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SG300-28PP-K9
Cisco SG300-28PP-K9 Small Business 300 26-Port Gigabit PoE+...
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SG300-28PP-K9 is a managed Layer 2+ Gigabit PoE+ switch with 26 fixed RJ-45 ports, including 24 powered ports, and two additional Gigabit combo interfaces. Each combo interface uses either its copper connection or its SFP cage, not both simultaneously. The fixed uplink architecture has no removable network-module bay. Its full-width 1U chassis belongs to the Cisco Small Business 300 Series, serving networks that connect IP phones, wireless access points and surveillance endpoints. The discontinued SG300-28MP-K9 increases the shared PoE budget to 375W. Choose the powered-port allocation separately from the physical connection count when specifying this Gigabit PoE+ managed switch.
SG300-28PP-K9 price for new stock is is available on request. Get immediate quote. SG300-28PP-K9 refurb price is $221.46.
Request bulk order quote for SG300-28PP-K9 for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity provides wire-speed, nonblocking switching across the enabled interfaces. 41.67 Mpps forwarding performance applies to 64-byte packets, providing the small-packet throughput figure. 180W of shared PoE power requires allocation across connected endpoints rather than a maximum-power assumption for every powered port. Static IPv4 routing supports maintained next-hop paths, with 512 routes available; dynamic routing is outside the feature set. SG300-28PP-K9 accommodates 16384 MAC addresses for learned endpoint entries. Administrators configure the Cisco 300 Series through its web GUI or command-line interface, with SSH available for protected remote access. 222W worst-case input consumption sets the maximum electrical-load figure for circuit planning. The internal supply accepts 100-240V AC, while two fans provide cooling within the 0°C to 45°C operating range.
ORM Systems supplies SG300-28PP-K9 new sealed or certified refurbished, with new units carrying up to a 3-year extended warranty and certified refurbished units up to 1 year; returns cover 30 days on every condition, and terms apply. Refurbished units are inspected and bench-tested, including PoE output under load on every powered port, with firmware verified and configuration wiped to factory default. Specify the condition, quantity and regional power cord on the PO; enterprise and volume orders support PO acceptance, Net-30 for government and RMA with advance replacement across UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24 PoE+ / 2 copper / 2 combo; all 1G |
PoE Budget | 180W |
Cooling | 2 fans |
Replaces | SRW2024P-K9-AU / SRW2024P-K9-BR; end of sale April 27, 2015 |
Lifecycle Status | Cisco support ended August 31, 2023 |
Replacement PID | C1300-24P-4G |
When a branch has a maintained IPv4 addressing plan and needs local subnet gateways, the 300 Series supports 128 IP interfaces. Map each required gateway to its physical port, VLAN, link aggregation group or loopback interface, then confirm that the complete interface plan fits before specifying the order.
When several sites need the same configuration baseline, text-editable configuration files and autoconfiguration through SCP allow the 300 Series to reuse an approved build. Separate common settings from site-specific addressing, identify the intended configuration file for each unit, and place staging requirements beside the hardware quantities on the purchase order.
When a lab requires packet capture before installing replacement hardware, a single mirroring session can send traffic from eight source ports to one destination port. Reserve the capture connection in the test plan and distinguish monitored endpoints from the analyzer connection before ordering the required patching and staging equipment.
10G uplinks to distribution
SG300-28PP-K9 has Gigabit interfaces, including its fixed combo uplinks; no individual 10G connection is available. Distribution designs requiring 10G links exceed this switch's native port capabilities.
Fanless operation in occupied rooms
SG300-28PP-K9 uses two fans and produces 40.4 dB acoustic noise. A requirement for passive cooling or silent operation excludes this model.
Active Cisco manufacturer support
Cisco support for SG300-28PP-K9 ended August 31, 2023. The current migration endpoint is C1300-24P-4G, which changes the uplink arrangement to four dedicated 1G SFP ports.
