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SG300-52MP-K9-EU
Cisco SG300-52MP-K9-EU Small Business 300 48-Port Gigabit Po...
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SG300-52MP-K9-EU is a managed Layer 2+ access switch with 48 Gigabit PoE+ access ports and a fixed Gigabit uplink arrangement. Two dedicated copper uplinks accompany two RJ-45/SFP combo uplinks, with one interface active in each combo pair. The full-width 1U chassis belongs to the Cisco Small Business 300 family and serves SMB networks requiring wired connectivity and endpoint power. Copper connections accommodate Ethernet devices, while the combo uplinks provide a choice of copper or fiber media without a removable uplink card. The discontinued SG300-52P-K9-EU has a lower 375W PoE budget. This 52-port Gigabit managed switch operates independently rather than forming a hardware stack, so additional units remain separate switches rather than members of one stacked chassis.
SG300-52MP-K9-EU price for new stock is is available on request. Get immediate quote. SG300-52MP-K9-EU refurb price is $575.52.
Request bulk order quote for SG300-52MP-K9-EU for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
104 Gbps switching capacity supports traffic across the access and uplink interfaces without an oversubscribed switching fabric. 77.38 Mpps forwarding performance applies to 64-byte packets, providing a separate packet-processing measure from bandwidth. 740W of shared PoE allocation supports powered-device loads within the available aggregate budget. Static IPv4 routing supports 512 routes and 128 IP interfaces for configured paths between networks; dynamic routing is not provided. SG300-52MP-K9-EU carries 128 MB of memory and 16 MB of flash for its embedded software and configuration. STP, RSTP, and MSTP provide spanning-tree controls for redundant Ethernet paths. The MAC table accommodates 16000 entries for endpoint learning. Four fans cool the chassis within its 0°C to 45°C operating range. A published MTBF of 117130 hours at 45°C describes the hardware reliability measure, not a service commitment. 873.05W maximum consumption at 110V provides the upper published input-power figure for electrical sizing.
Order SG300-52MP-K9-EU as new sealed or certified refurbished, and put the condition, quantity, regional power-cord requirements, and required optics on the purchase order. Certified refurbished units are inspected and bench-tested, with PoE output verified under load on every powered port, firmware verified, and the configuration wiped to factory default. ORM warranties provide up to a 3-year extended term on new units and up to 1 year on certified refurbished units; 30-day returns apply to every condition, terms apply, while Cisco coverage ended October 31, 2023. For enterprise and volume orders, POs are accepted, government buyers have Net-30 terms, and RMA includes advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G PoE+, 2 copper and 2 combo uplinks |
PoE Budget | 740W shared |
Max Power Draw | 873.05W at 110V |
Cooling | 4 fans |
Lifecycle Status | End of sale October 4, 2018 |
Replacement PID | C1300-48FP-4G |
When several small-business sites need a consistent phone configuration, automatic voice VLAN assignment provides a common configuration approach. Voice traffic can enter a voice-specific VLAN and receive appropriate QoS treatment rather than relying solely on individual port settings. Specify the voice VLAN policy and endpoint discovery requirements before the PO.
When an installation consolidates several physical connections into logical links, the switch supports eight link aggregation groups with eight active ports per group. LACP also permits candidate-port selection for dynamic aggregation. Identify the intended member interfaces and confirm the connected equipment's aggregation configuration before specifying the interconnection cabling on the PO.
When replacement units must pass a staging process before installation, dual firmware images allow separate active and alternate images to be retained. Firmware transfers can use the browser interface, TFTP, or SCP over SSH. Specify the accepted software image and the configuration acceptance checks before the units are released from staging.
10G connections to upstream equipment
The fixed uplinks operate at Gigabit speed, with no 10G uplink interface or removable uplink card. Installations requiring a native 10G upstream connection need different hardware.
Simultaneous 30W on every powered port
The 740W allocation cannot deliver 30W to all 48 powered ports simultaneously. Endpoint loads must fit the shared budget; otherwise, the required power exceeds this model's capacity.
Ongoing Cisco service coverage
Cisco service ended October 31, 2023. The current replacement chain ends at C1300-48FP-4G; the intervening SG350 and CBS350 models are also discontinued.
