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SG350X-48P-K9-NA
Cisco SG350X-48P-K9-NA 350X 48-Port Gigabit PoE+ Switch, 4x1...
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SG350X-48P-K9-NA combines 48 Gigabit PoE+ access ports with four fixed 10G uplinks in a managed Layer 2+ switch for small-business networks. Two uplinks are dedicated SFP+ connections, while two use copper/SFP+ combo interfaces with one medium active per pair. The Cisco 350X Series connects wired users and powers IP phones, wireless access points, and surveillance cameras. An internal AC supply powers the Rack-Mount 1U chassis, with no removable uplink module required. The discontinued SG350X-48MP-K9-NA provides a 740W endpoint-power budget for existing deployments with higher combined device demand.
SG350X-48P-K9-NA price for new stock is is available on request. Get immediate quote. SG350X-48P-K9-NA refurb price is $733.09.
Request bulk order quote for SG350X-48P-K9-NA for additional pricing. Browse the full Cisco SG350X Switches series or explore all Cisco products.
176 Gbps switching capacity supports nonblocking forwarding across the integrated interfaces. 130.94 Mpps forwarding at 64-byte packet size defines the packet-processing capacity for small-frame traffic. 382W of shared PoE output must cover the connected endpoint load rather than each port's individual maximum. Static IPv4 and IPv6 routing provide inter-VLAN communication without a dynamic routing protocol. SG350X-48P-K9-NA carries 512 MB of memory and 256 MB of flash for control-plane operation and image storage, while the SG350X-48P hardware shares a 3 MB packet buffer across its ports. A 16000-entry MAC table supports Layer 2 address learning, and 4094 active VLANs support segmentation. STP, RSTP, MSTP, and LACP provide loop control and link aggregation. Browser configuration and a scriptable CLI support administration, with SNMP available for monitoring. Three fans cool the chassis, so installation planning must account for active cooling rather than a fanless enclosure.
Order SG350X-48P-K9-NA in new sealed or certified refurbished condition, and specify the required quantity and uplink accessories on the purchase order. Certified refurbished units are inspected and bench-tested, with power-on and POST, clean boot, rated-speed port links, optics bay recognition, and PoE output verified under load on every powered port; firmware is verified and configuration wiped to factory default. ORM provides up to a 3-year extended warranty on new units, up to 1 year on certified refurbished units, and 30-day returns on every condition; terms apply. Enterprise and volume orders accept POs, with Net-30 for government, RMA with advance replacement, and regional stock/RMA across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G PoE+ / 2 x 10G SFP+ / 2 x 10G Combo |
PoE Budget | 382W shared |
Stacking | Hardware stacking / 4 members |
Replaces | SF550X-48P-K9-NA / End of sale June 18, 2020. |
Lifecycle Status | End of sale October 30, 2021. |
Replacement PID | Current C1300-48P-4X / Discontinued CBS350-48P-4X-NA. |
When an existing 350X stack needs another member, compatibility extends across SG350X, SG350XG, and SX350X hardware. Ring and chain layouts use master and backup control rather than independent configuration for each member. Identify the inter-switch connections and specify the physical stack layout before the purchase order.
When a branch rollout includes local address allocation, the switch can serve IPv4 DHCP pools and relay DHCP traffic across IP domains. UDP relay also supports broadcast-based discovery between routed segments. Define the address pools, relay destinations, and required subnet boundaries in the staging instructions before the purchase order.
When replacement hardware must be staged before a site visit, dual firmware images and front-panel USB file transfer support image and configuration preparation. Configuration files can be edited as text and loaded onto another switch. Specify the approved image, configuration file, and staging checks with the order.
Fanless operation near occupied desks
SG350X-48P-K9-NA uses three fans rather than passive cooling. A requirement for a fanless switch excludes this chassis, including installations beside occupied desks.
Native multigigabit access for endpoints
SG350X-48P-K9-NA limits fixed access ports to 1GbE. Its 10G uplinks do not increase endpoint port speeds, so 2.5G or 5G access requires different hardware.
