bottleneck entirely.

How does link aggregation work on the two 1GbE ports?

The dual 1GbE ports support IEEE 802.3ad LACP (Active Backup, Balance RR, and Adaptive Load Balancing modes via DSM). In practice, this doubles aggregate throughput to multi-client environments and provides failover redundancy — not a 2Gbps pipe to a single client.

What RAID configurations are supported across the four bays?

DSM supports RAID 0, 1, 5, 6, 10, JBOD, and Synology Hybrid RAID (SHR). With four bays, RAID 5 is the most common deployment — three drives of usable capacity with single-drive fault tolerance. SHR-2 with four drives gives dual-drive fault tolerance if data integrity is the priority.