R3WCD - Dell EMC N2128PX-ON 28-Port PoE+ L3 Switch

Dell EMC Networking N2128PX-ON (R3WCD) 28-port Layer 3 managed switch with 24x GbE PoE+, 4x 2.5GbE PoE, and 2x 10GbE SFP+ uplinks for enterprise networks.

The Dell EMC Networking N2128PX-ON, identified by Dell part number R3WCD, is a 1U rack-mountable Layer 3 managed switch built for enterprise access-layer and branch deployments. It combines 24 Gigabit Ethernet PoE+ ports, 4 multi-gigabit (up to 2.5GbE) PoE ports, and 2 fixed 10GbE SFP+ uplink ports, giving network administrators flexible, high-density connectivity for phones, access points, and cameras alongside high-speed uplinks to the core. The switch supports advanced Layer 3 routing, VLANs, ACLs, and QoS, and can be stacked with other Dell EMC N2000 Series switches using mini-SAS stacking ports for simplified, high-availability management. Backed by an integrated power supply and energy-efficient design, the N2128PX-ON is intended for growing campus networks, data closets, and branch offices requiring scalable, secure, and power-efficient switching.

• Manufacturer: Dell EMC (Dell Technologies)
• Product Family: Dell EMC Networking PowerSwitch N-Series
• Product Series: N2100-ON / N2000 Series
• Model: N2128PX-ON
• MPN: R3WCD (also listed as 0R3WCD)
• Product Type: Layer 3 Managed Stackable PoE+ Switch
• Total Ports: 28 ports
• 1GbE PoE+ Ports: 24x 10/100/1000BASE-T PoE+ (RJ45), up to 30.8W per port
• Multi-Gig PoE Ports: 4x 100/1000/2.5G/5G auto-sensing RJ45 PoE ports, up to 60W per port
• Uplink Ports: 2x fixed 10GbE SFP+ ports
• Stacking Ports: 2x mini-SAS stacking ports (up to 12-unit mixed stack with N2000 Series)
• Console/Management Ports: RJ45 console port (RS232) plus USB Type-A port for configuration
• Switching Capacity: 192 Gbps switch fabric (full duplex)
• Forwarding Rate: 256 Mpps
• MAC Address Table: 8K entries (16K theoretical)
• Flash Memory: 256MB
• CPU Memory (RAM): 1GB
• Packet Buffer Memory: 4MB
• VLANs Supported: 4,094
• Routing Protocols: IPv4: RIP, OSPF, BGP; IPv6: OSPFv3
• Power Supply: Integrated 1,000W AC PSU (requires C15 power cord)
• Max Power Consumption: 1,039.8 watts
• Power Supply Efficiency: 80% or better (80 PLUS certified)
• Operating Temperature: 0°C to 45°C (32°F to 113°F)
• Storage Temperature: -40°C to 65°C (-40°F to 149°F)
• Operating System: Dell Networking OS6
• Management: SNMPv2, RMON 1/2/3/9, Telnet, HTTP, TFTP, SSH-2, Dell OpenManage Network Manager (OMNM)
• Security: MAC- and IP-based ACLs, time-controlled ACLs, IP address filtering
• Warranty/Support: 3 Years ProSupport with Next Business Day On-Site Service (new-unit configuration)

• 24x Gigabit Ethernet PoE+ ports for phones, APs, and cameras
• 4x multi-gigabit (2.5GbE) PoE ports for high-bandwidth Wi-Fi 6/6E access points
• 2x fixed 10GbE SFP+ uplink ports for high-speed core connectivity
• Layer 3 routing with inter-VLAN routing and IPv4/IPv6 support
• Stackable design supporting up to 12 units via mini-SAS stacking ports
• Integrated 1,000W power supply with 80 PLUS efficiency rating
• Non-blocking 192Gbps switch fabric with 256Mpps forwarding rate
• Support for 4,094 VLANs and advanced ACL-based security
• Energy-Efficient Ethernet and short-cable detection to reduce power draw
• Dual firmware images for reliable, non-disruptive upgrades
• USB port for simplified configuration via flash drive
• 1U rack-mountable design suited for dense wiring closets

Designed for enterprise access-layer, campus, and branch-office network deployments requiring dense PoE+ and Layer 3 capability.

