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SG350X-24P-K9
Cisco SG350X-24P-K9 350X 24-Port Gigabit PoE+ Switch, 4x10G...
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SG350X-24P-K9 is a managed Layer 2+ access switch with 24 Gigabit PoE+ ports and four fixed 10G uplinks in a rack-mount 1U chassis. Two dedicated SFP+ uplinks sit alongside two copper/SFP+ combo interfaces; each combo interface operates through either its copper connection or its fiber cage, not both simultaneously. The Cisco 350X Series Stackable Managed Switches family serves small-business networks connecting workstations, IP phones, and wireless access points. Hardware stacking joins four members under single-system management. The discontinued SG350X-24MP-K9-NA provides a 382W PoE budget as the nearest higher-power sibling, retaining the same access-port count and uplink arrangement.
SG350X-24P-K9 price for new stock is $1,085.70, a 25.5% saving from the Cisco list price of $1,457.00. SG350X-24P-K9 refurb price is $519.72. SG350X-24P-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for SG350X-24P-K9 for additional pricing. Browse the full Cisco SG350X Switches series or explore all Cisco products.
128 Gbps switching capacity accommodates traffic across the access and uplink interfaces, while 95.23 Mpps forwarding handles 64-byte packets at wire speed. 195W of shared PoE output requires endpoint demand to be allocated rather than assuming maximum draw on every powered port. SG350X-24P-K9 uses 512 MB of DRAM and 256 MB of flash for control functions and stored firmware, with a 1.5 MB packet buffer shared across interfaces. Static IPv4 routing supports 990 routes and 128 IP interfaces for inter-VLAN traffic; dynamic routing is not included in the static-routing feature set. The 350X Series includes STP/RSTP/MSTP and LACP for loop prevention and link aggregation. Its 16000-entry MAC table bounds learned-address scale, while browser management and Textview CLI provide configuration access. Worst-case AC consumption reaches 268.3W at 110V with PoE enabled, providing the load figure for circuit and UPS sizing. Two fans cool the chassis within its 0°C to 50°C operating range.
Order SG350X-24P-K9 in new sealed or certified refurbished condition, specifying quantities and the required condition 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. 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. Submit quantities and condition requirements for enterprise or volume orders; PO accepted, Net-30 for government, and RMA with advance replacement apply across UK, EU, US, and MEA stock/RMA regions.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24x1G PoE+ / 2x10G combo / 2x10G SFP+ |
PoE Budget | 195W shared |
Stacking | Hardware stacking / Four members |
Max Power Draw | 268.3W at 110V with PoE |
Lifecycle Status | End-of-sale October 30, 2021 |
Replacement PID | C1300-24P-4X |
When an endpoint rollout includes higher-draw equipment, SG350X-24P-K9 has four access ports supporting 60W PoE, while the other powered access ports deliver a maximum of 30W each. Assign higher-draw devices to the eligible ports, then size their combined demand before specifying the endpoint inventory on the purchase order.
When several locations need the same configuration, the 350X Series supports text-editable configuration files, secure SCP transfer, and Network Plug and Play provisioning. Standardize the configuration file and management access settings during staging, then specify the provisioning workflow and site-specific configuration assignments before submitting the consolidated purchase order.
When a lab or acceptance test needs traffic visibility, the 350X Series can mirror eight source ports to one destination port and retain dual firmware images. Reserve the analyzer connection and define the image-selection procedure before specifying the staging configuration and test equipment on the purchase order.
Six simultaneous 10G uplink connections
SG350X-24P-K9 provides four independent 10G uplink interfaces. Its two copper connections share interfaces with SFP+ cages and cannot operate simultaneously with those cages.
Fanless operation in occupied rooms
SG350X-24P-K9 uses two cooling fans rather than passive cooling. A procurement requirement for a fanless chassis excludes this model from the equipment schedule.
Manufacturer support after October 2026
SG350X-24P-K9 reaches its last date of support on October 31, 2026. For current-generation procurement, its migration chain ends at C1300-24P-4X.
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| SG350X-24P-K9 |  SG350XG-2F10 |  SG350X-48 |  SG350X-24PD |  SG350XG-24T | |
|---|---|---|---|---|---|
| Depth | 350 mm | 17 inches | 11 inches | 11.1 inches | 16.5 inches |
| Ethernet Technology | Gigabit Ethernet | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GBase-T |
| Flash Memory | 256 MB | 64 MB | 256 MB | 64 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-mount | Rack-mount | Rack-mount | Desktop / Rack-mount |
| Height | 44 mm | 1.75 inches | 1.73 inches | 1.75 inches | 1.73 inches |
| Manufacturer Part Number | SG350X-24P-K9 | SG350XG-2F10 | SG350X-48 | SG350X-24PD | SG350XG-24T |
| Memory | 512 MB | 256 MB | 128 MB | 256 MB | 256 MB |
| Switching Capacity | 128 Gbps | 56 Gbps | 104 Gbps | 56 Gbps | 320 Gbps |
| Weight | 4.93 kg | 11 lbs | 16.8 lbs | 13.5 lbs | 18 lbs |
| Width | 440 mm | 17.3 inches | 17.5 inches | 17.3 inches | 17.3 inches |
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SG350X-24P-K9 identifies the 350X family's 24-port Gigabit PoE+ model with fixed 10G uplinks. SG350X names the switch family, 24 gives the access-port count, and P identifies the powered variant. Regional orders append a country suffix, such as SG350X-24P-K9-NA for North America.
