Synology DS923+ vs DS423+
The Synology DS923+ and DS423+ are both enterprise-grade NAS systems, but differ significantly in scale and performance. The DS923+ is a 9-bay flagship designed for larger deployments, while the DS423+ is a compact 4-bay model suited for small offices and remote sites.
Synology DS923+
A 9-bay NAS appliance with dual-core Intel Celeron processor, designed for medium to large organizations requiring higher storage capacity and performance.
Drive Bays
9
Processor
Intel Celeron N5105
Memory
4GB DDR4 (expandable to 32GB)
Network Ports
Dual 2.5GbE RJ45
Max Raw Capacity
108TB
Pros
- 9 bays provide up to 108TB raw capacity
- Dual 2.5GbE ports for faster network throughput
- Stronger processor for demanding workloads
Cons
- Higher power consumption and cooling requirements
- Larger physical footprint requires more rack space
- Significantly higher acquisition cost
Synology DS423+
A compact 4-bay NAS with quad-core Intel Celeron processor, optimized for small businesses and remote office deployments with moderate storage needs.
Drive Bays
4
Processor
Intel Celeron N5105
Memory
4GB DDR4 (expandable to 32GB)
Network Port
Single 1GbE RJ45
Max Raw Capacity
48TB
Pros
- Compact 4-bay design fits small spaces and branch offices
- Lower power consumption and quieter operation
- More affordable entry point for small deployments
Cons
- Limited to 4 drives reduces maximum capacity to 48TB raw
- Single 1GbE port limits network performance compared to dual 2.5GbE
- Less suitable for high-performance or large-scale workloads
Synology DS923+ wins
DS923+ delivers superior raw capacity, faster networking, and stronger performance for organizations needing enterprise-scale NAS, making it the more capable and future-proof choice for growing deployments.
Synology DS923+
Medium to large organizations, centralized backup, high-throughput file sharing, and virtualization environments.
Synology DS423+
Small businesses, branch offices, remote sites, and budget-conscious deployments with modest storage and performance needs.
Capacity & Performance Comparison
Raw Storage Capacity
DS923+ supports 9 bays versus 4 bays on DS423+, enabling 2.25x greater maximum capacity.
Network Throughput
DS923+ features dual 2.5GbE ports enabling faster data transfer than DS423+'s single 1GbE port.
CPU Performance
Both use Intel Celeron N5105 processors with comparable specs; real-world performance depends on workload.
Space Efficiency
DS423+ is 4-bay compact design ideal for tight spaces; DS923+ requires significantly more footprint.
Power Efficiency
DS423+ consumes less power and generates less heat due to 4-bay form factor versus DS923+'s larger architecture.
Cost-to-Capacity Ratio
DS423+ offers better value for small deployments; DS923+ requires larger upfront investment despite economies of scale.
Specifications & Technical Comparison
| Aspect | Synology DS923+ | Synology DS423+ |
|---|---|---|
| Form Factor | 19-inch 2U rack mount | Desktop / 1U compact |
| Drive Bays | 9 × 3.5-inch SATA | 4 × 3.5-inch SATA |
| Network Connectivity | Dual 2.5GbE, USB 3.2, eSATA | Single 1GbE, USB 3.2 |
| Maximum RAM | 32GB DDR4 | 32GB DDR4 |
| Typical Power Draw | 65–95W operating | 40–65W operating |
| Intended Use Case | Medium/large enterprises, central backup | Small business, branch offices, remote sites |
When to Choose Each Model
Choose the DS923+ if your organization requires high capacity, fast network throughput, and handles multi-user or high-IOPS workloads typical of enterprise environments. Opt for the DS423+ if you prioritize space efficiency, lower operating costs, and need reliable NAS functionality for small teams or branch locations with modest storage demands.
When to choose each
Choose Synology DS923+ if…
Medium to large organizations, centralized backup, high-throughput file sharing, and virtualization environments.
Choose Synology DS423+ if…
Small businesses, branch offices, remote sites, and budget-conscious deployments with modest storage and performance needs.
Frequently Asked Questions
The DS423+ is ideal for small offices due to its compact footprint, lower power consumption, and cost-effectiveness. The single 1GbE network connection is adequate for typical file sharing and backup tasks in small team environments.
The DS923+ offers 9 drive bays and dual 2.5GbE ports for enterprise-scale deployments, while the DS423+ provides 4 bays and a single 1GbE port optimized for small spaces and branch offices. Capacity potential differs by 2.25x, and network throughput on DS923+ is roughly 2.5x faster.
No; the DS423+ is fixed with a single 1GbE RJ45 port and cannot be upgraded to 2.5GbE or 10GbE. If high-speed networking is critical, the DS923+ or higher-end models are necessary.
Sources & references
Suggested sources to verify product details, pricing, reviews, and specifications.
- ReferenceSynology DiskStation DS923+ Review | PCMag
Armed with an AMD Ryzen processor, the DS923+ showed <strong>speedy file transfer performance</strong> in our tests, and
- ReferenceSynology DS923+ Review - StorageReview.com
First up are the enterprise workloads, where we measured a long sample of random 4K performance with 100% write and 100%
- ReferenceSynology DS923+ Review: The Best NAS Speeds to Date | Dong Knows Tech
Here’s the bottom line: If you’re looking for a robust 4-bay NAS server that gives you more than just the option to add