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SG300-52MP-K9-NA
Cisco SG300-52MP-K9-NA Small Business 300 48-Port Gigabit Po...
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SG300-52MP-K9-NA provides 48 Gigabit PoE+ access connections, two dedicated Gigabit copper uplinks, and two Gigabit combo uplinks. Each combo connection shares an RJ-45 interface with an SFP cage, allowing copper or fiber connectivity without adding another independent port. Managed Layer 2+ operation supports small-business networks connecting IP phones, wireless access points, cameras, and wired computers. The Cisco Small Business 300 design occupies a full-width 1U rack chassis rather than a compact desktop enclosure. All uplinks are fixed, so expansion does not involve a removable uplink card. The discontinued SG300-52P-K9 carries a lower 375W PoE allowance, distinguishing that sibling from this Max-PoE configuration. The Cisco 300 Series combines endpoint switching and local network administration without requiring an enterprise chassis or modular uplink system.
SG300-52MP-K9-NA price for new stock is is available on request. Get immediate quote. SG300-52MP-K9-NA refurb price is $1,174.95.
Request bulk order quote for SG300-52MP-K9-NA for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
104 Gbps switching capacity supports full-duplex forwarding across the active Gigabit interfaces. 77.38 Mpps forwarding performance specifies the rate for 64-byte packets rather than a large-frame throughput measurement. 740W of shared PoE capacity must be allocated across connected endpoints rather than treated as an unrestricted per-port allowance. Static IPv4 routing supports 512 static routes and 128 IP interfaces for networks using explicitly configured next hops. SG300-52MP-K9-NA carries 128 MB of memory and 16 MB of flash for management software and configuration storage. STP, RSTP, and MSTP support spanning-tree operation, while LACP groups links when adjacent equipment uses matching aggregation settings. Browser administration, a full CLI, and SNMP provide management paths for configuration and monitoring. The MAC table accommodates 16384 addresses, while jumbo frames reach 9216 bytes where the connected equipment permits. 873.05W worst-case consumption at 110V AC provides the input-side figure for electrical sizing, distinct from the endpoint power allocation.
Order SG300-52MP-K9-NA in new sealed or certified refurbished condition, specifying the required quantity and condition on the purchase order. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, clean boot, PoE output under load on every powered port, and optics bay recognition; firmware is verified and configurations are wiped to factory default. ORM Systems provides up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units, with 30-day returns on every condition, terms apply; Cisco's original limited lifetime hardware warranty has ended. For enterprise and volume purchases, ORM Systems accepts POs, provides Net-30 for government, and offers RMA with advance replacement across UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48x1G PoE+ / 2x1G RJ-45 uplinks / 2x1G combo uplinks |
PoE Budget | 740W shared |
Max Power Draw | 873.05W at 110V AC |
Cooling | 4 fans |
Lifecycle Status | Retired / Cisco service ended |
Replacement PID | C1300-48FP-4G |
When an endpoint refresh adds phones, cameras, or wireless access points, per-port demand matters as well as outlet count. PoE+ delivery reaches 30W per powered connection, subject to the shared allocation. Record each endpoint's requested power and simultaneous startup demand before sizing the purchase order.
When several offices need a common configuration, text-editable files support repeatable staging, while CLI privilege levels 1, 7, and 15 separate administrator access. Configuration files can be transferred to another switch rather than recreated individually. Specify the approved configuration template, access privileges, and staging instructions on the purchase order.
When a lab or staging bench must capture endpoint traffic before deployment, one mirroring session accepts eight source ports and sends traffic to one destination port. Parallel captures requiring separate destinations exceed that session model. Define the capture sources and analyzer connection before specifying the order.
10G uplinks to distribution
SG300-52MP-K9-NA limits each uplink connection to 1G. The fixed copper interfaces and shared SFP connections cannot provide a 10G link to distribution equipment.
Every powered port drawing 30W simultaneously
SG300-52MP-K9-NA shares 740W across 48 powered ports, preventing simultaneous 30W allocation on every port. Total endpoint demand must remain within that shared allowance.
Active Cisco hardware service entitlement
SG300-52MP-K9-NA belongs to a retired family with Cisco service already ended. C1300-48FP-4G is the current migration endpoint for replacement purchasing.
