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ZyXEL GS1920-48V2 48-Port Gigabit Smart Managed Switch - 50 Ports Total - 6 SFP Slots - Layer 4 - Rack-Mountable - 40W
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Product Features
Technical Overview
The GS1920-48V2 operates as a fully manageable switch with support for Gigabit Ethernet across all ports, delivering non-blocking full bandwidth of 2,000 Mbps per port. It accommodates both twisted pair and optical fiber media, with network technology covering 10/100/1000Base-T and 1000Base-X standards for versatile connectivity. The switch's 6 SFP slots are shared, allowing flexible use of mini-GBIC transceivers to adapt to varying network topologies.
Management capabilities include two modes: cloud-based via NebulaFlex™ or standalone, offering adaptability for centralized or local control. Advanced protocols such as VLAN, QoS, IGMP Snooping, Link Aggregation (LAG), IPv6, and DoS prevention are integrated to enhance network security, traffic prioritization, and scalability. The power supply is internal, with a 40W typical consumption that supports efficient operation in continuous-use scenarios.
Relevant factors for this section include Total Number of Network Ports, Modular, Port/Expansion Slot Details, Media Type Supported. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This switch combines high port density with smart management features to streamline network operations and improve performance. Its 50-port configuration, including SFP expansion, supports growing connectivity needs without requiring additional hardware, reducing complexity and cost.
Advanced Management Flexibility
Choose between cloud or standalone management with NebulaFlex™, enabling remote configuration, monitoring, and updates for distributed networks or on-premises control.
- Cloud-based management for multi-site deployments
- Standalone mode for local network control
- Free firmware upgrades and technical support
Enhanced Security and Traffic Control
Built-in features like VLAN, QoS, and DoS prevention help secure network segments, prioritize critical traffic, and mitigate attacks, ensuring reliable and safe data flow.
- VLAN for network segmentation
- QoS for traffic prioritization
- DoS prevention for attack mitigation
Deployment / Use Cases
The GS1920-48V2 is ideal for medium to large business networks where high port count, fiber connectivity, and advanced management are priorities. Its rack-mountable design and Layer 4 capabilities make it a fit for data centers, office buildings, or educational campuses requiring scalable and secure switching.
Common use cases include serving as a core switch in small to mid-sized networks, aggregating traffic from multiple access switches, or providing fiber uplinks to connect separate buildings. The TP/SFP combo ports allow seamless integration with existing copper infrastructure while offering fiber options for longer distances or higher bandwidth needs. Environmental compliance with RoHS ensures it meets regulatory standards for hazardous substance restrictions.
Core Network Aggregation
Deploy as a central switch to handle traffic from multiple departments or floors, leveraging 50 ports and SFP slots for high-density connectivity and backbone links.
Fiber Expansion Hub
Use the 6 SFP slots to connect to fiber optic networks, extending reach across campuses or between buildings while maintaining Gigabit speeds and reliability.
Physical Profile
The switch features a compact rack-mountable form factor with dimensions of 2" height, 17" width, and 5" depth, fitting standard 19-inch server racks. Its lightweight design at 6.17 pounds simplifies installation and handling, while the included rack mounting kit ensures secure placement. The environmentally friendly construction complies with RoHS, minimizing hazardous materials for sustainable IT operations.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 2" (50.80 mm), 17" (431.80 mm), 5" (127 mm), 6.17 lb (2800 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 17" (431.80 mm)
- Depth
- 5" (127 mm)
- Height
- 2" (50.80 mm)
- Weight
- 6.17 lb (2800 g)
What's in the Box
The package includes all necessary components for immediate deployment and setup.
