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SG300-28PP-K9-NA
Cisco SG300-28PP-K9-NA Small Business 300 24-Port Gigabit Po...
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SG300-28PP-K9-NA is a managed, Layer 2+ Gigabit access switch for small-business networks combining powered endpoints and conventional Ethernet devices. Twenty-four copper access ports deliver PoE+, while two additional Gigabit RJ-45 ports and two Gigabit combo interfaces provide fixed uplink connections. Each combo interface selects copper or SFP fiber rather than operating both connections simultaneously. The rack-mount Cisco Small Business 300 chassis connects IP phones, wireless access points and office computers without a separate uplink card. The discontinued SG300-28MP-K9 increases the endpoint-power allocation to 375W. A 28-port Gigabit PoE+ managed switch in this family therefore needs to be specified by its full model identity, not just its advertised interface count.
SG300-28PP-K9-NA price for new stock is is available on request. Get immediate quote. SG300-28PP-K9-NA refurb price is $221.46.
Request bulk order quote for SG300-28PP-K9-NA for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity supports nonblocking switching across the installed interfaces. 41.67 Mpps forwarding at a 64-byte packet size defines the small-packet processing rate. Static IPv4 routing supports local forwarding between IP interfaces, with 512 routes and 128 IP interfaces available for configuration. SG300-28PP-K9-NA carries 128 MB of DRAM and 16 MB of flash, while its 8 Mb packet buffer is dynamically shared across ports. STP/RSTP/MSTP provide spanning-tree choices, and LACP supports link aggregation. Four hardware queues support strict-priority and weighted round-robin scheduling for traffic classification and queuing. Administrators can configure the switch through a browser, a text-based CLI or SNMP. The internal AC supply accepts 100–240V, and two fans provide active cooling; redundant internal power is not available. 222W maximum consumption includes PoE loading and establishes the maximum input-power allowance for electrical planning.
ORM Systems offers SG300-28PP-K9-NA new sealed or certified refurbished, with refurbished units inspected and bench-tested, firmware verified and wiped to factory default. Refurbishment includes PoE output verification under load on every powered port and optics bay recognition. Specify condition and quantity on the PO: new units carry up to a 3-year extended ORM warranty, certified refurbished units carry up to 1 year, and every condition includes 30-day returns, terms apply; Cisco's original limited lifetime coverage ended November 30, 2023. Enterprise and volume orders can use PO acceptance, Net-30 for government, RMA with advance replacement, and regional stock/RMA coverage across the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24x1G PoE+ / 2x1G RJ-45 / 2x1G combo |
PoE Budget | 180W shared |
Max Power Draw | 222W |
Cooling | 2 fans |
Lifecycle Status | Cisco support ended November 30, 2023 |
Replacement PID | C1300-24P-4G |
When replacing an installed SG300-28P estate, SG300-28PP-K9-NA is the replacement for SRW2024P-K9-NA. Preserve the endpoint inventory and configuration requirements rather than treating the change in PoE capability as an identical power plan. Specify the complete predecessor and replacement identities, required condition and acceptance checks on the purchase order.
For a multisite rollout requiring repeatable configuration files, the Cisco Small Business 300 switches accept text-editable configurations and support secure file transfer through SCP. Existing provisioning workflows can form part of acceptance testing rather than being assumed compatible. Specify configuration-file validation and the management access method before releasing the hardware purchase order.
When preparing a troubleshooting or validation bench, the switch mirrors traffic from eight source ports to one destination within a single session. That constraint matters when the capture plan spans several endpoints. Confirm the source-port selection, capture interface and required traffic coverage before specifying the lab unit and its acceptance procedure.
10G uplinks to distribution
SG300-28PP-K9-NA is limited to 1G uplinks and has no removable uplink card. A 10G uplink requirement cannot be met by changing the SFP transceiver.
Continued Cisco service eligibility
Cisco service for SG300-28PP-K9-NA ended November 30, 2023. C1300-24P-4G is the current migration endpoint and changes the uplink arrangement to four dedicated 1G SFP ports.
Redundant internal power supplies
SG300-28PP-K9-NA uses one internal AC supply rather than dual redundant supplies. A requirement to maintain operation through an internal power-supply failure needs different hardware.