The Cisco 350X Series supports HTTP/HTTPS web management, console or SSH/Telnet access to full and menu CLI, SNMP v1/2c/3, Smart Network Application, FindIT Network Manager with an embedded Probe, and Active Advisor. Network Plug and Play handles provisioning. Specify management access settings and the intended administration workflow before staging.
SG350X-24P-K9 is discontinued: Cisco ended sales on October 30, 2021, and the last date of support is October 31, 2026. Software maintenance ended October 30, 2022. The replacement chain passes through discontinued CBS350-24P-4X-NA and ends at C1300-24P-4X for current-generation procurement.
SG350X-24P-K9 is offered new sealed or certified refurbished, with ORM warranties of up to 3-year extended coverage for new units and up to 1 year for refurbished units. Both conditions have 30-day returns; terms apply. Cisco's limited lifetime hardware warranty is bounded by the last date of support, October 31, 2026.
SG350X-24P-K9 replaces discontinued SF550X-24P-K9-AR, SF550X-24P-K9-AU, SF550X-24P-K9-BR, SF550X-24P-K9-EU, SF550X-24P-K9-NA, and SF550X-24P-K9-UK, whose end-of-sale date was June 18, 2020. The migration changes 10/100 access connections to Gigabit Ethernet. Match the predecessor's regional suffix when specifying the corresponding replacement ordering variant.
SG350X-24P-K9 provides a shared 195W PoE budget across 24 powered access ports. Four ports support 60W PoE, and the other powered ports support 30W maximum. Those per-port limits are not simultaneous full-load guarantees; allocate endpoint demand against the total budget when sizing the order.
SG350X-24P-K9 has four fixed 10G uplink interfaces: two dedicated SFP+ ports and two copper/SFP+ combo ports. Each combo interface permits one active medium at a time. Fiber connections require separately ordered optics, such as SFP-10G-SR= or SFP-10G-LR=, selected for the fiber type and distance.
SG350X-24P-K9 supports a four-member hardware stack using 10G copper or fiber interfaces. SG350X, SG350XG, and SX350X models can share a stack, with ring or chain topology. Supported direct-attach options include SFP-H10GB-CU1M=, SFP-H10GB-CU3M=, and SFP-H10GB-CU5M=; specify cable length and topology before ordering.
SG350X-24P-K9 supports static IPv4 routing with 990 routes and 128 IP interfaces, plus static IPv6 routing with 245 routes and 106 IPv6 interfaces. Physical ports, LAGs, VLAN interfaces, and loopback interfaces can host routed interfaces. Specify inter-VLAN routes and next-hop configuration explicitly during staging.
SG350X-24P-K9 fits a 1U rack position, measuring 440 mm wide, 44 mm high, and 350 mm deep, with a weight of 4.93 kg. A mounting kit is included in the base package. Two fans provide cooling, so allow rack airflow and check cabinet depth before confirming installation accessories.
SG350X-24P-K9 reaches 268.3W worst-case AC consumption at 110V with PoE enabled; the 220V figure is 258.8W. The corresponding system-only worst-case figures are 48.8W and 49.3W. Size circuit and UPS loads using the with-PoE figure for the intended input voltage rather than substituting the endpoint power budget.
SG350X-24MP-K9-NA provides a 382W PoE budget, compared with 195W on SG350X-24P-K9. Both models are discontinued and retain the same access-port count. The lower-budget model suits an existing endpoint plan within that limit; the higher-budget sibling suits a larger allocated power total.
SG350X-48P-K9-NA has 48 Gigabit PoE+ access ports, while SG350X-24P-K9 has 24. Both are discontinued models in the 350X family. The 24-port chassis suits the smaller connection inventory; the 48-port variant suits a denser inventory when the purchase is specifically for that older switch generation.
C1300-24P-4X provides four 10G SFP+ uplinks, whereas SG350X-24P-K9 uses two dedicated SFP+ uplinks and two copper/SFP+ combo interfaces. The discontinued SG350X-24P-K9 suits existing installations requiring native copper combo connections; current C1300-24P-4X suits current-generation procurement specifying four SFP+ uplink interfaces.
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