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Name:
WS-C3750X-48U-S
- Description:
- CATALYST 3750X 48PORT UPOE IP BASE
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3 Year Extended Warranty
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All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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WS-C3750X-48U-S Overview
WS-C3750X-48U-S is a high-performance, stackable Cisco Catalyst switch built on a resilient architecture designed for modern enterprise networks. It features 48 fixed 10/100/1000 Ethernet ports and 4 dedicated 1G SFP uplink ports, delivering reliable connectivity with scalability in mind.
WS-C3750X-48U-S offers flexible power options, proven stacking technology, and robust performance suitable for campus LANs, branch offices, and high-density wiring closets. Its advanced architecture and non-POE design make it ideal for environments requiring consistent throughput, efficient management, and seamless integration into existing network infrastructures.
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WS-C3750X-48U-S Specifications
| Product Type | Switch |
| Power Source | Redundant Power Supply / AC Power Supply / N/A |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | 370W |
| 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 | Yes |
| Manufacturer Part Number | WS-C3750X-48U-S |
| Uplink Configuration | 1G |
| IOS | IP Services |
| POE Support | Non POE |
| SFP Ports | 4 SFP Ports |
| Memory | 512 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | 48 Ethernet ports and 4 SFP uplink ports |
| Flash Memory | 256 MB |
| Switching Capacity | 176 Gbps |
| Switching Capacity With Stacking | 320 Gbps |
| Product Name | Cisco Catalyst 3750X 48-Port 10/100/1000 Unified Access Switch |
| Height | 1.73 inches |
| Width | 17.5 inches |
| Depth | 15.8 inches |
| Weight | 42 lbs |
WS-C3750X-48U-S Use Case
High-Density Campus Access Layer for Unified Communications
Scenario: A 500-user enterprise campus requires consolidated 802.11ac Wave 2 APs and IP telephony. Solution: Deploy a stack of WS-C3750X-48U-S Catalyst 3750X 48-Port UPOE IP Base switches with 740 W UPOE power budget, StackWise Plus 480 Gbps interconnect and IP Base routing. Benefit: Simplified management, deterministic QoS for voice and wireless, seamless scalability and centralized power budgeting.
Converged Video Surveillance & Security System
Scenario: A smart building installs 4K PTZ PoE+ cameras, door controllers and intrusion sensors. Solution: Use WS-C3750X-48U-S Catalyst 3750X 48-Port UPOE IP Base with flexible NetFlow, ACL segmentation and dual 10 Gbps SFP+ uplinks. Benefit: High-density PoE for critical security devices, reduced cabling, granular traffic and power control, plus hardened network segmentation.
Branch Office Aggregation with Resilient PoE & Routing
Scenario: A retail chain’s 50 branch offices host PoS terminals, digital signage and guest Wi-Fi. Solution: Deploy WS-C3750X-48U-S Catalyst 3750X 48-Port UPOE IP Base using StackPower redundancy, Intelligent QoS and IP Base dynamic routing. Benefit: Continuous uptime with power-fail resilience, predictable performance under load, streamlined remote management and rapid service restoration.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | 18.9 inches | 11.13 inches | 15.8 inches | 16.1 inches | 28.9 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 64 MB | 256 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.73 inches | 1.73 inches | 1.73 inches | 1.73 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Base | IP Services | LAN Base | LAN Base |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | WS-C3750X-48T-E | WS-C3750X-24U-L | WS-C3750X-48U-S | WS-C3750X-24P-L | WS-C3750X-48P-L |
| Media Type Supported | Combo | Twisted Pair / Fiber | Combo | Twisted Pair | Twisted Pair / Fiber |
| Memory | 512 MB | 256 MB | 512 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 24 Ports | 48 Ports | 24 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | POE+ | POE+ |
| Port/Expansion Slot Details | 48 Ethernet ports, 4 SFP uplink ports | 24 Ethernet ports with 4 SFP uplink ports | 48 Ethernet ports and 4 SFP uplink ports | 24 PoE ports with 4 SFP uplink ports and FlexStack-Plus stacking support | 48 Ethernet ports + 4 SFP uplink ports; supports FlexStack-Plus stacking |
| Power Consumption | 365 W | N/A | 370W | N/A | 365 W |
| Power Source | Redundant Power Supply / AC Power Supply / N/A | AC Power Supply | Redundant Power Supply / AC Power Supply / N/A | AC Power Supply | AC Power Supply |
| Product Name | Catalyst 3750-X 48-Port 10/100/1000, 4 x 1G SFP, LAN Base | Cisco Catalyst 3750-X 24U-L | Cisco Catalyst 3750X 48-Port 10/100/1000 Unified Access Switch | Cisco Catalyst WS-C3750X-24P-L | Cisco Catalyst WS-C3750X-48P-L |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | No | Yes | No | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 128 Gbps | 176 Gbps | 160 Gbps | 160 Gbps |
| Switching Capacity with Stacking | 160 Gbps | 160 Gbps | 320 Gbps | 160 Gbps | 320 Gbps |
| Uplink Configuration | 1G | 1G | 1G | 1G | 1G |
| Weight | 25 lbs | 23 lbs | 42 lbs | 29 lbs | 49.8 lbs |
| Width | 17.5 inches | 17.32 inches | 17.5 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the Cisco Catalyst WS-C3750X-48U-S switch?
