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WS-C3850-12XS-S Catalyst 3850 Switch SFP+


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Choosing the Cisco Catalyst WS-C3850-12XS-S switch allows for seamless integration into an enterprise network that demands reliability, high throughput, and flexibility. The device’s 12 high-speed SFP+ ports enable a substantial 10G connectivity, crucial for bandwidth-intensive applications. With the IP Base feature set, users gain access to essential Layer 2 and limited Layer 3 capabilities, suitable for a range of networking needs. The stackable design featuring StackWise-480 technology offers a practical scale-out strategy, permitting up to nine switches in a stack, which simplifies management and enhances redundancy without sacrificing performance, courtesy of the impressive 480 Gbps stack bandwidth.

The integrated wireless controller functionality ensures a unified network by bridging the gap between wired and wireless environments, enhancing the operational efficiency of IT teams. The robust forwarding performance of 227.28 Mpps and switching capacity of 320 Gbps ensure that data flows are handled expeditiously, even during peak times, resulting in a network that is both speedy and resilient.

The switch’s capability to support additional network modules provides flexibility, allowing for expanded connectivity options as organizational needs evolve. Moreover, it contributes to future-proofing the investment by accommodating network growth. The built-in redundancy features like Power Stack with Cisco StackPower technology extend power resilience, minimizing downtime and maintaining business continuity.

It’s evident that the Cisco Catalyst WS-C3850-12XS-S switch is engineered to meet the challenges of modern enterprise networks by delivering advanced features, scalability, and reliability. Whether upgrading the corporate infrastructure or deploying new services, this switch represents a sound investment that can adapt to changing network demands.

WS-C3850-12XS-S switch provides 12 ports 10Gbps SFP+ connection with upgradeable IP base image and build in wireless controller provide fully convergence between wired and wireless on a single platform. It only supports 4 × 10 Gigabit Ethernet network module uplinks option.

Quick Specs

Figure 1 shows the appearance of the Cisco Catalyst WS-C3850-12XS-S.

Table 1 shows the Quick Specs.

Product Code


Enclosure Type

1 RU

Feature Set

IP Base

Network SFP uplink module selection



12 x 10/100/1000 10G SFP+ Optical ports

Maximum stacking number


Stack bandwidth

480 Gbps

Forwarding Performance


Switching Capacity



4 GB

Flash Memory

4 GB 


44.5 cm x 45.0 cm x 4.45 cm

Product Details

Figure 2 shows the front panel of the WS-C3850-12XS-S.


① UID (blue beacon)  ② Mode button  ③ Status LEDs  ④ USB mini-Type B (console) port  ⑤ USB Type A storage port  ⑥ 12 ports of 10G SFP+  ⑦ Network SFP uplink module slot

· The switch supports one hot-swappable network module that provides uplink ports to connect to other devices. The switch should only be operated with either a network module or a blank module installed.

Figure 3 shows the back panel of the WS-C3850-12XS-S switch.


① Ground connector  ② CONSOLE (RJ-45 console port)  ③ Fan module  ④ MGMT port  ⑤ StackWise port connector  ⑥ StackPower connector  ⑦ Power supply modules

Figure 4 shows the StackWise-480 and StackPower connectors.

IP base feature set can only stack with other Catalyst 3850 Series IP base switches. Power stack capacity is supported by Cisco Stackpower technology to provide power redundancy among stacking members.

The Modules, Licenses and Accessories

Table 2 shows some recommended modules, licenses and accessories of this switch.




Cisco 3850 Series 4 x 10GE Network Module


C3850-12 IP Base to IP Services Electronic RTU License


Cisco 3850 Series Power Supply 350W AC


Cisco 3850 Series Secondary Power Supply 350W AC Config 1 Secondary Power Supply


Cisco StackWise-480 50cm stacking cable for Cisco Catalyst 3850 series switch


Cisco StackWise-480 1m stacking cable for Cisco Catalyst 3850 series switch

Switch to Something New

Why Upgrade to Catalyst 9300? | See the Catalyst 9300 Series

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WS-C3850-12XS-S Catalyst 3850 Switch SFP+

Unlock the full potential of your network infrastructure with the WS-C3850-12XS-S Catalyst 3850 Switch SFP+ from Northland Systems. This device stands out for its exceptional performance and reliable connectivity, tailored to meet the demands of modern enterprise networks.

Affordability and Quality Assurance

Sourcing your Cisco Catalyst 3850 switch from Northland Systems means you’re opting for top-tier quality without the exorbitant price tag. With a steadfast 100% Low Price Guarantee, the balance between affordability and high-caliber products is paramount.

On-Demand Expert Support

As you integrate the WS-C3850-12XS-S into your network, take advantage of Northland Systems’ free CCIE technical support. Expertise is just a call or message away, ensuring smooth setup and maintenance without additional expenses.

Secure, Flexible Shopping Experience

Experience peace of mind with secure, flexible transactions. Whether it’s the safety of payment or the convenience of shipping, Northland Systems aligns with McAfee Secure and VeriSign Secured certifications for a trustworthy purchasing process.

Guaranteed Authenticity and Quality

Rest assured, each Catalyst 3850 switch is genuine, meticulously evaluated by Cisco-certified engineers. Choose from brand-new or professionally refurbished conditions to meet your business requirements and trust in their unwavering reliability.

Boosted Buyer Confidence

Northland Systems reinforces customer trust with a 100% Money Back Guarantee. If your Cisco Switch Catalyst 3850 doesn’t meet your expectations, you’re covered, underlining our commitment to your satisfaction.

Reputation and Economic Discounts

With a legacy dating back to 1997, Northland Systems has established a reputation for excellence, further sweetening the deal with significant discounts, providing both fiscal prudence and reliable service history.

Choosing Pre-owned Hardware Advantages

  • Cost Savings: Capitalize on the economic benefits without sacrificing performance.
  • Accelerated Delivery: Skip long lead times with ready-to-ship inventory.
  • Warranty Coverage: Enjoy full warranty protection for peace of mind.
  • Environmental Sustainability: Support a greener planet with refurbished options.
  • Legacy Equipment: Maintain existing infrastructure with access to discontinued parts.

The Cisco Switch Catalyst 3850 blends progressive technology with the assurance and proven track record of Northland Systems. It’s more than a purchase; it’s an investment in durable, cost-effective, and environmentally conscious networking that propels your business forward.

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Front view of Cisco Catalyst WS-C3850-12XS-S switch showing 12 SFP+ ports, status LEDs, and network module slot

WS-C3850-12XS-S Catalyst 3850 Switch SFP+

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