Cisco WS-C3850-12XS-E

Overview

The Cisco WS-C3850-12XS-E is a fully managed rack-mountable switch designed to provide high-speed connectivity for growing networks. It features twelve SFP+ ports that support both 1 Gigabit and 10 Gigabit fiber optics, allowing flexible configurations for uplinks, access connections, and backbone links within a compact chassis. Built with Cisco StackWise and StackPower technologies, it enables stacking multiple switches into a single resilient system with a stack bandwidth of 480 Gbps, ensuring consistent performance as your network expands.

This switch fits well in wiring closets, small data center racks, or desktop setups, making it suitable for midsize offices, campus environments, and branch sites that require reliable bandwidth and uptime. Network administrators benefit from granular traffic control and monitoring through Cisco’s familiar management tools, while end users experience fast file transfers, clear voice calls, and smooth wireless roaming on a unified infrastructure.

Key features

• Twelve SFP+ ports that support both 1 Gigabit and 10 Gigabit fiber modules, offering versatile connectivity options.
• Fully managed switch capabilities for detailed traffic control, monitoring, and network optimization.
• Cisco StackWise technology enables multiple switches to operate as a single unit, simplifying management and increasing redundancy.
• StackPower technology allows power sharing among stacked switches, enhancing reliability and reducing downtime.
• Compact rack-mountable design with optional desktop placement, fitting into various enterprise environments with limited space.
• High stack bandwidth of up to 480 Gbps prevents bottlenecks in inter-switch communication, maintaining smooth network performance.

Key specs

• Ports: 12 SFP+ ports supporting 1 Gigabit and 10 Gigabit fiber optics
• Stack bandwidth: 480 Gbps
• Management: Fully managed with Cisco IOS software
• Form factor: Rack mountable with optional desktop placement
• Stacking technology: Cisco StackWise and StackPower

Connectivity and compatibility

This switch supports a wide range of fiber optic modules for both 1 Gigabit and 10 Gigabit speeds, allowing seamless integration with existing network infrastructure. Its compatibility with Cisco StackWise technology means it can be combined with other Catalyst 3850 switches to form a unified system, simplifying network expansion and management. The device is well suited for environments that require aggregation of multiple access layer switches or high-speed fiber connections to distribution nodes.

Ideal uses and environments

The Cisco WS-C3850-12XS-E is a strong choice for midsize offices, campus networks, and branch sites that demand reliable, high-speed fiber connectivity. It works well in wiring closets and small data center racks where space is limited but performance cannot be compromised. This switch supports environments where voice, video, and data traffic must be managed efficiently, making it suitable for businesses that rely on unified communications and fast data transfers.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more