SKU: 83725811807

Cisco Catalyst WS-C3750X-12S-E Layer 3 Switch

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Description

Cisco Catalyst WS-C3750X-12S-E Layer 3 SwitchDesigned for reliable performance in demanding enterprise networks, the Cisco Catalyst WS C3750X 12S E Layer 3 Switch combines robust routing, scalable fiber connectivity, and enterprise grade security in a compact 1U form factor. This switch is engineered to simplify network operations, accelerate application delivery, and improve uptime across branch offices, data centers, and campus deployments. With flexible fiber uplinks, advanced Layer 3

Designed for reliable performance in demanding enterprise networks, the Cisco Catalyst WS-C3750X-12S-E Layer 3 Switch combines robust routing, scalable fiber connectivity, and enterprise-grade security in a compact 1U form factor. This switch is engineered to simplify network operations, accelerate application delivery, and improve uptime across branch offices, data centers, and campus deployments. With flexible fiber uplinks, advanced Layer 3 features, and Cisco’s trusted IOS software, it delivers the network intelligence you need to support today’s bandwidth-intensive applications while preparing you for tomorrow’s connectivity needs.

  • High-performance Layer 3 switching with IPv4 and IPv6 support, intelligent routing, and rapid convergence to keep critical applications online. The WS-C3750X-12S-E is built for efficient inter-VLAN routing, dynamic routing protocols, and scalable WAN/LAN integration, ensuring that your network responds quickly to changes in traffic patterns and topology.
  • 12 SFP-based fiber ports offer flexible, high-bandwidth connectivity for access, distribution, and uplink applications. This model is ideal for fiber-rich environments, providing reliable 1000 Mbps uplinks and deep-capacity connectivity to core switches, data center devices, and storage networks while minimizing copper cabling complexity.
  • Stacking and scalability options simplify growth. With Cisco StackWise Plus technology and the potential for stack configurations, administrators can scale capacity and unify management across multiple switches without downtime, enabling seamless expansion as the network footprint expands.
  • Enterprise-grade security and quality of service to protect data and prioritize business-critical traffic. Features such as ACLs, port security, and refined QoS policies help enforce appropriate access control, reduce risk, and guarantee predictable performance for voice, video, and mission-critical applications.
  • Energy-efficient design and Cisco reliability for lower total cost of ownership. The Catalyst 3750X family emphasizes efficient power management and reduced heat output, contributing to lower operating costs and a smaller environmental footprint, while maintaining Cisco’s renowned uptime and serviceability.

Technical Details of Cisco Catalyst WS-C3750X-12S-E Layer 3 Switch

  • Product family: Catalyst 3750X Series Layer 3 Switch
  • Port configuration: 12 x SFP fiber ports for flexible fiber connectivity
  • Routing capabilities: IPv4 and IPv6 routing with static and dynamic routing protocols; supports summarized routes and ACLs for granular control
  • Switching and forwarding: High-performance, wire-speed forwarding with a scalable switching fabric designed for enterprise workloads
  • Stacking and scalability: Supports StackWise Plus (for stacking multiple switches) to simplify management and increase port density without downtime
  • Power and cooling: Internal power supply with options for redundant power on certain SKUs; energy-efficient operation with EEE support
  • Management and security: Cisco IOS-based management with CLI access, SNMP, and integrated security features; supports QoS, security ACLs, DHCP snooping, and user authentication mechanisms
  • Environment and compliance: RoHS compliant; designed for data center and campus environments with standard rack-mount form factor

how to install Cisco Catalyst WS-C3750X-12S-E Layer 3 Switch

Begin by preparing a clean, well-ventilated 19-inch equipment rack in a secure network closet or data center. Ensure there is adequate airflow around the unit to prevent hot spots. Mount the switch in a 1U slot using the included rack ears, and secure all mounting hardware as per your rack’s guidelines. Once installed, connect the power cable to the appropriate power source and verify that the environmental conditions meet the device’s operating specifications.

Connect your fiber cables to the 12 SFP ports, using the appropriate multimode or single-mode fiber transceivers and patch cables. Label cables clearly to simplify future maintenance and troubleshooting. If you plan to deploy a stack, install the stacking cables between the switches according to Cisco’s stacking guidelines to create a single, resilient management plane with a shared forwarding state.