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| SG300-52MP-K9-EU |  SG300-28MP-K9-UK |  SG300-10SFP-K9-EU |  SG300-52 |  SRW2008-K9 | |
|---|---|---|---|---|---|
| Depth | 350 mm | 350 mm | 170 mm | 17.1 inches | 170 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | 10/100/1000 | Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Desktop | Rack-mount | Desktop |
| Height | 44.45 mm | 44.45 mm | 44.45 mm | 1.73 inches | 44.45 mm |
| Manufacturer Part Number | SG300-52MP-K9-EU | SG300-28MP-K9-UK | SG300-10SFP-K9-EU | SG300-52 | SRW2008-K9 |
| SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 8 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 4 SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 104 Gbps | 56 Gbps | 20 Gbps | 104 Gbps | 20 Gbps |
| Weight | 5.32 kg | 5.26 kg | 2.125 kg | 12 lbs | 1.16 kg |
| Width | 440 mm | 440 mm | 279.4 mm | 17.7 inches | 279.4 mm |
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SG300-52MP-K9-EU identifies a 300 Series Gigabit Max-PoE managed switch with 52 active Ethernet ports. SG300 names the Gigabit family, 52 expresses the total port count, and MP denotes Maximum PoE. The configuration includes 48 powered access ports and four uplinks; retain the complete K9-EU ordering code on the PO.
Cisco Small Business 300 switches support browser management over HTTP or HTTPS, a full or menu-based CLI, SSH, Telnet, and SNMP management. A serial console provides direct access. FindIT Network and OnPlus integration also belong to the family's management capabilities, but those integrations do not restore Cisco service for retired hardware.
SG300-52MP-K9-EU provides a shared 740W PoE budget across 48 PoE+ access ports. The aggregate allocation does not support every powered port drawing 30W simultaneously. Size the connected-device mix using maximum endpoint requirements, including startup demand, rather than treating the per-port capability as an available allocation on every port at once.
SG300-52MP-K9-EU has two dedicated Gigabit copper uplinks and two Gigabit copper/SFP combo uplinks. Each combo pair permits one active connection, so copper and fiber do not operate simultaneously within that pair. MGBSX1 and MGBLX1 provide compatible Gigabit fiber options; select the transceiver to match the installed fiber and distance.
Yes, SG300-52MP-K9-EU supports static IPv4 routing between configured IP interfaces, with 512 static routes and 128 IP interfaces. Routed interfaces can use physical ports, link aggregation groups, VLAN interfaces, or loopback interfaces. This provides configured routing paths rather than dynamic route learning, so the intended forwarding paths must be specified explicitly.
No, Cisco Small Business 300 switches operate as standalone managed switches rather than hardware stack members. Connecting several units with Ethernet links does not create a shared stacking backplane. Specify ordinary network interconnections and separate switch configurations when adding another unit, rather than ordering stacking adapters or dedicated stack cables.
Yes, SG300-52MP-K9-EU uses a full-width 1U rack-mount chassis measuring 440 mm wide, 44.45 mm high, and 350 mm deep. The unit weighs 5.32 kg and uses internal AC power. Allow space for its connections and maintain unobstructed side ventilation when planning the rack position.
SG300-52MP-K9-EU is discontinued: end of sale was October 4, 2018, and Cisco support ended October 31, 2023. Continued operation does not provide ongoing Cisco service entitlement. The forward replacement chain passes through discontinued SG350 and CBS350 models and ends at the current C1300-48FP-4G.
ORM offers SG300-52MP-K9-EU new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units. Every condition has 30-day returns, terms apply. Cisco's original limited lifetime hardware warranty ended with support on October 31, 2023; ORM coverage is separate.
SG300-52MP-K9-EU provides 740W of PoE allocation, while the discontinued SG300-52P-K9-EU provides 375W. Both configurations have 48 powered Gigabit access ports. The higher-budget model accommodates a larger aggregate endpoint load; the lower-budget model represents a legacy configuration for installations whose total powered-device demand fits its smaller allocation.
SG300-52MP-K9-EU uses an internal AC power supply, whereas the discontinued SG300-10MPP-K9-EU uses an external AC adapter. Both accept 100-240V AC input. Internal power suits installations keeping power conversion inside the chassis; the external-adapter model represents a different legacy power arrangement, not a current purchasing alternative.
C1300-48FP-4G provides four Gigabit SFP uplinks, while SG300-52MP-K9-EU provides two dedicated Gigabit copper uplinks and two copper/SFP combo uplinks. The older model serves existing installations retaining that uplink arrangement. C1300-48FP-4G is the current endpoint of the replacement chain for buyers moving to four dedicated fiber uplink positions.
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