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| SG300-52MP-K9-NA |  SG300-28MP-K9 |  SRW2008-K9 |  SG300-28SFP-K9 |  SG300-28SFP-K9-UK | |
|---|---|---|---|---|---|
| Depth | 350 mm | 350 mm | 170 mm | 257 mm | 257 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 16 MB | 16 MB | 16 MB | 16 MB | 16 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Desktop | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44.45 mm | 44.45 mm | 44.45 mm | 44.45 mm | 44.45 mm |
| Manufacturer Part Number | SG300-52MP-K9-NA | SG300-28MP-K9 | SRW2008-K9 | SG300-28SFP-K9 | SG300-28SFP-K9-UK |
| Memory | 128 MB | 128 MB | 128 MB | 128 MB | 128 MB |
| SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 26 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 26 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 104 Gbps | 56 Gbps | 20 Gbps | 56 Gbps | 56 Gbps |
| Width | 440 mm | 440 mm | 279.4 mm | 440 mm | 440 mm |
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SG300-52MP-K9-NA identifies a Cisco 300 Series 52-port Gigabit Max-PoE managed switch with 48 powered ports. SG300 identifies the Gigabit family, 52 covers the total interfaces, and MP identifies the higher-power configuration. K9-NA completes the exact ordering identifier to retain when specifying this model on a purchase order.
SG300-52MP-K9-NA is managed through an HTTP/HTTPS web interface, a full CLI over console or SSH/Telnet, and SNMP. The original management integrations also include Cisco Small Business FindIT Network and Cisco OnPlus. Administrator access methods and credentials should be specified during staging rather than assuming configuration-free operation.
SG300-52MP-K9-NA is discontinued, and Cisco service for the retired Cisco 300 Series has ended. The original replacement, SG350-52MP-K9-NA, is also discontinued, as is its CBS350-48FP-4G-NA successor. The forward migration path now ends at C1300-48FP-4G rather than either intermediate model.
ORM Systems offers SG300-52MP-K9-NA new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Every condition includes 30-day returns; terms apply. Cisco's original limited lifetime hardware warranty has ended with Cisco service for this retired family.
SG300-52MP-K9-NA supplies a shared 740W PoE budget across 48 powered Gigabit ports, with PoE+ delivery reaching 30W on an individual port. The shared budget prevents every powered port from drawing its individual maximum simultaneously. Power allocations must follow connected endpoint demand rather than assuming 30W is reserved for every outlet.
SG300-52MP-K9-NA has two dedicated 1G RJ-45 uplinks and two 1G combo uplinks sharing copper and SFP interfaces. Each combo connection uses either its RJ-45 interface or its SFP cage, not both simultaneously. The fixed uplink architecture does not include a removable expansion card or a 10G uplink.
Yes, the Cisco 300 Series supports static IPv4 routing, with 512 static routes and 128 IP interfaces. Routed connections can use physical ports, link aggregation groups, VLAN interfaces, or loopback interfaces. The configuration must define the required routed interfaces and static next hops rather than depend on dynamic route exchange.
No, SG300-52MP-K9-NA uses one internal AC power supply without internal redundancy. The input accepts 100-240V AC, and the chassis uses four fans. Upstream power arrangements remain separate from internal redundancy; an additional internal power module cannot turn this fixed-power design into a dual-supply switch.
SG300-52MP-K9-NA provides 740W for PoE, while SG300-52P-K9 provides 375W. Both serve 48 powered Gigabit ports with two combo uplinks, and both are discontinued. The Max-PoE version suits larger shared power allocations; the lower-budget model fits legacy configurations whose aggregate endpoint demand remains within 375W.
SG300-52MP-K9-NA offers 48 powered access ports, while SG300-28MP-K9 has 24 powered access ports. Both are discontinued legacy models. The 48-port model suits denser existing cable plants terminating more endpoints in one chassis; the 24-port model fits lower-density installations retaining the same managed switch family.
C1300-48FP-4G has four dedicated 1G SFP uplinks, whereas SG300-52MP-K9-NA has two dedicated copper uplinks and two shared copper/SFP combo uplinks. C1300-48FP-4G is the current migration endpoint after two discontinued intermediates. The current model suits refreshes needing four fiber uplinks; the legacy unit suits like-for-like sparing.
The Cisco 300 Series Max-PoE switch requires 1U of rack height and measures 440 mm wide, 44.45 mm high, and 350 mm deep. The SG300-52MP-K9-NA chassis weighs 5.32 kg and operates from 0°C to 45°C. Rack planning must accommodate cabling clearance and active fan ventilation.
MGBSX1, MGBLX1, MGBLH1, MGBBX1, and MGBT1 are supported Gigabit transceivers for SG300-52MP-K9-NA. MGBSX1 serves multimode fiber; MGBLX1, MGBLH1, and MGBBX1 serve single-mode fiber; MGBT1 serves copper. Transceiver selection must match the far-end connection and account for each combo port's shared RJ-45 interface.
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