For initial configuration, connect a management console to the switch via the console port and access the device through the Cisco IOS CLI. Establish a management IP address on a dedicated management VLAN, set up a default gateway, and confirm basic reachability. Create and assign VLANs as needed for your network design, and configure SVI interfaces for inter-VLAN routing if this switch will serve as a layer-3 gateway.

Enable routing features and begin configuring dynamic routing protocols appropriate for your environment, such as OSPF or EIGRP, along with any static routes required for your WAN topology. Implement access control lists and QoS policies to protect critical applications and prioritize traffic like voice and video. Save the running configuration to the startup configuration to ensure changes persist after a reboot.

Test connectivity by pinging gateway devices, verifying route tables with show ip route, and validating the status of each SFP port. If you’re stacking, confirm the stack membership and examine the stackwise status to ensure all units are synchronized. Finally, perform a basic failover test by simulating a link failure or power interruption to verify that redundancy features behave as expected. Schedule routine firmware updates and security patches through Cisco’s recommended maintenance windows to keep the device secure and supported.

For ongoing operations, integrate this switch into your network monitoring and management workflows. Enable SNMP traps for important events, configure Syslog for centralized logging, and synchronize time with an NTP server for accurate event timestamps. Regular backups of the switch configuration, along with periodic health checks and firmware reviews, will help maintain network reliability and reduce troubleshooting time during outages.

Frequently asked questions

  • Is this a Layer 3 switch? Yes. The Cisco Catalyst WS-C3750X-12S-E provides enterprise-class Layer 3 routing capabilities in addition to high-performance Layer 2 switching, making it suitable for networks that require efficient inter-VLAN routing and scalable network design.
  • What kind of ports does this model have? It features 12 SFP fiber ports, enabling flexible fiber connectivity for uplinks and access links, ideal for environments that rely on fiber optics for high-speed interconnects.
  • Does it support stacking? Yes. The WS-C3750X-12S-E supports Cisco StackWise Plus stacking, which enables multiple switches to operate as a single logical unit, simplifying management and increasing capacity without downtime.
  • What security and QoS capabilities are included? The switch includes enterprise-grade security features such as ACLs, port security, and DHCP snooping, along with QoS policies to prioritize critical applications like voice and video traffic.
  • How do I install and maintain this switch? Install in a standard 19-inch rack, connect fiber cables to the SFP ports, optionally configure a stack, and perform initial configuration via the CLI. Maintain the device with regular firmware updates, monitoring, and scheduled backups of configurations.
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SKU: 83725811807

