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SG300-28PP-K9-UK
Cisco SG300-28PP-K9-UK Small Business 300 24-Port Gigabit Po...
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SG300-28PP-K9-UK is a managed Layer 2+ Gigabit Ethernet PoE+ switch with 24 powered access ports, two additional copper uplinks and two copper/SFP combo uplinks. The fixed uplink connections operate at 1G and offer no 10G upgrade path. A 1U rack-mount chassis places Cisco 300 Series hardware in small-business access networks rather than modular campus systems. Powered connections accommodate IP phones and other compatible endpoints, while the additional connections serve upstream links without occupying powered access ports. Each combo connection uses either its copper connector or its SFP cage, not both simultaneously. The discontinued SG300-28MP-K9-UK differs principally in available endpoint power, offering a 375W allocation for higher aggregate PoE demand.
SG300-28PP-K9-UK price for new stock is is available on request. Get immediate quote. SG300-28PP-K9-UK refurb price is $558.48.
Request bulk order quote for SG300-28PP-K9-UK for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity supports the switch's nonblocking forwarding architecture. 41.67 Mpps forwarding performance applies to 64-byte packets, distinguishing packet-processing throughput from link bandwidth. 180W of shared PoE output requires endpoint allocations to remain within the aggregate power limit. Static IPv4 routing supports communication between local networks, with capacity for 512 static routes and 128 IP interfaces rather than a dynamic routing control plane. SG300-28PP-K9-UK carries 128 MB of CPU memory and 16 MB of flash for its embedded management software and stored configuration. A dynamically shared 8 Mb packet buffer serves traffic across the interfaces, while the address table accommodates 16384 MAC entries. The SG300-28PP supports browser management over HTTP/HTTPS and command-line administration through the console or SSH. Two fans provide active cooling, so installation planning must account for audible operation. 222W worst-case consumption, including PoE output, establishes the maximum published electrical load for branch power and UPS sizing.
Specify SG300-28PP-K9-UK in new sealed or certified refurbished condition, with ORM coverage of up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units. Returns cover every condition for 30 days; terms apply, and Cisco's original limited lifetime coverage ended August 31, 2023. Refurbished units are inspected and bench-tested, including power-on and POST, every port linking at rated speed, PoE output under load on every powered port, firmware verification and configuration wiping to factory default. Submit the required condition and quantity on the purchase order; PO acceptance, Net-30 for government, RMA with advance replacement and regional stock/RMA across UK, EU, US and MEA support enterprise and volume orders.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24 x 1G PoE+, 2 copper uplinks, 2 combo uplinks |
PoE Budget | 180W shared |
Max Power Draw | 222W |
Cooling | 2 fans |
Lifecycle Status | Cisco service ended August 31, 2023 |
Replacement PID | C1300-24P-4G |
In a 40-seat small-to-medium business, the SG300-28PP-K9-UK-26’s 24 PoE+ ports with 180W budget power IP phones and wireless APs, while its 2 combo mini-GBIC ports link to the core network over fiber. This setup simplifies cabling, centralizes device management, and ensures high availability. Outcome: streamlined deployments, reduced operating expenses, and scalable network growth.
A UK retail chain deploys 18 PoE+ security cameras and 6 PoE POS terminals powered by the SG300-28PP-K9-UK-26’s 180W PoE budget. Gigabit uplinks via the mini-GBIC ports carry real-time video and transaction data on segmented VLANs. Outcome: enhanced loss prevention, zero downtime at checkout, and simplified network operations with consolidated power and data.
A financial services branch uses the SG300-28PP-K9-UK-26 to power VoIP handsets and access points on its 24 PoE+ ports while its 2 combo mini-GBIC ports establish redundant fiber links to headquarters. Secure VLANs isolate sensitive traffic for compliance and audit readiness. Outcome: resilient inter-site connectivity, strict data segregation, and centralized network control.
When replacing phones or other powered endpoints, each device must fit the 30W per-port ceiling while the combined allocation remains shared. Record every endpoint's requested power, including startup requirements, and attach the endpoint power schedule to the purchase order before selecting the condition and quantity.
When several small-business sites need the same switch configuration, text-editable configuration files support a common staging process. Administrative privilege levels 1, 7 and 15 provide differentiated command-line access. Include the approved configuration, permitted administrator roles and site-specific management settings in the staging instructions before releasing the purchase order.
When investigating faults on an existing small-business network, one port-mirroring session can copy traffic from eight source ports to a single analyzer port. Reserve the analyzer connection and identify the source interfaces in the staging request before specifying the switch and its test configuration.
10G uplinks to upstream switches
Built-in uplinks operate at 1G, and the chassis has no removable uplink-card bay. Installing SFP+ optics cannot add 10G connectivity to these interfaces.
