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10G IP Services switch delivered low-latency performance.
WS-C3850-12XS-E
CATALYST 3850 12PORT 10G FIBER SWITCH IP SERVICES
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Name:
WS-C3850-12XS-E
- Description:
- CATALYST 3850 12PORT 10G FIBER SWITCH IP SERVICES
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818250748739
- Condition:
- Warranty:
- 3
- List Price:
$32,203.00
- Price:
$11,523.0064.2% off
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1
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WS-C3850-12XS-E Overview
WS-C3850-12XS-E is a high-performance enterprise switch designed with a robust architecture that emphasizes scalability and operational efficiency. Built for demanding environments, it features 12 fixed 10-Gigabit SFP+ ports, advanced Layer 2 and Layer 3 capabilities, and integrated redundancy in its power options to ensure uninterrupted network operations.
WS-C3850-12XS-E supports stacking for simplified management and enhanced performance, making it ideal for campuses and data centers requiring agile, scalable connectivity. Its versatile design, which accommodates high-speed fiber connectivity and flexible uplink configurations, is engineered for mission-critical use cases ranging from core network distribution to high-density access deployments.
WS-C3850-12XS-E price is $11,523.00, a 64.2% saving from the Cisco list price of $32,203.00. WS-C3850-12XS-E is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C3850-12XS-E for additional pricing. Browse the full Catalyst 3850 Switches series or explore all Cisco products.
WS-C3850-12XS-E Specifications
- Product Type
- Switch
- Power Source
- Redundant Power Supply / AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 295W
- Number of Ethernet Ports
- 12–24 Ports
- Number of Downlink Ports
- 12 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Fiber
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- WS-C3850-12XS-E
- Uplink Configuration
- 10G
- IOS
- IP Services
- POE Support
- Non POE
- SFP Ports
- 12 SFP Ports
- Memory
- 4 GB
- Rack Units
- 1 RU
- Interface Ports
- N/A
- Port/Expansion Slot Details
- 12 fixed 10-Gigabit SFP+ ports
- Flash Memory
- 256 MB
- Switching Capacity
- 480 Gbps
- Switching Capacity with Stacking
- 960 Gbps
- Product Name
- Cisco Catalyst 3850-12XS-E Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 11 inches
- Weight
- 22 lbs
WS-C3850-12XS-E Use Case
Enterprise Data Center 10G Aggregation for Virtualized Workloads
In a hyper-converged data center environment, the Cisco Catalyst WS-C3850-12XS-E 12-port 10G fiber switch IP Services aggregates SFP+ links from virtualized server clusters and leverages IOS XE dynamic routing (OSPF/EIGRP) to optimize east-west traffic. Benefit: delivers ultra-low latency, simplifies network topology, and accelerates VM migrations by up to 30% while maintaining carrier-grade reliability.
Campus Building Fiber Aggregation with Advanced IP Routing
On a multi-building enterprise campus, the WS-C3850-12XS-E consolidates 1G/10G fiber uplinks from distribution closets and uses Cisco IOS XE IP Services to enforce QoS for voice, video and data streams. Benefit: ensures sub-second failover, improves VoIP call clarity, and scales bandwidth seamlessly to support high-definition video conferencing and digital signage.
Branch Office Core Router with Dual 10G Fiber WAN Links
At a regional branch office, the Catalyst 3850 12-port 10G fiber switch IP Services terminates dual 10Gbps MPLS and Internet circuits, running BGP for automatic route failover and traffic engineering. Benefit: achieves sub-50 ms WAN resilience, consolidates routing and switching into one platform, and reduces capital and operational expenses by eliminating standalone edge routers.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 WS-C3850-12XS-E |  WS-C3850-12X48U-S |  WS-C3850-12XS-S |  WS-C3850-48W-S |  WS-C3850-24P-S | |
|---|---|---|---|---|---|
| Depth | 11 inches | 14.5 inches | 14.1 inches | 13.2 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10G | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.73 inches | 1.73 inches | 1.75 inches |
| IOS | IP Services | IP Services | LAN Base | LAN Base | LAN Base |
| Interface Ports | N/A | 10/100/1000 | N/A | 10/100/1000 | 10/100/1000 |
| 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-C3850-12XS-E | WS-C3850-12X48U-S | WS-C3850-12XS-S | WS-C3850-48W-S | WS-C3850-24P-S |
| Media Type Supported | Fiber | Combo | Fiber | Combo | Twisted Pair |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Number of Downlink Ports | 12 Ports | 12 Ports | 12 Ports | 48 Ports | 24 Ports |
| Number of Ethernet Ports | 12–24 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | Non POE | POE+ | POE+ |
| Port/Expansion Slot Details | 12 fixed 10-Gigabit SFP+ ports | 12 x 10G SFP+ uplink ports, 48 x 10/100/1000 Ethernet ports | 12 x 10-Gigabit SFP+ ports | 48 fixed 10/100/1000 ports with 4 dedicated SFP uplink ports | 24 x 10/100/1000 PoE ports, 4 x 1G SFP ports |
| Power Consumption | 295W | 350 W | 370W | 370W | 370 W |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco Catalyst 3850-12XS-E Switch | Cisco Catalyst 3850-12X48U Series Switch | Cisco Catalyst 3850-12XS-S | Cisco Catalyst 3850 48 Port PoE+ Switch | Cisco Catalyst 3850-24P-S |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | No | No | No |
| SFP Ports | 12 SFP Ports | 12 SFP Ports | 12 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 480 Gbps | 176 Gbps | 160 Gbps | 176 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 960 Gbps | 480 Gbps | 480 Gbps | 480 Gbps | 480 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 1G | 1G |
| Weight | 22 lbs | 29 lbs | 18 lbs | 34 lbs | 18 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
Q
Quincy Adams
4
Smooth activation and stable enterprise use.