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Grace
Omaha, US
★★★★★ 5
A must try for hot sleepers!
Color: Blue, Size: Queen (U.S. Standard), Set name: Silky, Color: Blue, Size: Queen (U.S. Standard), Set name: Silky
If you are a hot sleeper these pillowcases are for you! Not only are they silky and beautiful, but they are cool to the touch!The Arc-Chill fabric absorbs heat and instantly cools your skin! If you are prone to insomnia, night sweats, give these a try! They come in a 2 pack and have a few different colors to try out. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
A
Verified Purchase
Allen Plemmons
Chelsea, US
★★★★★ 5
Freezing !
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
### Product Review: Avolare 2 Pack Cooling Pillow Cases #### Overview The Avolare 2 Pack Cooling Pillow Cases are designed to provide a cooler and more comfortable sleeping experience, especially for hot sleepers. Made with Arc-Chill fabric, these pillowcases promise to offer a cooling effect, protect hair and skin, and add a touch of luxury with their soft and silky texture. The pillowcases come in a standard gray color, suitable for standard and queen-size pillows. #### Material and Design **Rating: ★★★★★** The Avolare Cooling Pillow Cases are crafted from Arc-Chill fabric, known for its high Q-max value (>0.5), indicating excellent cooling properties. The material feels incredibly soft and silky to the touch, providing a luxurious feel that enhances sleep quality. The gray color is neutral and versatile, fitting seamlessly with various bedding styles. The design includes a hidden zipper, ensuring that the pillowcase stays securely on the pillow while maintaining a smooth and sleek appearance. The zipper is discreet and doesn’t interfere with comfort, which is a thoughtful addition to the overall design. #### Cooling Effect **Rating: ★★★★★** One of the standout features of these pillowcases is their cooling effect. The Arc-Chill fabric effectively wicks away heat and moisture, making them ideal for hot sleepers or those living in warmer climates. Users have reported a noticeable difference in temperature, which contributes to a more restful and comfortable night’s sleep. This cooling property is particularly beneficial during the summer months or for individuals who tend to overheat while sleeping. #### Hair and Skin Benefits **Rating: ★★★★☆** In addition to their cooling properties, the Avolare pillowcases are also beneficial for hair and skin. The smooth and silky texture reduces friction, helping to prevent hair breakage and skin irritation. This can be particularly advantageous for individuals with sensitive skin or those prone to hair damage. While the pillowcases are not a cure-all for skin and hair issues, they do contribute positively by creating a gentler surface. #### Durability and Care **Rating: ★★★★☆** The Avolare Cooling Pillow Cases are easy to care for, maintaining their cooling properties and softness even after multiple washes. They are machine washable, which adds to their convenience. However, it is recommended to follow the care instructions carefully to ensure the longevity of the cooling effect and fabric quality. #### Versatility **Rating: ★★★★☆** These pillowcases are designed to fit both standard and queen-size pillows, adding to their versatility. They are perfect for use in any bedroom setting, from master bedrooms to guest rooms, and can be paired with various pillow types and fillings. #### Pros and Cons **Pros:** - Excellent cooling properties ideal for hot sleepers. - Soft and silky texture is gentle on hair and skin. - Hidden zipper design for a secure fit. - Machine washable and easy to care for. - Versatile fit for standard and queen-size pillows. **Cons:** - Cooling effect may diminish slightly with frequent washing. - Limited color options (only available in gray). #### Final Verdict **Overall Rating: ★★★★☆** The Avolare 2 Pack Cooling Pillow Cases are an excellent choice for anyone looking to enhance their sleeping experience, particularly hot sleepers. The cooling properties of the Arc-Chill fabric, combined with the soft and silky texture, provide a comfortable and luxurious feel. The hidden zipper design adds practicality without sacrificing aesthetics. While there are minor drawbacks, such as potential diminishing of the cooling effect with frequent washing and limited color options, the overall benefits make these pillowcases a worthwhile investment. If you’re seeking to improve your sleep quality and enjoy a cooler, more comfortable night’s rest, the Avolare Cooling Pillow Cases are definitely worth considering.
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Reviewed in the United States on June 1, 2024
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Verified Purchase
Brian Olson
Chelsea, US
★★★★★ 4
Cool as the other side of the pillow
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Good quality and keeps cool on side of pillow. Have to flip pillow for constant cooling is the ok only down side. Love the material as it is very soft and silky feel to it. Doesn't wrinkle over pillow and had some good color options. Easy to clean. Fair price for a good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
N
Verified Purchase
Nik
Pawtucket, US
★★★★★ 5
Love!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Awesome cases! They really are cool to the touch. I didn’t sleep hot at all. I have a “cut-out” memory foam pillow, and this stretched around it perfectly. It is flexible enough that it doesn’t impede with the cut out. And while the material is “silky,” it doesn’t slide around the pillow while sleeping on it. The zipper feature is perfect. I washed and dried per the tag instructions and they washed very well. Super happy.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Jane - NY
Natrona Heights, US
★★★★★ 5
AMAZING - LOVE THESE!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
I've been using these pillow cases for more than 6 months and LOVE them. They are well made, no wrinkling, fraying or wearing out, even with a weekly washing. I love the zippers on them, my pillows fits perfectly in the case and don't constantly escape from the case overnight. They definitely perform as described: they keep me cool at night and don't smell and actually don't make a mess of my hair. I bought an extra one and put it on a pillow I keep close to my body which helps me from overheating during the night. They are a great value for the price, I wish I could get top sheets in the same style as these and I'd be in heaven!
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Reviewed in the United States on March 23, 2026

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