Active Cisco service coverage
Cisco service ended August 31, 2023, so this model cannot meet an active vendor-support requirement. C1300-24P-4G is the current successor in the replacement chain.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| SG300-28PP-K9-UK |  SG300-10P |  SG300-28PP-K9-EU |  SG300-52P |  SF302-08MPP | |
|---|---|---|---|---|---|
| Depth | 257 mm | 170 mm | 257 mm | 350 mm | 170 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Fast Ethernet |
| Form Factor | Rack-Mount 1U | Desktop | Rack-Mount 1U | Rack-Mount 1U | Desktop |
| Height | 44.45 mm | 44.45 mm | 44.45 mm | 44.45 mm | 44.45 mm |
| Manufacturer Part Number | SG300-28PP-K9-UK | SG300-10P | SG300-28PP-K9-EU | SG300-52P | SF302-08MPP |
| Power Consumption | 222W | 81.44W | 222W | 473.62W | 143.89W |
| 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) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 56 Gbps | 20 Gbps | 56 Gbps | 104 Gbps | 5.6 Gbps |
| Width | 440 mm | 279.4 mm | 440 mm | 440 mm | 279.4 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 90 days, for dependable protection on every order. The exact term is confirmed on your quote, order confirmation and invoice.
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Reviewed on the 13 May 2021
28-port PoE+ smart switch provides high-performance connectivity and reliable power for office networks in the UK.
Reviewed on the 25 July 2021
Durable switch with professional-grade PoE support and minimal downtime.
Reviewed on the 29 June 2026
Efficient and stable switch delivering consistent network performance.
Reviewed on the 9 September 2026
Easy-to-manage PoE+ switch suitable for medium office setups.
Reviewed on the 9 September 2019
Professional-grade solution with reliable power and throughput.
SG300-28PP-K9-UK identifies a 300 series Gigabit managed switch with 28 total network connections and PoE+ capability. The 28-port configuration comprises 24 powered access ports, two additional copper ports and two copper/SFP combo connections. Retain the complete -K9-UK ordering identifier when matching replacement stock.
SG300-28PP-K9-UK supports a browser interface over HTTP/HTTPS, a serial console and full or menu-based command-line administration with SSH access. The 300 series also supports Cisco Small Business FindIT Network and Cisco OnPlus integration. Specify the required access method and administrative credentials for staging.
SG300-28PP-K9-UK is discontinued: end of sale was August 2, 2018, and Cisco service ended August 31, 2023. The direct replacement, SG350-28P-K9-UK, and its successor, CBS350-24P-4G-UK, are also discontinued. The replacement chain now leads to C1300-24P-4G for a current-generation purchase.
ORM offers SG300-28PP-K9-UK new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco's original limited lifetime hardware warranty ended with Cisco service on August 31, 2023.
180W is the shared PoE budget for SG300-28PP-K9-UK, with a 30W maximum allocation on each of its 24 PoE+ ports. The aggregate budget prevents every powered port from receiving its maximum allocation simultaneously. Size the endpoint mix by combined power demand, not port availability alone.
The Small Business 300 SG300-28PP supports two 1G SFP connections through its copper/SFP combo ports. MGBSX1 supports multimode fiber over 300 m, while MGBLX1 supports single-mode fiber over 10 km. Each occupied SFP connection shares its logical port with the corresponding copper connector.
Yes, SG300-28PP-K9-UK supports static IPv4 routing with capacity for 512 static routes and 128 IP interfaces. Its routing capability supports communication between local networks without requiring a dynamic routing protocol. Configure the relevant interfaces and static next hops as part of the network configuration.
SG300-28PP-K9-UK replaced the discontinued SRW2024P-K9-UK, also known as SG300-28P. The newer model provides PoE+ on its powered connections rather than the predecessor's PoE capability. SG300-28PP-K9-UK is itself discontinued, so this relationship serves legacy replacement identification rather than a recommendation for a new supported deployment.
SG300-28MP-K9-UK provides a 375W PoE budget, whereas SG300-28PP-K9-UK provides 180W. Both configurations have 24 powered Gigabit access ports, so the distinction is aggregate endpoint power rather than powered-port count. Both are discontinued; the PP model addresses lower aggregate loads, while the MP model accommodates higher legacy power allocations.
SG300-52P-K9 has 48 PoE+ access ports, compared with 24 on SG300-28PP-K9-UK. That difference changes the number of powered endpoint connections available from one chassis. Both belong to the discontinued 300 series; the 28-port model addresses smaller legacy endpoint groups, while the 52-port model accommodates higher connection density.
C1300-24P-4G provides four dedicated 1G SFP uplinks, whereas SG300-28PP-K9-UK combines two copper uplinks with two copper/SFP combo uplinks. C1300-24P-4G is the current successor reached through the replacement chain. The older model serves exact-match legacy replacement requirements; the successor addresses current-generation purchasing with dedicated fiber uplinks.
The SG300-28PP uses a fixed internal AC power supply accepting 100-240V AC, rather than an external adapter or a removable redundant supply pair. Worst-case consumption including PoE is 222W at 110V. Include the required regional mains connection and electrical load in the order's installation requirements.
Yes, the Small Business 300 SG300-28PP is a 1U rack-mount switch measuring 440 mm wide, 44.45 mm high and 257 mm deep, with a weight of 3.95 kg. Its two fans provide active cooling. Confirm mounting hardware and clearance requirements when specifying the installation accessories.
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