Package contents include 48-port GbE Smart Managed Switch Power Cord Rack Mounting Kit, 48-port GbE Smart Managed Switch. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- 50 total network ports with 44 Gigabit Ethernet and 4 TP/SFP combo ports
- 6 SFP slots for fiber expansion or high-speed uplinks
- Layer 4 support for advanced traffic management and security
- Modular design with shared SFP slots for flexible connectivity
- Rack-mountable form factor with compact 2U height
- 40W power consumption for energy-efficient operation
- Lifetime hardware warranty with free firmware and technical support
- Cloud or standalone management via NebulaFlex™
- Advanced features: VLAN, QoS, IGMP Snooping, LAG, IPv6, DoS prevention
- RoHS compliant and environmentally friendly
Specifications
| Specifications | |
|---|---|
| Manufacturer | ZYXEL Communications Corp. |
| Manufacturer Part Number | GS1920-48v2 |
| Brand Name | ZYXEL |
| Product Series | GS1920 |
| Product Model | GS1920-48V2 |
| Product Name | 48-port GbE Smart Managed Switch |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 50 |
| Modular | Yes |
| Port/Expansion Slot Details | 44 x Gigabit Ethernet Network,4 x Gigabit Ethernet TP/SFP Combo,2 x Gigabit Ethernet Expansion Slot |
| Media & Performance | |
| Media Type Supported | Twisted Pair,Optical Fiber |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 10/100/1000Base-T,1000Base-X |
| I/O Expansions | |
| Total Number of Expansion Slots | 6.0 |
| Expansion Slot Type | SFP (mini-GBIC) |
| Shared SFP Slot | Yes |
| Number of SFP Slots | 6 |
| Network & Communication | |
| Layer Supported | 4 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| Power Source | Power Supply |
| Power Consumption | 40 W |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Height | 2" (50.80 mm) |
| Width | 17" (431.80 mm) |
| Depth | 5" (127 mm) |
| Weight (Approximate) | 6.17 lb (2800 g) |
| Miscellaneous | |
| Package Contents | 48-port GbE Smart Managed Switch Power Cord Rack Mounting Kit |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | Lifetime |
User Manual
FAQ
How many total ports does the ZyXEL GS1920-48V2 switch have?
The ZyXEL GS1920-48V2 has 50 total network ports. This includes 44 dedicated Gigabit Ethernet ports, 4 TP/SFP combo ports that support either twisted pair or SFP fiber connections, and 2 additional Gigabit Ethernet expansion slots. This high port count makes it suitable for dense network environments requiring extensive connectivity.
What is the purpose of the SFP slots on this switch?
The 6 SFP slots on the GS1920-48V2 allow for fiber optic expansion or high-speed uplinks using mini-GBIC transceivers. These slots are shared, meaning they can be used interchangeably with the combo ports to adapt the switch for longer-distance fiber connections or to integrate with existing fiber infrastructure, enhancing network flexibility and reach.
Does this switch support Layer 4 functionality?
Yes, the GS1920-48V2 supports Layer 4 switching. This enables advanced features such as traffic management based on transport layer protocols (e.g., TCP/UDP ports), quality of service (QoS) for prioritizing critical applications, and enhanced security controls like access lists and DoS prevention, making it capable of handling complex network demands.
What management options are available for this switch?
This switch offers two management modes: cloud-based via ZyXEL's NebulaFlex™ platform or standalone local management. Cloud management allows for remote configuration, monitoring, and updates across multiple sites, while standalone mode provides direct control for on-premises networks. Both options include free firmware upgrades and technical support.
Is the ZyXEL GS1920-48V2 rack-mountable?
Yes, the GS1920-48V2 is designed for rack mounting with a form factor that fits standard 19-inch server racks. It has a height of 2 inches (2U), width of 17 inches, and depth of 5 inches, and includes a rack mounting kit in the package for easy installation in data centers or network closets.
What warranty and support come with this switch?
The switch comes with a lifetime hardware warranty, covering defects in materials and workmanship for the product's lifespan. It also includes free firmware upgrade support and free technical assistance, ensuring long-term reliability and access to the latest features and security updates without additional cost.
| Qty | Price | Available |
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