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SG350-28MP-K9
Cisco SG350-28MP-K9 350 24-Port Gigabit PoE+ Switch, 2x1G SF...
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SG350-28MP-K9 is a managed Gigabit PoE+ switch for small-business networks, combining 24 copper access ports with two dedicated SFP uplinks and two copper/SFP combo uplinks. The fixed uplinks operate at 1G, and each combo connection uses copper or fiber rather than both simultaneously. Its Layer 2+ capabilities suit access networks requiring static routing, while the 1U chassis uses an internal AC supply rather than a desktop adapter. Within the Cisco 350 Series Managed Switches range, the discontinued SG350-28P-K9 carries a smaller 195W PoE budget. This Gigabit managed switch connects IP phones, wireless access points and surveillance endpoints. Purchasing the higher-budget configuration changes the available endpoint allocation, but does not mean every powered port can deliver its individual maximum simultaneously.
SG350-28MP-K9 price for new stock is is available on request. Get immediate quote. SG350-28MP-K9 refurb price is $853.13.
Request bulk order quote for SG350-28MP-K9 for additional pricing. Browse the full Cisco 350 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity supports nonblocking forwarding across the port set, while 41.66 Mpps forwarding establishes the packet-rate limit for 64-byte packets. 382W of shared PoE power requires allocation across the connected endpoints rather than reservation of every port's maximum output. 990 static IPv4 routes bound the configured reachability available at the access edge. SG350-28MP-K9 carries 512 MB of memory, 256 MB of flash and a 1.5 MB packet buffer shared dynamically across its ports. STP/RSTP/MSTP provides loop control, and LACP supports eight aggregation groups with eight active ports per group. Browser configuration offers simple and advanced modes; Textview CLI supports scripted administration, with SNMP available for monitoring. Two fans provide active cooling, and the 0°C to 50°C operating range sets the environmental boundary for installation.
Order SG350-28MP-K9 in new sealed or certified refurbished condition, and specify the required condition and compatible transceivers on the purchase order. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot, PoE output under load on every powered port, optics bay recognition, PSU and fan status, firmware verification and configuration wiped to factory default. ORM warranty is up to a 3-year extended warranty for new units or up to 1 year for certified refurbished units; every condition has 30-day returns, terms apply, while Cisco's separate limited lifetime hardware warranty is bounded by October 31, 2026. Enterprise and volume purchasing accepts POs, with Net-30 for government and RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24x1G PoE+ / 2x1G SFP / 2x1G combo. |
PoE Budget | 382W shared. |
Max Power Draw | 451.2W at 220V AC. |
Cooling | 2 fans. |
Lifecycle Status | End-of-sale October 30, 2021 / Support ends October 31, 2026. |
Replacement PID | C1300-24FP-4G. |
When an endpoint refresh includes higher-draw powered devices, reserve the 60W-capable connections on ports 1, 2, 13 and 14 rather than assigning those devices arbitrarily. Other powered access ports have lower individual ratings. Specify each endpoint's power requirement and intended port assignment before issuing the purchase order.
When local VLAN gateways are being consolidated at a small-business site, the design must fit within 128 IP interfaces rather than treating every VLAN as a routed interface. Reserve interfaces for the required subnets, identify gateways that remain elsewhere, and submit the interface plan with the purchase specification.
When replacement inventory must cover several regional operations, ORM supports stock and RMA handling across the UK, EU, US and MEA. Separate the required quantities by destination and condition rather than issuing an undifferentiated spare order. Confirm the regional stock requirement and replacement arrangement before submitting the PO.
10G uplinks to distribution
SG350-28MP-K9 has fixed 1G uplinks without SFP+ connectivity. C1300-24FP-4X provides 24 Gigabit access ports and four 10G SFP+ uplinks for the higher-speed requirement.
30W allocation on every access port
SG350-28MP-K9 shares 382W across its powered ports; 24 × 30W = 720W cannot be allocated simultaneously. Specify hardware whose published power budget meets the complete endpoint allocation.
Cisco support beyond October 2026
Cisco support for SG350-28MP-K9 ends October 31, 2026. C1300-24FP-4G is the current migration target after the also-discontinued CBS350-24FP-4G-NA, rather than extending the original support horizon.
