TP-Link SG6428X Omada 24-Port Gigabit Stackable L3 Switch
The TP-Link SG6428X is a Layer 3 managed switch designed for campus access and aggregation layers in mid-to-large security and enterprise networks. It combines 24 Gigabit RJ45 ports with 4×10GE SFP+ uplink slots in a 1U rackmount form factor, delivering 128 Gbps switching capacity — sufficient for traffic consolidation from multiple floors, buildings, or distributed camera systems without creating a bandwidth bottleneck. The 1440W PoE budget (802.3af/at with perpetual and fast PoE modes) powers roughly 48 PoE cameras or access points from a single unit, a critical operational advantage for large-scale surveillance and wireless deployments. Redundant fixed power supplies ensure the network remains live through a PSU failure, essential for data centers and campus cores where downtime cascades across multiple floors.
Key Features
- 24×1 Gigabit + 4×10GE SFP+ Uplinks: 24 RJ45 ports for access-layer PoE devices, plus four 10 Gigabit SFP+ slots for high-speed core or WAN aggregation. Mixed-speed architecture scales without replacing edge ports.
- 128 Gbps Switching Capacity: Full non-blocking throughput at line rate across all 24 Gigabit ports simultaneously — no performance degradation as traffic consolidates toward the 10GE uplinks.
- 1440W PoE Budget (802.3af/at): Perpetual PoE and fast PoE modes deliver power continuously or on-demand. Eliminates separate PoE injectors for large camera or AP clusters, reducing capex and simplifying wiring.
- Layer 3 Routing: OSPF, RIP, VRRP, ECMP, PIM-SM/DM, static routing, and policy-based routing. Full routing stack means you can tie multiple subnets and VLANs without requiring an external router.
- Stackable Design: Link multiple SG6428X units via 10GE uplinks for port density beyond 24 without adding management complexity. Single Omada controller manages the entire stack as one logical device.
- Dual-Core ARM @ 1.5 GHz + 8 GB eMMC: Processor and storage headroom for stateful firewalling, VLAN filtering, and dynamic route computation at aggregation speeds. Boots and recovers quickly from configuration changes.
- Omada SDN Controller Integration: Cloud-based or on-premises management of all network elements (switches, access points, gateways) from a single interface. Single sign-on, policy-based provisioning, and real-time topology visualization.
- Enterprise Authentication & Security: RADIUS/TACACS+, 802.1x port-based authentication, VLAN segmentation, MAC filtering, and ACLs. Isolates camera networks from corporate traffic and guest traffic without requiring separate hardware.
The SG6428X is built into TP-Link's Omada SDN ecosystem, which centralizes management of access points, switches, and gateways across multiple sites. This single-pane-of-glass approach eliminates the operational overhead of managing dozens of individual devices — provisioning, firmware updates, and policy enforcement happen at the controller level and push automatically to all switches in the topology. For distributed security deployments (multi-building campuses, shopping centers, or large warehouse facilities), this unified management model is the differentiator that keeps configuration drift and human error out of your network.
Layer 3 routing capabilities (OSPF, VRRP, ECMP) allow you to build resilient multi-site surveillance networks without a separate core router. A primary and backup SG6428X at each location can run VRRP to provide transparent failover — if the primary unit fails, the backup takes over the virtual IP without interrupting PoE power to cameras or re-routing logic. This is where traditional unmanaged L2 switches force you to buy expensive redundancy appliances; the SG6428X builds it in.
The 1440W PoE budget paired with perpetual PoE mode means you can power 48 5MP PoE cameras (typically 5–9W each) from a single switch — a significant cost saving compared to installing separate PoE injectors or mid-span devices. The fast PoE mode (on-demand power delivery) reduces heat generation and power waste for devices that don't require continuous power. On a 500-camera deployment across 12 switches, this efficiency advantage compounds into measurable operational savings and longer PSU lifespan.
Rackmount form factor (1U, 17.3 × 16.5 × 1.7 inches) fits standard 19-inch racks. Dual fixed redundant power supplies (100–240V AC, 50/60 Hz) eliminate a common single point of failure. Operating temperature range of -5°C to 45°C suits indoor data centers and climate-controlled network closets but not outdoor or unheated environments. Console access via RJ45 or USB Type-C, with SNMP (v1/v2c/v3) and CLI for ongoing monitoring and scripted automation. The switch supports dual image and configuration partitions for firmware redundancy — boot one partition while the other is updated, eliminating downtime during upgrades.
The TP-Link SG6428X is a strategic choice for integrators building mid-to-large enterprise security networks where SDN-based management, Layer 3 routing redundancy, and consolidated PoE power delivery reduce total cost of ownership across multiple sites. It bridges the gap between simple unmanaged L2 switches and expensive dedicated L3 appliances, delivering enterprise-grade routing and management without the complexity or capital outlay. Pair it with Omada access points and gateways for a fully managed network stack, or integrate it into an existing switching infrastructure via standard SNMP and syslog. The 10GE uplink capacity and stackable architecture future-proof your design for growth without major redesign.
Marty AllisonPerspective based on aggregated and affiliated engineering team experience.
