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48-port UPOE LAN Base switch delivers stable performance and reliable PoE.
WS-C3750X-48U-L
CATALYST 3750X 48PORT 10/100/1000 ENET STACKABLE
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WS-C3750X-48U-L
- Description:
- CATALYST 3750X 48PORT 10/100/1000 ENET STACKABLE
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- Brand:
- Cisco
- GTIN:
- 882658533389
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WS-C3750X-48U-L Overview
WS-C3750X-48U-L is a stackable enterprise-class switch engineered with a robust, modular architecture that delivers high performance, extensive scalability, and flexible connectivity for evolving network demands. It features 48 fixed 10/100/1000 Ethernet ports combined with 4 fixed 1G SFP uplink interfaces, optimized for compact rack-mount deployments and enhanced stacking via Cisco FlexStack-Plus technology.
WS-C3750X-48U-L supports both Layer 2 switching and Layer 3 routing with the IP Lite IOS, providing efficient traffic management and versatile network design options. Its integrated AC power supply, non-PoE operation, and high switching capacity make it ideally suited for campus LANs, branch offices, and mid-sized enterprise environments.
WS-C3750X-48U-L price is is available on request. Get immediate quote.
Request bulk order quote for WS-C3750X-48U-L for additional pricing. Browse the full Catalyst 3750 Switches series or explore all Cisco products.
WS-C3750X-48U-L Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 240W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 4 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Twisted Pair / Fiber / Combo
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- WS-C3750X-48U-L
- Uplink Configuration
- 1G
- IOS
- IP 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 fixed 10/100/1000 Ethernet ports with 4 fixed 1G SFP uplink interfaces
- Flash Memory
- 64 MB
- Switching Capacity
- 176 Gbps
- Switching Capacity with Stacking
- 160 Gbps
- Product Name
- Cisco Catalyst 3750-X 48-Port Uplink Switch (WS-C3750X-48U-L)
- Height
- 1.73 inches
- Width
- 17.5 inches
- Depth
- 18.0 inches
- Weight
- 31.8 lbs
WS-C3750X-48U-L Use Case
Campus LAN Aggregation & PoE+ Delivery for Unified Communications
In a large enterprise wiring closet, the WS-C3750X-48U-L stackable switch aggregates 48 10/100/1000 PoE+ ports to power VoIP phones and wireless access points. By leveraging StackWise™ technology and a 740W PoE+ budget per switch, IT teams achieve sub-millisecond failover and centralized power management, resulting in uninterrupted voice/video collaboration and simplified infrastructure scaling.
High-Density Top-of-Rack for Virtualized Data Center
Deployed at the top of a 42U rack, the WS-C3750X-48U-L delivers 48 Gigabit Ethernet uplinks to hypervisor clusters and SAN gateways. Its non-blocking 176 Gbps switching fabric and hot-swappable SFP uplinks ensure low-latency traffic flow and seamless expansion. Outcome: streamlined VM migration, predictable East-West throughput, and reduced single-point failure risk in virtualized environments.
Secure IoT Edge Hub in Smart Building Environments
In a multi-tenant smart facility, the WS-C3750X-48U-L aggregates IP cameras, environmental sensors and access controllers over 48 PoE+ ports. Advanced QoS, Dynamic ARP Inspection and flexible VLAN segmentation isolate critical building systems. Benefit: centralized power delivery, real-time device monitoring, and hardened network security for scalable IoT deployments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 WS-C3750X-48U-L |  WS-C3750X-48T-L |  WS-C3750X-24T-L |  WS-C3750X-48T-S |  WS-C3750X-24P-S | |
|---|---|---|---|---|---|
| Depth | 18.0 inches | 16.1 inches | 12.9 inches | 15.5 inches | 11.8 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 256 MB | 64 MB | 256 MB | 128 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 inches | 1.73 inches | 1.75 inches | 1.73 inches | 1.73 inches |
| IOS | IP Lite | LAN Base | LAN Base | LAN Base | LAN Base |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | WS-C3750X-48U-L | WS-C3750X-48T-L | WS-C3750X-24T-L | WS-C3750X-48T-S | WS-C3750X-24P-S |
| Media Type Supported | Twisted Pair / Fiber / Combo | Twisted Pair | Twisted Pair | Combo | Twisted Pair / Fiber / Combo |
| Memory | 256 MB | 512 MB | 256 MB | 512 MB | 512 MB |
| Number of Downlink Ports | 4 Ports | 48 Ports | 24 Ports | N/A | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | POE+ |
| Port/Expansion Slot Details | 48 fixed 10/100/1000 Ethernet ports with 4 fixed 1G SFP uplink interfaces | 48 Ethernet ports, 4 SFP uplink ports | 24 Ethernet 10/100 ports with 4 fixed 1G SFP uplink ports | 48 x 10/100/1000 Ethernet ports, 4 x 1G SFP uplink ports | 24 PoE+ ports and 4 SFP uplink ports |
| Power Consumption | 240W | 350 W | N/A | 235W | 365 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply / N/A | AC Power Supply | AC Power Supply |
| Product Name | Cisco Catalyst 3750-X 48-Port Uplink Switch (WS-C3750X-48U-L) | Cisco Catalyst 3750X 48-Port 10/100/1000 Ethernet Switch | Cisco Catalyst 3750X-24T-L | Cisco Catalyst 3750-X 48-Port 10/100/1000 Ethernet Switch with LAN Base Software | Cisco Catalyst 3750X-24 Power over Ethernet 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 | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 176 Gbps | 128 Gbps | 176 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 160 Gbps | 480 Gbps | 480 Gbps | 480 Gbps | 160 Gbps |
| Uplink Configuration | 1G | 1G | 1G | 1G | 1G |
| Weight | 31.8 lbs | 29.3 lbs | 25.4 lbs | 25 lbs | 26 lbs |
| Width | 17.5 inches | 17.2 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
E
Ethan Walsh
5
High-density deployment made simple and predictable.