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| SG350-28MP-K9 |  SG350-28P |  SG350-52P |  SG350-28MP-K9-UK |  SG350-52MP-K9-EU | |
|---|---|---|---|---|---|
| Depth | 257 mm | 257 mm | 350 mm | 257 mm | 350 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | SG350-28MP-K9 | SG350-28P | SG350-52P | SG350-28MP-K9-UK | SG350-52MP-K9-EU |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 451.2W | 263W | 440W | 451.2W | 858W |
| SFP Ports | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 56 Gbps | 56 Gbps | 104 Gbps | 56 Gbps | 104 Gbps |
| Weight | 3.37 kg. | 3.83 kg | 3.81 kg | 3.37 kg | 3.83 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SG350-28MP-K9 identifies a Cisco 350 Series Gigabit managed switch; the 28-port configuration comprises 24 access connections and four uplink connections, and MP distinguishes the 382W PoE+ configuration. K9 remains part of the complete ordering identifier. Regional purchase orders require the appropriate country suffix, such as SG350-28MP-K9-NA for North America.
SG350-28MP-K9 is managed through HTTP/HTTPS web access, Textview CLI over console or SSH/Telnet, SNMP versions 1, 2c and 3, Smart Network Application, FindIT Network Manager with its embedded Probe, FindIT Network Discovery Utility, or Cisco Active Advisor. Choose the administrative path during staging and restrict management access before attaching production endpoints.
Yes, SG350-28MP-K9 reached end-of-sale on October 30, 2021, and Cisco's last date of support is October 31, 2026. The immediate replacement, CBS350-24FP-4G-NA, is also discontinued; its migration path leads to C1300-24FP-4G. Replacement purchasing must distinguish existing-installation sparing from migration to the current successor.
ORM Systems offers SG350-28MP-K9 new sealed or certified refurbished, with up to a 3-year extended warranty for new units or up to 1 year for certified refurbished units. Every condition has 30-day returns; terms apply. Cisco's separate limited lifetime hardware warranty is bounded by its last date of support, October 31, 2026.
SG350-28MP-K9 provides a shared 382W budget across 24 powered access ports; four support 60W PoE, while the remaining ports support 30W each. The complete endpoint allocation must remain within the shared budget. Individual port ratings do not mean every powered port can deliver its maximum output at the same time.
SG350-28MP has four logical 1G uplinks: two dedicated SFP ports and two copper/SFP combo ports. Each combo port permits only one medium at a time. SFP transceivers are separate order items; MGBSX1 supports multimode fiber and MGBLH1 supports single-mode fiber, so specify the required media with the hardware order.
Yes, SG350-28MP-K9 supports static IPv4 routing between VLANs, with 990 static routes and 128 IP interfaces. Static routes require manual next-hop configuration rather than topology exchange with neighboring routers. Allocate VLAN interfaces and static paths before ordering, and keep the routed design within the switch's route and interface limits.
SG350-28MP-K9 replaces the discontinued SG300-28MP family through region-matched orders: SG300-28MP-K9-AR, SG300-28MP-K9-AU, SG300-28MP-K9-CN, SG300-28MP-K9-EU, SG300-28MP-K9-NA and SG300-28MP-K9-UK. For a North American replacement, the corresponding full ordering identifier is SG350-28MP-K9-NA. Match the regional power cord and connection requirements before approving replacement stock for an existing installation.
SG350-28MP-K9 provides 382W of PoE power, while SG350-28P-K9 provides 195W with the same 24 powered access ports. Both models are discontinued. The higher-budget model suits replacement sites with larger endpoint allocations; the lower-budget model matches existing installations whose allocated endpoint load fits within its smaller shared power budget.
SG350-28MP-K9 uses an internal AC supply, while SG350-10MP-K9 uses an external AC adapter. Both are discontinued. Internal-supply replacement orders retain the rack switch's direct AC power arrangement; external-adapter replacement orders require the adapter rather than assuming a direct chassis AC connection. Match the power arrangement to the existing installation.
C1300-24FP-4G has four dedicated 1G SFP uplinks, whereas SG350-28MP-K9 has two dedicated SFP uplinks and two copper/SFP combo uplinks. Both provide 24 Gigabit access ports. The discontinued SG350 model matches legacy replacement requirements; the current Catalyst 1300 model suits purchases requiring four independent fiber uplinks without shared copper connections.
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