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Strong Layer 3 switch with reliable throughput and good port mix.
DGS-3120-48TC
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D-Link 44 Gigabit electrical ports + 4 Gigabit optical multi...
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DGS-3120-48TC
- Description:
- D-Link 44 Gigabit electrical ports + 4 Gigabit optical multiplexing ports, switching capacity: 336G/3.36T, packet forwarding rate: 132Mpps/166Mpps, pure three-layer network management switch, support DHCP server, rack type　
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- Brand:
- D-Link
- GTIN:
- 799789530999
- Condition:
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DGS-3120-48TC Overview
DGS-3120-48TC is a high-performance, Layer 2+ network switch engineered with a robust architecture that maximizes throughput and network reliability. Designed with flexibility in mind, it offers a dependable AC power supply option and delivers 48 high-speed Ethernet ports alongside dedicated SFP uplink ports to ensure seamless connectivity in diverse network environments.
Featuring stacking capabilities for simplified scalability, DGS-3120-48TC supports growing network demands while maintaining low latency and consistent performance. Ideal for enterprise campuses, data centers, and SMB environments, its architecture and efficient port configuration make it a reliable solution for secure and resilient network operations.
DGS-3120-48TC price is is available on request. Get immediate quote.
Request bulk order quote for DGS-3120-48TC for additional pricing. Browse the full D-Link Aggregation Switches series or explore all D-Link products.
DGS-3120-48TC Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2
- Form Factor
- Rack-mount
- Power Consumption
- 40W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 48 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Combo
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- DGS-3120-48TC
- Uplink Configuration
- 1G
- IOS
- LAN Lite
- POE Support
- Non POE
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 48 x 10/100/1000 ports and 4 x 10/100/1000 SFP slots
- Flash Memory
- 64 MB
- Switching Capacity
- 104 Gbps
- Switching Capacity with Stacking
- N/A
- Product Name
- D-Link DGS-3120-48TC Gigabit Switch
- Height
- 1.75 inches
- Width
- 17.3 inches
- Depth
- 11.42 inches
- Weight
- 16 lbs
DGS-3120-48TC Use Case
Enterprise Campus Core/Distribution Backbone with DGS-3120-48TC-D-Link
In a multi-building corporate campus, IT deploys the rack-mount DGS-3120-48TC-D-Link (44 Gigabit electrical + 4 Gigabit SFP uplinks) as the core/distribution switch. Leveraging its pure L3 routing, 336 Gbps switching capacity and 132 Mpps forwarding rate, the switch segments traffic into VLANs, runs OSPF for dynamic failover and enforces QoS for VoIP and video. Outcome: sub-millisecond latency, high availability across 3-tier architecture, simplified network management and predictable bandwidth for mission-critical applications.
Data Center Top-of-Rack for Virtualization Clusters
A mid-sized data center installs the DGS-3120-48TC-D-Link at each rack to aggregate hypervisor hosts and storage arrays. With 44×1 GbE ports and 4×1 GbE fiber uplinks, 336 Gbps switching capacity (3.36 Tbps full duplex) and 166 Mpps forwarding, the switch delivers low-latency east-west traffic and supports VLAN trunking for multi-tenant isolation. Outcome: maximized VM density, streamlined VLAN provisioning, and line-rate throughput for database replication and backup operations.
Remote Branch Office Deployment with Built-In DHCP and Fiber Uplinks
A nationwide retail chain equips each branch closet with the rack-mounted DGS-3120-48TC-D-Link, enabling 44 Gigabit copper ports for POS, Wi-Fi APs and surveillance cameras plus 4 Gigabit SFP ports for fiber WAN. The integrated DHCP server auto-provisions endpoints on segmented VLANs and enforces ACLs at Layer 3. Outcome: plug-and-play rollout in under 30 minutes, centralized policy enforcement, resilient fiber connectivity and reduced onsite IT overhead.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| DGS-3120-48TC |  DGS-3130-30TS |  DGS-3000-52L |  DGS-3120-24TC |  DGS-3130-30S | |
|---|---|---|---|---|---|
| Depth | 11.42 inches | 11.3 inches | 11.42 inches | 11 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 32 MB | 32 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Desktop / Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.73 inches | 1.73 inches | 1.75 inches | 1.73 inches |
| IOS | LAN Lite | LAN Lite | LAN Base | LAN Lite | LAN Lite |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 | Layer 2 | Layer 2 | Layer 2 | Layer 2 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | DGS-3120-48TC | DGS-3130-30TS | DGS-3000-52L | DGS-3120-24TC | DGS-3130-30S |
| Media Type Supported | Combo | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber | Twisted Pair / Fiber | Twisted Pair / Fiber / Combo |
| Memory | 256 MB | 256 MB | 128 MB | 128 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 24 Ports | 48 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 48 x 10/100/1000 ports and 4 x 10/100/1000 SFP slots | 24 x 10/100/1000 RJ45 ports, 4 x SFP ports | 48 x 10/100/1000 ports, 4 x 1G SFP Combo ports | 24 x RJ45 ports, 4 x SFP ports | 24 x 10/100/1000 Ethernet ports, 4 x 10/100/1000 SFP ports, stacking module ports |
| Power Consumption | 40W | N/A | N/A | 28 W | 25 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | D-Link DGS-3120-48TC Gigabit Switch | DGS-3130-30TS Gigabit Smart Switch | D-Link DGS-3000-52L Smart Managed Switch | DGS-3120-24TC Smart Managed Switch | D-Link DGS-3130-30S Stackable Managed Gigabit Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | No | No | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 104 Gbps | 56 Gbps | 104 Gbps | 48 Gbps | 56 Gbps |
| Switching Capacity with Stacking | N/A | 112 Gbps | 104 Gbps | 96 Gbps | 112 Gbps |
| Uplink Configuration | 1G | 1G | 1G | 1G | 1G |
| Weight | 16 lbs | 12 lbs | 13.2 lbs | 10 lbs | 12 lbs |
| Width | 17.3 inches | 17.3 inches | 17.32 inches | 17.5 inches | 17.3 inches |
Reviews & Ratings
A
Ahsan Raza
5
Performs well in access and aggregation roles.
C
Calvin Price
5
Stable operation with no packet loss issues.
F
Faisal Nawaz
5
Easy to manage and dependable in daily use.
R
Roger Stanton
5
A solid managed switch for enterprise networks.
Questions & Answers
What port configuration does the D-Link DGS-3120-48TC offer?
The DGS-3120-48TC provides 44 10/100/1000 Mbps electrical RJ45 ports and 4 Gigabit SFP optical multiplexing ports for flexible copper and fiber connectivity.
What is the switching capacity of the DGS-3120-48TC switch?
This switch delivers up to 336 Gbps of switching capacity and a 3.36 Tbps backplane to handle high-throughput traffic without bottlenecks.
What packet forwarding rate can I expect from the DGS-3120-48TC?
It supports a packet forwarding rate of up to 132 Mpps for 64-byte packets and 166 Mpps for 512-byte packets, ensuring smooth data flow.
Does the DGS-3120-48TC support Layer 3 routing?
Yes. The DGS-3120-48TC is a pure Layer 3 managed switch with static routing, RIP, OSPF, and multicast routing capabilities.