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| SG300-28PP-K9-NA |  SG300-28MP-K9-EU |  SG300-10MP |  SG300-10SFP-K9-UK |  SG300-10SFP-K9-EU | |
|---|---|---|---|---|---|
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Manufacturer Part Number | SG300-28PP-K9-NA | SG300-28MP-K9-EU | SG300-10MP | SG300-10SFP-K9-UK | SG300-10SFP-K9-EU |
| Power Consumption | 222W | 445W | 154.36W | 18.1W | 18.1W |
| 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) | 8 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 8 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 56 Gbps | 56 Gbps | 20 Gbps | 20 Gbps | 20 Gbps |
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SG300-28PP-K9-NA identifies a Gigabit PoE+ managed switch in the Small Business 300 family. The 28 represents 26 dedicated copper interfaces plus two copper/SFP combo interfaces, while PP identifies PoE+. Preserve K9-NA as part of the complete orderable identity when specifying the hardware rather than shortening the purchase-order part number.
SG300-28PP-K9-NA is managed through an HTTP/HTTPS web UI, a full or menu-based CLI, console access, SSH and SNMP. SNMP supports versions 1, 2c and 3. Legacy discovery and service integrations include Cisco FindIT Network and Cisco OnPlus; these integration names do not describe physical switch stacking.
SG300-28PP-K9-NA reached end of sale on August 2, 2018, and Cisco service ended November 30, 2023. A new or refurbished condition does not restart Cisco support. The migration chain passes through the discontinued SG350-28P-K9-NA and CBS350-24P-4G-NA before reaching the current C1300-24P-4G.
ORM Systems offers SG300-28PP-K9-NA new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units. Every condition has 30-day returns, terms apply. Cisco's original limited lifetime warranty and service coverage ended November 30, 2023.
SG300-28PP-K9-NA replaces SRW2024P-K9-NA, the discontinued SG300-28P Gigabit PoE managed switch. The replacement adds PoE+ endpoint support while retaining a shared power allocation rather than guaranteeing maximum output on every powered interface. Preserve the complete predecessor and replacement part numbers in the change record and purchasing instructions for an installed-base replacement.
SG300-28PP-K9-NA provides 180W shared across 24 PoE+ ports, with a maximum of 30W on an individual powered port. That per-port ceiling is not a simultaneous all-port guarantee. Size the switch against the powered devices' combined allocation and retain capacity for the planned endpoint mix before placing the order.
SG300-28PP-K9-NA has two dedicated Gigabit RJ-45 uplinks and two Gigabit copper/SFP combo interfaces. A combo interface uses either its copper connector or its SFP slot, not both simultaneously. MGBSX1 and MGBLX1 provide multimode and single-mode fiber options respectively; fiber transceivers belong on a separate order line.
Yes, SG300-28PP-K9-NA supports Static IPv4 routing with 512 static routes and 128 IP interfaces. An IP interface can be configured on a physical port, link aggregation group, VLAN interface or loopback interface. Keep the route inventory and interface addressing plan within these limits when specifying local inter-VLAN forwarding.
Yes, SG300-28PP-K9-NA is a rack-mount 1U switch measuring 440 mm wide, 257 mm deep and 44.45 mm high, with a weight of 3.95 kg. The original package includes mounting hardware. Confirm the mounting pieces included with the selected condition and provide ventilation for the two cooling fans.
SG300-28MP-K9 provides a 375W PoE+ budget, compared with 180W on SG300-28PP-K9-NA. Both models are discontinued and have the same powered-port density. The 180W model addresses lower-demand legacy endpoint mixes, while the 375W variant accommodates greater aggregate demand; compare the combined endpoint allocation rather than choosing solely by port count.
SG300-52P-K9 has 48 PoE+ access ports, while SG300-28PP-K9-NA has 24. Both models are discontinued, so the comparison concerns existing installations rather than a current-generation refresh. The smaller switch addresses a lower-density legacy replacement; the larger model serves an installed site requiring more powered copper connections in one chassis.
C1300-24P-4G provides four dedicated 1G SFP uplinks, whereas SG300-28PP-K9-NA uses two Gigabit RJ-45 uplinks and two copper/SFP combo interfaces. The older model is discontinued. Retain the older model for a like-for-like legacy hardware requirement; choose the current successor when the purchase needs the newer, all-SFP uplink arrangement.
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