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SG300-52-K9
Cisco SG300-52-K9 Small Business 300 48-Port Gigabit Managed...
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SG300-52-K9 is a managed 48-port Gigabit Ethernet switch from the Cisco Small Business 300 Series family. The fixed copper access ports carry data without Power over Ethernet output. The unit has 2 dedicated Gigabit uplinks and 2 shared copper/SFP combo uplinks. The rack-oriented platform is intended for small-business access aggregation, switch replacement and matching hardware across existing installations. The 300 family provides management functions for VLAN-aware access and optional static Layer 3 operation. Buyers should distinguish its actual physical interfaces from network modules or transceivers that may be listed separately. The correct region and hardware suffix must match the item received, especially for multi-site spares. Cisco manufacturer support has ended for this retired family.
SG300-52-K9 price for new stock is is available on request. Get immediate quote. SG300-52-K9 refurb price is $233.73.
Request bulk order quote for SG300-52-K9 for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
104 Gbps switching capacity and 77.38 Mpps forwarding throughput define the switching performance for this specific 48-port model. SG300-52-K9 supports configurable VLAN-based forwarding, web administration and static IPv4 routing in the managed switch software. The 300 series uses shared copper/SFP uplink positions alongside dedicated Gigabit links, requiring the paired medium to be selected per combo port. Because access ports are not PoE sources, phones or cameras needing electrical power require an external solution. Configuration backup and software-version identification matter for replacement stock, especially when an installed environment still relies on an older feature profile. The full part number should be matched to the existing switch configuration rather than selected from port count alone. Cisco service and security software maintenance have already ended; replacement planning therefore affects operational support even when the hardware boots and forwards traffic.
ORM Systems offers SG300-52-K9 new sealed and certified refurbished, with purchase orders accepted for individual replacements and volume purchases. Certified refurbished managed units are inspected and bench-tested for power-on, POST, clean boot, every port linking at rated speed, firmware verification and configuration reset to factory defaults. New units are eligible for up to a 3-year extended ORM warranty and certified refurbished units for up to a 1-year ORM warranty; all conditions include a 30-day return period subject to terms. Government buyers can use Net-30, with RMA advance replacement available. Regional stock and RMA handling cover the UK, EU, US and MEA; confirm quantity, condition and included accessories on the order.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G Ethernet / 4 uplink interfaces |
Lifecycle Status | Cisco service ended 31 October 2023 |
An existing estate already uses Cisco Small Business 300 Series and requires a direct spare for a failed member. SG300-52-K9 retains the 48-port access configuration, allowing the port map to be reviewed without assuming a different family shares its feature set. Confirm the installed software release, power arrangement, and exact ordering suffix before issuing a purchase order.
A wiring area needs 48 copper Gigabit access connections on one managed unit. SG300-52-K9 offers the required density and 2 dedicated Gigabit uplinks and 2 shared copper/SFP combo uplinks, making it necessary to separate access-port demand from uplink provisioning. Confirm VLAN requirements, the uplink medium, and the number of usable interfaces before approving the hardware bill.
A maintenance team holds a small spare pool for the 300 Series at multiple sites. SG300-52-K9 should be matched against installed software configuration and labeled cabling rather than selected solely by the series name. Confirm condition, tested interface operation, and dispatch region before setting the purchase quantity.
Active Cisco hardware support
SG300-52-K9 is beyond Cisco support and cannot provide an active manufacturer service entitlement. Consider a current Cisco Business switching family with the required port count and management features.
Ten gigabit fiber uplinks
SG300-52-K9 provides 2 dedicated Gigabit uplinks and 2 shared copper/SFP combo uplinks; 10G fiber uplinks are not part of this unit.
Powered access devices without injectors
SG300-52-K9 has no PoE output on its access ports. A powered endpoint rollout requires a PoE-capable switch or separately provisioned endpoint injectors and power adapters.
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| SG300-52-K9 |  SG300-52P-K9-EU |  SG300-28P-K9-UK |  SG300-10MP |  SG300-28P | |
|---|---|---|---|---|---|
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Desktop | Rack-Mount 1U |
| Manufacturer Part Number | SG300-52-K9 | SG300-52P-K9-EU | SG300-28P-K9-UK | SG300-10MP | SG300-28P |
| SFP Ports | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 104 Gbps | 104 Gbps | 56 Gbps | 20 Gbps | 56 Gbps |
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SG300-52-K9 is a 48-port Gigabit managed Ethernet switch in the Cisco Small Business 300 Series family. Its access interfaces do not provide PoE output. The unit provides 2 dedicated Gigabit uplinks and 2 shared copper/SFP combo uplinks. Match the complete suffix when checking existing inventory, mounting, and power requirements.
SG300-52-K9 is managed through the embedded web-based switch configuration utility. Administrators can configure VLANs, port settings, and forwarding behavior rather than relying on an unmanaged plug-and-play profile. Confirm the management IP address and software revision of a refurbished unit before attaching it to the production management network.
SG300-52-K9 is no longer supported by Cisco; manufacturer service ended 31 October 2023. The device can still be used in an existing estate, but Cisco service and security updates should not be assumed. Evaluate support obligations and replacement planning separately from physical hardware condition.
SG300-52-K9 is offered by ORM Systems new sealed or certified refurbished. New units carry up to a 3-year extended ORM warranty; certified refurbished units carry up to a 1-year ORM warranty. All conditions allow returns within 30 days, subject to terms. Cisco service has ended.
SG300-52-K9 provides 48 fixed Gigabit Ethernet RJ-45 access ports. The uplink interfaces are separate from that downlink count, and shared combo interfaces must not be added twice when estimating physical connectivity. Confirm the number of devices, reserved management links, and planned uplink media before ordering.
SG300-52-K9 does not provide PoE output on its Gigabit access ports. Devices needing Ethernet power require a separate injector or a different powered-access model. Data connectivity and PoE capacity are distinct requirements, so endpoint electricity must be included in the purchase plan.
SG300-52-K9 provides 2 dedicated Gigabit uplinks and 2 shared copper/SFP combo uplinks. The combo connection can use copper or the paired SFP cage, not both simultaneously. Plan optics, copper connections and spare interfaces against the actual fiber or copper media in the network rather than treating all front-panel connectors as independent ports.
SG300-52-K9 belongs to a full-width rack switch family designed for network cabinet deployments. Confirm that the correct rack ears, fixing hardware and power cord are included with the quoted condition. A refurbished unit should be checked for physical fit, airflow clearance and access to the management and uplink connections.
SG300-52-K9 provides managed VLAN-aware switching and supports a Layer 3 operating mode with IPv4 static routing in the Cisco Small Business 300 Series software family. It should not be treated as a substitute for a full enterprise routing platform. Verify the planned VLAN gateway configuration and route scale before deployment.
SG300-52-K9 should be quoted against the full PID, the 48-port hardware requirement, and the intended uplink connections. Any need for PoE power must be handled outside the switch. Confirm mounting components, power cord, condition, and destination region on the purchase order.
SG300-52-K9 is retired from Cisco manufacturer support. Cisco Business switching products are the migration family for legacy Small Business installations, but the substitute must be selected on current lifecycle status and exact port, PoE, uplink, and management requirements. A nominally similar part number does not prove compatibility.
United States