H
Hannah Grant
5
Cisco build ensures long-term reliability.
L
Lucas Carter
4
Easy configuration and minimal downtime.
I
Isabel Ross
4
Ideal for enterprise edge and access layer.
Questions & Answers
What is the Cisco Catalyst WS-C3750X-48U-L?
The Catalyst WS-C3750X-48U-L is a 48-port Gigabit Ethernet stackable switch with LAN Base software for enterprise access-layer deployments.
How many Gigabit Ethernet ports and uplinks does the WS-C3750X-48U-L offer?
It includes 48 10/100/1000Mbps RJ-45 ports and four 1G SFP uplink ports for fiber or copper connectivity.
Does the Catalyst 3750X 48U support PoE or PoE+?
No. The WS-C3750X-48U-L does not support PoE; use the WS-C3750X-48P-L series for power over Ethernet.
What stacking technology does the WS-C3750X-48U-L use?
It uses Cisco StackWise-Plus, allowing up to nine switches to form a single logical stack with unified management.
What is the maximum stacking bandwidth of the Catalyst 3750X 48U?
StackWise-Plus delivers up to 64 Gbps of full-duplex stacking bandwidth per switch stack.
Which Cisco IOS image ships on the WS-C3750X-48U-L?
It ships with the LAN Base IOS image, providing Layer 2 switching, static routing, VLAN, and basic multicast services.
Can I upgrade the WS-C3750X-48U-L to advanced IP services?
Yes. You can license-upgrade to IP Base or IP Services IOS to enable advanced routing, multicast, and security features.
What switching capacity and forwarding rate does the WS-C3750X-48U-L provide?
It delivers 176 Gbps of switching capacity and a forwarding rate of up to 130.95 Mpps.
Does the WS-C3750X-48U-L support IPv6 routing?
Yes. With the appropriate IOS license, it supports IPv6 forwarding and basic IPv6 routing protocols.
How many VLANs can the Catalyst 3750X 48U handle?
It supports up to 4,094 VLANs for robust network segmentation and isolation.
Does the WS-C3750X-48U-L support QoS?
Yes. It supports class-based QoS, ACLs, and policy-based shaping for precise traffic prioritization.
Which power supplies are compatible with the Catalyst 3750X 48U?
It includes an internal 460W PSU and supports optional redundant PWR-C2-550WAC or PWR-C2-750WAC units.
What warranty and support options are available for the WS-C3750X-48U-L?
Cisco offers a limited lifetime hardware warranty; SMARTnet provides expedited replacement and software updates.
What are the typical use cases for the Catalyst 3750X 48U stackable switch?
Ideal for campus access, branch offices, and enterprise edge deployments requiring scalable gigabit stacking.
How can I configure security features on the WS-C3750X-48U-L?
It supports 802.1X, RADIUS/TACACS+, Dynamic ARP Inspection, and DHCP snooping to enforce network access control.
What uplink modules are supported by the Catalyst 3750X 48U?
Compatible transceivers include Cisco 1G/10G SFP/SFP+ modules such as GLC-LH-SM, GLC-SX-MMD, and X2-10GB-SR.
What are the physical dimensions and power consumption of the WS-C3750X-48U-L?
Chassis dimensions are 1.75H x 17.5W x 18.1D inches; typical power draw is ~100W idle and up to 220W under full load.