R
Richard Coleman
5
Excellent throughput for fiber-based networks.
S
Scott Donovan
4
Cisco reliability with advanced routing features.
T
Trevor Mills
4
Handled demanding workloads consistently.
Questions & Answers
What is the Cisco Catalyst 3850 12XS switch (WS-C3850-12XS-E)?
The WS-C3850-12XS-E is a Cisco Catalyst 3850 series fixed-configuration switch offering 12 x 10G SFP+ fiber ports and a pre-installed IP Services software license for advanced L2/L3 features.
How many ports and what types does the WS-C3850-12XS-E include?
It features 12 fixed 10-Gigabit SFP+ fiber ports and supports dual-redundant power supplies for high-speed uplinks and resilient fiber connectivity.
What is the switching capacity and forwarding performance?
It delivers up to 480 Gbps switching capacity and supports a forwarding rate of 178.5 million packets per second (Mpps) to ensure low-latency, high-throughput performance.
What advanced software features come with the IP Services license?
The IP Services license includes full Layer 3 routing (OSPF, EIGRP, BGP), multicast (PIM), VRF, and advanced traffic management for scalable, secure enterprise networks.
Does the WS-C3850-12XS-E support Cisco StackWise-480 technology?
Yes. It supports Cisco StackWise-480, enabling up to nine switches to form a single logical unit with 480 Gbps of stack bandwidth and unified management.
Which network protocols are supported?
Supported protocols include IPv4/IPv6 routing, OSPF, EIGRP, BGP, VRF, PIM, HSRP, GLBP, and MSTP for comprehensive network interoperability.
What security features does this switch offer?
It provides 802.1X authentication, MACsec encryption, dynamic ARP inspection, IP source guard, VLAN ACLs, and control-plane policing to protect network resources.
What power supply options are available?
The switch includes an internal 715 W AC power supply and offers optional redundant power supply modules for high availability and power backup.
How can I manage the WS-C3850-12XS-E?
Management options include Cisco DNA Center, Cisco Prime Infrastructure, web GUI, REST APIs, CLI via console or SSH, and SNMP for centralized monitoring.
What are the primary use cases for this switch?
Ideal for enterprise campus distribution, data center top-of-rack, and aggregation layers where high-density 10G fiber connectivity and advanced routing are required.
Is the switch suitable for high-density fiber environments?
Yes. With 12 fixed 10G SFP+ ports, it delivers reliable high-density fiber connectivity for data centers and enterprise aggregation deployments.
Does the WS-C3850-12XS-E support PoE or PoE+?
No. This model is a fiber-only switch without Power over Ethernet capabilities. PoE/PoE+ is available on other Cisco Catalyst 3850 variants.
What warranty and support options are available?
Cisco provides a limited lifetime hardware warranty plus SMARTnet Service offerings, including 24/7 support, next-business-day hardware replacement, and software updates.
What are the physical and environmental specifications?
It is a 1RU rack-mountable unit (44.5 cm depth), operating temperature 0°C–45°C, humidity 10%–85% non-condensing, designed for standard data center environments.
Which SFP+ transceivers are compatible with WS-C3850-12XS-E?
Compatible transceivers include Cisco SFP-10G-SR, SFP-10G-LR, SFP-10G-ER, and SFP-10G-ZR modules for multimode and single-mode fiber links.
Where can I purchase the WS-C3850-12XS-E and obtain pricing?
You can purchase through authorized Cisco resellers, distributors, or the Cisco online store. Contact your local Cisco partner for a custom quote and availability.