• Powering and connecting VoIP phones and wireless access points via PoE+
• Aggregating IP security cameras and surveillance systems on multi-gig PoE ports
• Providing Layer 3 inter-VLAN routing for segmented enterprise networks
• Serving as a high-density access switch in campus wiring closets
• Building high-availability stacked switch fabrics across floors or buildings
• Supporting branch office networks needing scalable, secure connectivity
• Uplinking access switches to core/distribution switches via 10GbE SFP+

• High-density PoE+ for phones, APs, cameras
• Fast 10GbE uplinks reduce network bottlenecks
• Layer 3 routing simplifies VLAN segmentation
• Stackable for scalable, resilient network growth
• Energy-efficient PSU lowers operating costs
• Compact 1U design saves valuable rack space

• Form Factor: 1U rack-mountable
• Dimensions (H x W x D): 43.5 mm x 440.0 mm x 387.0 mm (1.7 in x 17.3 in x 15.2 in)
• Weight: Approx. 15.05 lbs / 6.8 kg
• Airflow: Front-to-back (I/O to power supply) airflow with redundant variable-speed fans

Per available Dell documentation, this switch is validated for the following stacking and management configurations:

• Dell EMC Networking N2000 Series switches (mixed stack, up to 12 units)
• Dell EMC Networking N2128PX-ON switches (homogeneous stack)
• Dell EMC Networking N2024 switch
• Dell EMC Networking N2048 switch
• Dell EMC Networking N2024P switch
• Dell EMC Networking N2048P switch
• Dell OpenManage Network Manager (OMNM) for centralized multi-switch management
• Dell Networking OS6 firmware (N2100Std series images)

Note: Mixed stacking with N2000 Series requires the matching N2100Std firmware image; later firmware releases reduced maximum mixed-stack size from 12 to 8 units. Mixed stacking is not supported with N1100-ON, N1500, N3000E-ON, or N3132PX-ON Series, though these share common CLI/configuration documentation.

• Dell EMC Networking N2128PX-ON switch unit
• RJ45-to-DB9 console cable
• Rack-mounting kit (2 brackets, bolts, cage nuts)
• Mounting ears
• Getting Started / Installation Guide
• Safety, Environmental, and Regulatory information booklet

Q: What product does Dell part number R3WCD correspond to?

A: R3WCD is the Dell part number for the Dell EMC Networking N2128PX-ON, a 28-port Layer 3 managed PoE+ switch confirmed via Dell's official support and installation documentation.

Q: How many PoE ports does the N2128PX-ON provide?

A: It provides 24 Gigabit Ethernet PoE+ ports (up to 30.8W each) plus 4 multi-gigabit PoE ports supporting up to 60W per port for high-power devices.

Q: Can the N2128PX-ON be stacked with other switches?

A: Yes, Dell's official driver documentation confirms it can mixed-stack with Dell EMC Networking N2000 Series switches using two mini-SAS stacking ports, supporting up to 12 units in early firmware releases.

Q: What is the switching capacity of the N2128PX-ON?

A: According to Dell's official Campus Quick Reference Guide and third-party specification sheets, the switch has a non-blocking switching fabric capacity of 192 Gbps and a forwarding rate of 256 Mpps.

Q: Does the N2128PX-ON support Layer 3 routing?

A: Yes, it supports Layer 3 features including inter-VLAN routing, static and dynamic IPv4 routes, and IPv6 routing protocols such as OSPFv3, per Dell's official datasheet.

Q: What operating system runs on the N2128PX-ON?

A: The switch runs Dell Networking OS6, as referenced in Dell firmware driver pages and third-party reseller listings.

Q: What are the physical dimensions and weight of this switch?

A: Per third-party technical specifications, the switch measures 43.5 mm x 440.0 mm x 387.0 mm (1U) and weighs approximately 6.8 kg (15.05 lbs).

Q: Is the Dell R3WCD (N2128PX-ON) still available for new purchase?

A: The N2128PX-ON is an older N-Series model primarily found today through refurbished/reseller channels; Dell's official product pages indicate it has moved toward end-of-sale status while remaining supported for existing firmware updates.