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SG300-28MP-K9-UK
Cisco SG300-28MP-K9-UK Small Business 300 24-Port Gigabit Po...
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SG300-28MP-K9-UK combines Gigabit PoE+ access with fixed copper and fiber-capable uplinks in a managed Layer 2+ rack-mount switch. Its 24 powered access ports connect Ethernet-powered endpoints, while two additional copper uplinks and two RJ-45/SFP combo uplinks connect neighboring equipment. Each combo pair uses either its copper connector or its SFP cage; both cannot operate simultaneously. The Cisco Small Business 300 Series serves business networks requiring configurable switching rather than unmanaged connectivity. SG300-28PP-K9 provides the same powered-port count with a lower aggregate power allowance. That discontinued sibling offers a comparison for existing lower-power installations, not a current-generation replacement. The fixed uplink arrangement requires no removable network card, but the connections remain Gigabit rather than 10G.
SG300-28MP-K9-UK price is is available on request. Get immediate quote.
Request bulk order quote for SG300-28MP-K9-UK for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity accommodates the aggregate Gigabit interfaces, while 41.67 Mpps forwarding performance describes processing with 64-byte packets. SG300-28MP-K9-UK carries 128 MB of CPU memory and 16 MB of flash for its embedded software and configuration. A 16000-entry MAC table supports learned device addresses across the network. 375W of shared PoE output requires an aggregate endpoint allocation rather than an assumption that every powered port can simultaneously reach its individual limit. Static IPv4 routing supports communication between VLANs without dynamic route exchange. The SG300-28MP has an 8 Mb packet buffer shared across its ports, rather than a separate buffer of that size for each connection. Four fans provide active cooling, with acoustic output reaching 54 dB at 50°C. 445W maximum power consumption provides the upper published figure for AC circuit and UPS load planning.
Order SG300-28MP-K9-UK from ORM Systems in new sealed or certified refurbished condition, and specify condition, quantity and delivery region 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 configuration wiped to factory default. ORM Systems provides up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units, with 30-day returns on every condition; terms apply, while Cisco service ended August 31, 2023. For enterprise and volume orders, POs are accepted with Net-30 for government, RMA with advance replacement, and UK, EU, US and MEA stock and RMA handling.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24x1G PoE+ / 2x1G copper / 2x1G combo |
PoE Budget | 375W shared |
Max Power Draw | 445W |
Cooling | 4 fans |
Lifecycle Status | Cisco support ended August 31, 2023 |
Replacement PID | C1300-24FP-4G |
When a branch rollout reuses existing copper cabling, Gigabit connections require Category 5 or better and a maximum cable run of 100 m. Include horizontal runs and patch cords in the length review rather than checking the patch lead alone; specify any required cabling work alongside the hardware before the purchase order.
When spare units are prepared away from the installation site, remote administrative access needs explicit setup. SSH and Telnet are disabled by default on the 300 Series. Plan a local console session, establish administrative credentials and enable the required remote service before dispatching the staged unit to its destination.
10G uplinks to distribution
SG300-28MP-K9-UK provides Gigabit copper and combo uplinks only. Neither its fixed copper connections nor its SFP cages supplies a 10G uplink connection.
Active Cisco support entitlement
Cisco support ended August 31, 2023, so SG300-28MP-K9-UK cannot satisfy an active Cisco support requirement. C1300-24FP-4G is the current successor beyond the discontinued intermediate replacements.
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| SG300-28MP-K9-UK |  SG300-28PP |  SRW2008P-K9-EU |  SG300-28P |  SG300-10MPP-K9-EU | |
|---|---|---|---|---|---|
| Depth | 350 mm | 257 mm | 170 mm | 257 mm | 170 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 | Desktop |
| Height | 44.45 mm | 44.45 mm | 44.45 mm | 44.45 mm | 44.45 mm |
| Manufacturer Part Number | SG300-28MP-K9-UK | SG300-28PP | SRW2008P-K9-EU | SG300-28P | SG300-10MPP-K9-EU |
| Memory | 128 MB | 128 MB | 128 MB | 128 MB | 128 MB |
| Power Consumption | 445W | 222W | 82.5W | 214.4W | 145.7W |
| 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 | 56 Gbps | 20 Gbps | 56 Gbps | 20 Gbps |
| Weight | 5.26 kg | 3.95 kg | 1.24 kg | 4.11 kg | 1.24 kg |
| Width | 440 mm | 440 mm | 279.4 mm | 440 mm | 279.4 mm |
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SG300-28MP-K9-UK identifies the Gigabit 300 Series Max-PoE switch with 28 logical network ports. The MP configuration provides a 375W budget for 24 PoE+ ports, rather than powering every network connection. Keep the K9 and UK segments intact when matching the complete ordering code on a purchase order.
SG300-28MP-K9-UK is managed through its web user interface or through a CLI accessed by serial console, SSH or Telnet. Remote CLI services require enablement before use. Establish network access and administrative credentials during staging, and retain a console connection for local configuration and recovery work.
SG300-28MP-K9-UK is discontinued: end of sale was August 2, 2018, and Cisco support ended August 31, 2023. Its original replacement, SG350-28MP-K9-UK, is also discontinued. The subsequent replacement chain passes through the discontinued CBS350-24FP-4G-UK and reaches C1300-24FP-4G for current replacement planning.
ORM Systems offers SG300-28MP-K9-UK 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. Returns are 30 days on every condition; terms apply. Cisco's original limited lifetime hardware warranty ended with support on August 31, 2023.
SG300-28MP-K9-UK shares 375W across 24 PoE+ ports, with a maximum of 30W per powered port. The aggregate budget does not allow every powered port to draw its individual maximum simultaneously. Record each endpoint's requested power and the allocation priorities before finalizing the connected-device list.
The Small Business 300 combo uplinks support MGBSX1 for Gigabit multimode fiber and MGBLX1 for Gigabit single-mode fiber. MGBSX1 supports distances to 300 m, while MGBLX1 supports distances to 10 km. Match the transceiver to the installed fiber, distance and far-end interface before specifying the optical connection.
SG300-28MP-K9-UK occupies 1U of rack space in a chassis measuring 440 mm wide, 44.45 mm high and 350 mm deep. Its weight is 5.26 kg. Check cabinet depth, cable clearance and mounting hardware together rather than approving the installation from rack height alone.
SG300-28MP-K9-UK provides a 375W PoE+ budget, while SG300-28PP-K9 provides 180W; both power 24 ports. The difference is aggregate endpoint power rather than powered-port count. The discontinued 180W model corresponds to lower-power installed configurations, while the Max-PoE model accommodates a larger aggregate endpoint allocation.
SG300-52MP-K9 has 48 PoE+ access ports, compared with 24 on SG300-28MP-K9-UK. That discontinued higher-density model concentrates more powered connections in one chassis. Its density corresponds to existing installations with a larger endpoint inventory, while the 28-port configuration corresponds to sites requiring fewer powered access connections.
C1300-24FP-4G provides four 1G SFP uplinks, while SG300-28MP-K9-UK has two copper uplinks and two RJ-45/SFP combo uplinks. The older arrangement accommodates mixed copper uplink connections. The current C1300-24FP-4G successor suits buyers requiring four fiber uplink connections without a shared copper connector on each cage.
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