A
The Cisco Catalyst WS-C3750X-48U-S is a 48-port Gigabit Ethernet stackable switch with Cisco UPoE and IP Base feature set, designed for enterprise access layer deployments.
Q
How many ports and what interfaces does the WS-C3750X-48U-S offer?
A
It offers 48 Gigabit Ethernet ports with UPoE support plus four dual-purpose 1G/10G SFP+ uplink ports for flexible fiber connectivity.
Q
What is Cisco UPoE on the Catalyst 3750X?
A
Cisco UPoE (Universal Power over Ethernet) delivers up to 60W per port, enabling high-power devices such as IP cameras, wireless access points and digital signage.
Q
What is the IP Base feature license?
A
The IP Base license includes essential Layer 3 routing protocols (OSPF, EIGRP stub, static routing), security, QoS, and advanced management features for enterprise access networks.
Q
How does StackWise Plus enhance performance?
A
Cisco StackWise Plus technology allows up to nine Catalyst 3750X switches to operate as a single logical unit with 64 Gbps stacking bandwidth for improved resiliency and simplified management.
Q
What is the switching capacity and forwarding rate?
A
The WS-C3750X-48U-S delivers up to 176 Gbps switching capacity and a forwarding rate of 130.95 Mpps for wire-speed performance.
Q
What is the total PoE power budget for the switch?
A
With dual internal power supplies, the switch supports a maximum PoE budget of 810W, scalable for high-density deployments.
Q
Does the WS-C3750X-48U-S support redundant power supplies?
A
Yes, it includes two integrated, load-sharing power supplies for redundancy and nonstop PoE operation during maintenance or failures.
Q
What management options are available?
A
Manage the switch via Cisco IOS CLI, web-based GUI, SNMP, Cisco Prime Infrastructure or DNA Center for centralized automation and visibility.
Q
Which Layer 3 routing protocols are supported?
A
The IP Base license supports static routing, OSPF, EIGRP stub, HSRP and VRRP for resilient, scalable network topologies.
Q
What security features are built-in?
A
It offers 802.1X port-based access control, DHCP snooping, IP Source Guard, dynamic ARP inspection and ACL enforcement to secure the network edge.
Q
How does QoS improve network performance?
A
Cisco Catalyst 3750X delivers advanced QoS with eight hardware queues, traffic shaping, policing and queue scheduling to prioritize voice, video and data traffic.
Q
Is the switch energy-efficient?
A
Yes, it incorporates Energy Efficient Ethernet, low-power ASICs and smart fan control to reduce power consumption and operating costs.
Q
What are typical use cases for this switch?
A
Ideal for enterprise campus access, converged IP telephony, wireless backhaul and high-density PoE applications in indoor wiring closets.
Q
Which modules and transceivers are compatible?
A
The 3750X supports Cisco SFP and SFP+ modules (1G/10G), including GLC-SX, GLC-LX, SFP-10G-SR and CWDM SFPs for diverse fiber options.
Q
What warranty and support options are available?
A
It includes a limited lifetime hardware warranty and access to Cisco Technical Assistance Center (TAC), with optional SMARTnet service for advanced support.
