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SG350-28P-K9
Cisco SG350-28P-K9 SG350 24-Port Gigabit PoE+ Switch, 2x1G S...
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SG350-28P-K9 is a 24-port Gigabit PoE+ managed switch with fixed 1G uplinks for small-business access closets. The rack-mount 1U Cisco SG350-28P provides 24 10/100/1000 PoE+ access ports, four of which support 60W PoE, plus two 1G SFP ports and two 1G copper/SFP combo uplinks. Layer 2+ operation covers VLAN, STP/RSTP/MSTP, LACP, PBR and static IPv4 routing at the edge. In the Cisco 350 Series Managed Switches family, this 24-port Gigabit PoE+ managed switch fits IP phones, wireless access points and cameras that share a finite PoE allocation. SG350-28MP-K9 keeps the same 24-port layout and raises the PoE budget to 382W for higher endpoint draw.
SG350-28P-K9 price for new stock is $1,548.75, a 50% saving from the Cisco list price of $3,097.50. SG350-28P-K9 refurb price is $385.88. SG350-28P-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for SG350-28P-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 copper and fiber uplink interfaces, and 41.66 Mpps forwarding rate is published for 64-byte packets. 195W of PoE power is shared across 24 powered ports; each standard RJ-45 network port can deliver 30W, while four selected ports can deliver 60W until the switch budget is reached. Static IPv4 routing supports up to 990 routes, with IPv6 routing, PBR, Layer 3 interfaces, DHCP relay and UDP relay available for routed edge designs. SG350-28P-K9 carries 512 MB DRAM, 256 MB flash, a 16000-entry MAC table, 4094 VLAN support and a 1.5 MB shared packet buffer. Management uses HTTP/HTTPS, SSH, a full Textview CLI, menu-based CLI, RADIUS/TACACS+ services, Cisco FindIT Network Manager support and a Cisco Standard RJ45 console port. The platform is not a physical stacking switch, and the fixed 1G SFP bays accept MGBSX1, MGBLX1, MGBLH1, MGBT1, GLC-LH-SMD and GLC-BX-U optics.
SG350-28P-K9 is available from ORM Systems new sealed or certified refurbished, with PO accepted, Net-30 for government, RMA with advance replacement and regional stock/RMA in the UK, EU, US and MEA. Certified refurbished managed units are inspected and bench-tested; firmware is verified, configuration is wiped to factory default, every port links at rated speed, PoE output is verified under load, optics bay recognition is checked and fan status is confirmed. Order this switch with the required SFP transceivers and the regional power cord. New hardware can include up to 3-year extended ORM warranty, certified refurbished up to 1 year, and every condition has 30-day returns; terms apply.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24 x 1G PoE+, 2 SFP, 2 combo |
PoE Budget | 195W; four 60W ports |
Max Power Draw | 263W |
Cooling | 2 fans |
Lifecycle Status | Last support 31 October 2026 |
Replacement PID | CBS350-24P-4G-NA; then C1300-24P-4G |
A 24-port closet with IP phones, access points or cameras can use the 24 10/100/1000 PoE+ access ports while reserving the two SFP and two combo uplinks for fiber or copper handoff. Size the 195W shared budget and any 60W endpoints before the PO.
A site standardizing from SG300-28PP can keep a 24-port Gigabit PoE access shape while moving to the Cisco SG350 Product Family. Match the regional suffix, replace unsupported optics with MGBSX1, MGBLX1, MGBLH1, MGBT1, GLC-LH-SMD or GLC-BX-U, and check the 31 October 2026 support date.
A multi-site small-business rollout can stage browser GUI, Textview CLI and SSH configurations against 512 MB DRAM, 256 MB flash and text-editable configuration files. Keep one regional spare per site group, verify console access, and include any required 1G SFP transceivers on the purchase order.
10G uplinks to distribution
SG350-28P-K9 uplinks are 1G SFP and 1G copper/SFP combo only. Use C1300-24P-4X for a current 24-port PoE model with 4x10G SFP+.
Full 30W on every port
The 195W budget is below 24 x 30W, so all ports cannot draw full PoE+ simultaneously. Use C1300-24FP-4G for a current Full PoE 24-port model.
Cisco service after 2026
Cisco service for this model ends 31 October 2026, while the named CBS350 successor is also discontinued. Use C1300-24P-4G for the current migration path.