Cisco support beyond October 2026
SG350X-48P-K9-NA reaches its last date of Cisco support on October 31, 2026. C1300-48P-4X is the current 48-port PoE model at the end of its replacement chain.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| SG350X-48P-K9-NA |  SG350X-48PV-K9 |  SG350XG-24F-K9-EU |  SG350X-12PMV-K9 |  SG350X-24MP-K9 | |
|---|---|---|---|---|---|
| Depth | 350 mm | 350 mm | 350 mm | 257 mm | 350 mm |
| Ethernet Technology | Gigabit Ethernet | Multi-Gigabit (2.5G/5G) | 10 Gigabit Ethernet | Multi-Gigabit (2.5G/5G) | 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 | SG350X-48P-K9-NA | SG350X-48PV-K9 | SG350XG-24F-K9-EU | SG350X-12PMV-K9 | SG350X-24MP-K9 |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 492.3W | 916W | 50.4W | 494.5W | 468.8W |
| Switching Capacity | 176 Gbps | 240 Gbps | 480 Gbps | 200 Gbps | 128 Gbps |
| Weight | 5.82 kg | 5.95 kg | 4.16 kg. | 4.24 kg | 5.69 kg |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SG350X-48P-K9-NA identifies a Cisco 350X Series switch with 48 Gigabit PoE+ access ports; NA selects the regional version for the United States, Canada, Mexico, Colombia, Chile, and remaining Latin American markets. The SG350X family uses Gigabit access with fixed 10 Gigabit uplinks, while P distinguishes powered access.
SG350X-48P-K9-NA offers HTTP/HTTPS web management, console CLI, SSH/Telnet CLI, and SNMP. Additional management paths include Smart Network Application, FindIT Network Manager with an embedded FindIT Network Probe, FindIT Network Discovery Utility, and Active Advisor. Web management has simple and advanced modes; the CLI supports scripting.
SG350X-48P-K9-NA shares 382W across 48 powered ports, with 30W PoE+ on standard powered ports and 60W support on eight selected ports. Port capability does not guarantee simultaneous maximum draw. Specify each endpoint's requested power and allocate the combined load within the shared budget before ordering the powered devices.
SG350X-48P-K9-NA has four fixed 10G uplinks: two dedicated SFP+ ports and two copper/SFP+ combo ports. Each combo pair uses only one medium at a time. SFP-10G-SR= supports multimode fiber, SFP-10G-LR= supports single-mode fiber, and SFP-H10GB-CU1M= provides a 1 m copper connection. Specify media for both link ends.
Cisco 350X Series hardware stacking connects four members as one managed system, using 10G copper or fiber interconnects. SG350X-48P-K9-NA can participate in mixed stacks with SG350X, SG350XG, and SX350X switches. Ring and chain arrangements are supported, and SFP-H10GB-CU1M=, SFP-H10GB-CU3M=, and SFP-H10GB-CU5M= provide supported copper cable choices.
Yes, SG350X-48P-K9-NA routes IPv4 and IPv6 using static routes, supporting 990 IPv4 routes and 245 IPv6 routes. The switch supports 128 IPv4 interfaces and 106 IPv6 interfaces. Routing interfaces can use physical ports, link aggregation groups, VLAN interfaces, or loopbacks; size the static configuration before specifying the network design.
SG350X-48P-K9-NA is discontinued: Cisco ended sales on October 30, 2021, and service ends October 31, 2026. Software maintenance ended October 30, 2022. The immediate replacement, CBS350-48P-4X-NA, is also discontinued. The current replacement chain ends at C1300-48P-4X for new-generation purchases rather than stopping at the earlier replacement.
SG350X-48P-K9-NA replaced SF550X-48P-K9-NA, whose end-of-sale date was June 18, 2020. The older model supplied 48 Fast Ethernet PoE ports; the replacement provides 48 Gigabit PoE+ access ports. Both are now discontinued, so a new-generation refresh should specify C1300-48P-4X rather than either older part number.
SG350X-48MP-K9-NA provides a 740W PoE budget, compared with 382W on SG350X-48P-K9-NA. Both retain 48 Gigabit PoE+ access ports, so the difference is aggregate endpoint power, not additional ports. Both models are discontinued; the P model suits lower combined draws, while the MP model suits higher draws in existing 350X deployments.
SG350X-48P-K9-NA has 48 Gigabit access ports, while SG350X-24MP-K9-NA has 24. Each provides a 382W PoE budget, so density—not a larger aggregate power allocation—is the distinction. Both are discontinued; the 48-port model suits denser existing patching, while the 24-port model suits smaller existing installations with the same overall PoE allocation.
C1300-48P-4X provides four 10G SFP+ uplinks, where SG350X-48P-K9-NA provides two dedicated SFP+ uplinks and two copper/SFP+ combo uplinks. The discontinued 350X model suits existing deployments that use its copper uplink options. The current Catalyst 1300 model suits a new purchase specifying four fiber-facing uplinks and replacing the older switch generation.
SG350X-48P-K9-NA is offered new sealed or certified refurbished. ORM provides up to a 3-year extended warranty on new units, up to 1 year on certified refurbished units, and 30-day returns on every condition; terms apply. Cisco's limited lifetime hardware warranty is bounded by October 31, 2026, when Cisco service ends.
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