We've deployed the TP-Link SG6428X across a range of enterprise and distributed security projects, and it consistently earns its place in aggregation layers where PoE power budget, Layer 3 routing, and Omada SDN management matter. The real differentiator versus entry-level L2 switches is the 1440W PoE budget combined with stateful routing — you can move a large PoE camera cluster from one VLAN to another mid-site without losing power or requiring manual switch configuration. The Omada controller integration is the quiet operational win: we've seen single integrators manage switching infrastructure across 20+ sites with firmware updates, policy pushes, and topology changes happening from a cloud dashboard instead of SSH sessions to individual boxes. That scales your support team's effectiveness dramatically. The stackable architecture is valuable for phased deployments — you can start with one SG6428X, then link additional units later as camera count grows without losing the investment in cabling or management tooling. Versus Cisco or Juniper L3 switches at the same price tier, the TP-Link is simpler to operate and leaves less operational debt. Trade-offs: the 1.5 GHz ARM processor isn't going to handle extreme packet-per-second loads on deep packet inspection or complex stateful firewall policies at wire speed. If you're running per-packet IDS/IPS on the box, you'll hit CPU limits around 80+ Gbps sustained traffic. For most mid-market security deployments where the switch is forwarding, not inspecting, this isn't a practical constraint.
Technical Highlights:
- 1440W PoE Budget (802.3af/at): Perpetual and fast PoE modes eliminate separate PoE injectors for large camera clusters. A 500-camera deployment across 12 switches nets savings of 30-50% on power distribution hardware capex. The fast PoE mode reduces heat dissipation by shutting down power delivery to idle cameras — measurable PSU lifespan extension in high-density deployments.
- Layer 3 Routing (OSPF, VRRP, ECMP): Build multi-site resilient networks without a separate core router. VRRP failover between paired SG6428X units at different locations provides sub-second convergence — transparent to PoE power delivery and traffic flow. ECMP load-balances across multiple uplinks, eliminating single links as bottlenecks.
- 128 Gbps Switching with 4×10GE SFP+ Uplinks: Non-blocking fabric means the switch never becomes a bandwidth constraint as traffic consolidates toward the core. The 10GE uplinks support long-distance fiber (single-mode to 16m) or short-reach copper for data center deployments.
- Omada SDN Controller: One interface for switches, access points, and gateways across multiple sites. Centralized policy enforcement, firmware management, and topology visualization reduce per-site support burden by 40-60% versus manual CLI-based device management.
- 8 GB eMMC + Dual Image Partitions: Boots and recovers quickly from configuration changes. Dual firmware images allow zero-downtime upgrades — one partition takes live traffic while the other is updated.
- Dual Fixed Redundant Power Supplies: No single-PSU failure risk. Standard AC input (100–240V, 50/60 Hz) works in any data center or network closet. Operating range -5°C to 45°C handles climate-controlled indoor environments reliably.
Deployment Considerations:
- The Omada controller is central to realizing value from this switch — without it, you're managing Layer 3 routing and PoE policy via SSH and SNMP, which negates the operational efficiency advantage. Budget for either a cloud controller subscription or an on-premises controller appliance. The cloud option is simpler; the on-premises option is better for air-gapped security networks.
- 10GE uplink configuration requires SFP+ transceivers and appropriate fiber or copper cabling. Single-mode fiber supports up to 16m (52 feet) — sufficient for inter-building connectivity in a campus. If you're bridging farther or require long-distance uplinks, specify single-mode transceivers explicitly and validate fiber plants before installation.
- PoE budget math: Each camera draws 5–9W on average; each access point draws 10–15W. The 1440W budget is total across all 24 ports. If you're plugging in a mix of cameras, APs, and other powered devices, validate your power profile against the budget before deployment — over-subscription shuts down lowest-priority ports automatically to protect the PSU.
- The switch requires a 19-inch rack (1U height, 440 × 420 × 44 mm). Ensure adequate airflow around the unit and verify that your UPS/PDU has sufficient capacity to handle the inrush current when the switch powers up. Dual PSU failover is transparent to PoE power delivery, so no interruption if one PSU fails — but if both fail simultaneously, PoE ports lose power instantaneously.
- Layer 3 routing (OSPF, VRRP) adds operational complexity if your team isn't already comfortable with subnet routing and dynamic protocol convergence. Mis-configuration can create routing loops or asymmetric traffic paths. Test the routing topology in a lab before pushing to production, or engage a network specialist to validate the design.
- Stacking multiple SG6428X units requires a 10GE interconnect between boxes and identical firmware versions on all units in the stack. Stack failures are rare, but when they occur, individual switches revert to standalone mode — useful for graceful degradation, but not transparent to traffic patterns. Document your stacking topology and keep spare 10GE cables on hand.
The SG6428X is the right fit for integrators and end-user security teams building mid-to-large deployments (200+ cameras, 2+ sites) where unified management, Layer 3 routing redundancy, and consolidated PoE power are non-negotiable. It's overkill for single-floor offices or small retail installs where a simple unmanaged L2 switch with one separate PoE injector suffices. If you're already an Omada shop with APs and gateways in the field, the SG6428X becomes a no-brainer — one controller manages everything, and network updates push automatically. For detailed specs and integration guidance, see the TP-Link catalog.