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| SG350-28P-K9 |  CBS350-48NGP-4X |  SF350-24 |  SG350-28SFP |  Cisco CBS350-8S-E-2G | |
|---|---|---|---|---|---|
| Depth | 257 mm | 350 mm | 11.6 inches | 12 inches | 9.8 inches |
| Ethernet Technology | Gigabit Ethernet | Multi-Gigabit (2.5G/5G) | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-mount | Rack-mount | Desktop / Rack-mount |
| Height | 44 mm | 44 mm | 1.73 inches | 1.75 inches | 1.7 inches |
| Manufacturer Part Number | SG350-28P-K9 | CBS350-48NGP-4X | SF350-24 | SG350-28SFP | Cisco CBS350-8S-E-2G |
| Memory | 512 MB | 512 MB DRAM / 256 MB Flash | 256 MB | 256 MB | 256 MB |
| Switching Capacity | 56 Gbps | 240 Gbps | 56 Gbps | 64 Gbps | 20 Gbps |
| Weight | 3.83 kg | 5.95 kg | 12 lbs | 12 lbs | 12 lbs |
| Width | 440 mm | 440 mm | 17.3 inches | 17.3 inches | 17.3 inches |
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SG350-28P-K9 is a Cisco SG350 28-port Gigabit PoE managed switch, sold as a regional SKU such as SG350-28P-K9-NA in the United States. The hardware provides 24 10/100/1000 PoE+ access ports, two 1G SFP ports, two 1G copper/SFP combo uplinks and a 195W PoE budget.
Yes, SG350-28P-K9 supports PoE+ on 24 10/100/1000 access ports with a 195W shared budget. Four selected RJ-45 network ports support 60W PoE, while the other powered RJ-45 ports can deliver up to 30W until the switch budget is reached.
SG350-28P-K9 has four fixed 1G uplink positions: two dedicated SFP ports and two 1G copper/SFP combo ports. Each combo port has one RJ-45 Ethernet interface and one SFP slot, with only one side of the combo active at a time.
SG350-28P-K9 supports MGBSX1, MGBLX1, MGBLH1, MGBT1, GLC-LH-SMD and GLC-BX-U in the fixed 1G SFP bays. Select the optic by media type and distance; the base switch includes SFP cages but not a transceiver for each fiber run.
SG350-28P-K9 is managed through HTTP/HTTPS browser access, a full Textview CLI, a menu-based CLI, SSH, a Cisco Standard RJ45 console port and Cisco FindIT Network Manager support. RADIUS and TACACS+ are available for administrator authentication, and configuration files are text-editable for staging.
SG350-28P-K9 identifies the SG350-28P model in the Cisco 350 managed switch family, with the row describing a 28-port Gigabit PoE managed switch. The base order ID uses K9, and a country or region suffix such as -NA completes the orderable PID.
SG350-28P-K9 is past end of sale, with the last Cisco order date on 30 October 2021 and last ship date on 28 January 2022. Cisco service and support remain tied to the published hardware lifecycle and end on 31 October 2026.
SG350-28P-K9 does not use a Catalyst license tier such as LAN Base, IP Base, Network Essentials or Network Advantage. The managed feature set runs in the Cisco 350 embedded software, so the purchase decision centers on hardware condition, regional suffix, optics and support term.
SG350-28P-K9 supports Layer 2+ routing with static IPv4 routes up to 990 entries, IPv6 routing, Layer 3 interfaces, PBR, DHCP relay and UDP relay. Dynamic routing protocols such as OSPF, EIGRP, IS-IS and BGP are not part of this platform.
SG350-28P-K9 replaced SG300-28PP in the 95-to-500 Series switching transition, with SG300-28PP showing an end-of-sale date of 2 August 2018. Match the regional suffix during replacement, because Cisco regional PIDs append country codes such as -NA, -EU, -UK or -JP.
SG350-28P-K9 is available from ORM Systems in New sealed and Certified refurbished condition. Cisco lists a limited lifetime hardware warranty, but Cisco service ends 31 October 2026; ORM offers up to 3-year extended warranty on new, up to 1 year on refurbished and 30-day returns; terms apply.
SG350-28MP-K9 provides a 382W PoE budget where SG350-28P-K9 provides 195W, while both use 24 Gigabit PoE+ access ports, four 60W-capable ports, two 1G SFP ports and two 1G copper/SFP combo uplinks. Choose SG350-28MP-K9 for higher shared PoE draw, and SG350-28P-K9 for lower powered loads.
SG350-28P-K9 adds 24 PoE+ access ports and a 195W PoE budget, while SG350-28-K9 is the non-PoE 24-port Gigabit model with the same two 1G SFP ports and two 1G copper/SFP combo uplinks. Choose SG350-28P-K9 for powered endpoints, and SG350-28-K9 for data-only access.
C1300-24P-4G is the current Catalyst 1300 migration product with four 1G SFP uplinks, where SG350-28P-K9 uses two 1G SFP ports plus two 1G copper/SFP combo ports. Choose C1300-24P-4G for a current lifecycle path, and SG350-28P-K9 for matching an installed SG350 standard.
United States