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| SG300-28PP-K9 |  SG300-52P-K9-EU |  SF302-08 |  SG300-28SFP-K9 |  SG300-10P | |
|---|---|---|---|---|---|
| Depth | 257 mm | 350 mm | 10 inches | 257 mm | 170 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | 10/100/1000 | Gigabit Ethernet | Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-mount | Rack-Mount 1U | Desktop |
| Height | 44.45 mm | 44.45 mm | 1.75 inches | 44.45 mm | 44.45 mm |
| Manufacturer Part Number | SG300-28PP-K9 | SG300-52P-K9-EU | SF302-08 | SG300-28SFP-K9 | SG300-10P |
| SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 4 SFP Ports | 26 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 56 Gbps | 104 Gbps | 16 Gbps | 56 Gbps | 20 Gbps |
| Width | 440 mm | 440 mm | 17.5 inches | 440 mm | 279.4 mm |
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SG300-28PP-K9 identifies a Gigabit 300 Series model: 28 system ports comprising 26 fixed copper ports and two combo interfaces, with PP identifying PoE+ on 24 ports. K9 completes the ordering identifier. Each combo interface provides a choice of copper or fiber connectivity rather than two simultaneously usable connections.
SG300-28PP-K9 is managed through a web GUI, a full or menu-based CLI, console access, SSH and SNMP. Browser management supports HTTP/HTTPS. Legacy integrations include Cisco Small Business FindIT Network and Cisco OnPlus. Specify local administration and monitoring requirements explicitly; legacy integrations do not restore manufacturer support for discontinued hardware.
SG300-28PP-K9 is discontinued: Cisco sales ended August 2, 2018, and manufacturer support ended August 31, 2023. A reseller purchase does not restart Cisco service. The forward migration chain passes through discontinued SG350-28P-K9-NA and CBS350-24P-4G-NA models before reaching the current C1300-24P-4G migration endpoint.
ORM Systems offers SG300-28PP-K9 new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Returns cover 30 days on every condition; terms apply. Cisco's original limited lifetime hardware warranty and manufacturer service ended August 31, 2023.
SG300-28PP-K9 provides 24 PoE+ ports sharing a 180W power budget. The remaining fixed copper ports and combo interfaces are not powered outputs. Before ordering, total the power allocations required by the attached endpoints; the number of available ports alone does not establish whether their combined demand fits.
SG300-28PP-K9 accepts MGBSX1 for 1G multimode links over 300 m and MGBLX1 for 1G single-mode links over 10 km. Match the installed fiber and required distance to the optic, and specify compatible transceivers at both link ends rather than treating every SFP as interchangeable.
Yes, the Small Business 300 supports IPv4 static inter-VLAN routing, with 512 static routes and 128 IP interfaces. Dynamic routing is outside this feature set. A routed order should identify the required interfaces and maintained next-hop configuration rather than assume automatic route discovery or an enterprise routing license upgrade.
Yes, SG300-28PP-K9 is a full-width 1U rack-mount switch measuring 440 mm wide, 44.45 mm high and 257 mm deep. A mounting kit accompanies the original package. Confirm the required mounting hardware and regional power cord on the order, particularly when specifying certified refurbished equipment.
SG300-28PP-K9 replaces regional SRW2024P-K9 versions, including SRW2024P-K9-AU and SRW2024P-K9-BR, which reached end of sale on April 27, 2015. Those older models provided PoE rather than PoE+. Retain the required regional power arrangement on the replacement order without assuming that an existing configuration transfers unchanged.
SG300-28MP-K9 provides a 375W PoE budget where SG300-28PP-K9 provides 180W, both shared across 24 powered ports. Both models are discontinued. The higher-budget model addresses legacy endpoint allocations exceeding 180W; the lower-budget model suits like-for-like orders whose complete allocation remains within its available power.
SG300-52P-K9 has 50 fixed copper ports and 48 powered ports, compared with 26 fixed copper ports and 24 powered ports on SG300-28PP-K9. Both belong to the retired 300 Series. The larger model addresses legacy connection-density requirements; the smaller model suits orders retaining the existing lower-density arrangement.
C1300-24P-4G provides four dedicated 1G SFP uplinks, while SG300-28PP-K9 provides two Gigabit combo interfaces that select copper or fiber. C1300-24P-4G is the current forward migration endpoint. Choose the current model for that fiber-uplink arrangement; retain the discontinued model only when the existing combo-port configuration is required.
United States
