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SG550X-24-K9-NA
Cisco SG550X-24-K9-NA 550X 24-Port Gigabit Switch, 4x10G Upl...
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SG550X-24-K9-NA combines 24 Gigabit access ports with mixed copper and fiber 10G uplinks in a managed Layer 2+ switch for separately powered business endpoints. Two dedicated SFP+ interfaces sit beside two 10GBASE-T/SFP+ combo interfaces, providing fixed uplink connections without an additional network card. The 1U chassis belongs to the Cisco 550X Series and provides access connectivity for small and medium business networks. This 24-port Gigabit stackable switch supplies no endpoint power; the discontinued SG550X-24P-K9-NA adds PoE+ with a shared 195W budget. Copper access connections serve locally powered equipment, while the uplink media can match copper or fiber aggregation connections already present in the installation.
SG550X-24-K9-NA price for new stock is is available on request. Get immediate quote. SG550X-24-K9-NA refurb price is $929.46.
Request bulk order quote for SG550X-24-K9-NA for additional pricing. Browse the full Cisco 550X Series Stackable Managed Switches series or explore all Cisco products.
128 Gbps switching capacity supports the built-in interfaces without an additional forwarding module. 95.23 Mpps forwarding handles 64-byte packets at the published maximum rate. Static routing and RIP v2 provide IP forwarding, while PBR selects next hops through traffic policies and VRRP supports gateway redundancy. 7168 IPv4 routes provide the routing-table ceiling for network planning. CPU memory totals 512 MB, with 256 MB of flash for software and configuration storage. Cisco SG550X-24 shares a 1.5 MB packet buffer across its ports and provides eight hardware queues for traffic scheduling. STP/RSTP/MSTP handle loop prevention, and LACP supports aggregated links. SG550X-24-K9-NA supports SNMPv3 for authenticated management and maintains 16000 MAC entries for address learning. 33.5W maximum system consumption provides the chassis allowance for electrical sizing. Cooling uses a primary fan and a redundant fan; the internal AC supply is not a dual internal hot-swappable PSU arrangement.
Specify SG550X-24-K9-NA as new sealed or certified refurbished, identifying the condition and required interconnects on the purchase order. Certified refurbished units are inspected and bench-tested for power-on and POST, clean boot, rated-speed links on every port, optics bay recognition, PSU status, and fan status; firmware is verified and configuration wiped to factory default. ORM offers 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 separate Limited Lifetime coverage is subject to entitlement and ends July 31, 2027. Enterprise and volume orders support accepted POs, Net-30 for government, and RMA with advance replacement, with regional stock and RMA across UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24 x 1G / 2 x 10G SFP+ / 2 x 10G Combo |
Stacking | Hardware stacking / Eight members |
Max Power Draw | 33.5W |
Replaces | SF550X-24-K9-NA; end of sale June 18, 2020 |
Lifecycle Status | End of sale July 30, 2022 |
Replacement PID | C1300-24T-4X |
When several business sites need a common configuration, text-editable configuration files and SCP autoconfiguration provide a repeatable staging method. Cisco Network Plug and Play also supports PnP Connect. Define the configuration template, credentials, initial network reachability, and staging responsibilities before specifying the rollout work on the purchase order.
When gateway interfaces must move onto an existing business access installation, the switch supports 256 IP interfaces on physical ports, link aggregation groups, VLAN interfaces, or loopback interfaces. Separate the intended gateway layout from endpoint connectivity, then check interface requirements and gateway redundancy settings before approving the hardware quantity.
When a lab needs visibility into several connections during fault investigation, port mirroring can send traffic from eight source ports to one destination. RSPAN extends mirroring across a Layer 2 domain, and sFlow exports traffic samples. Specify the capture connection, collector, and mirroring arrangement before ordering the staging equipment.
Switch-delivered power for connected endpoints
SG550X-24-K9-NA supplies no PoE. C1300-24P-4X provides 24 Gigabit PoE access ports with four 10G SFP+ uplinks; size endpoint power requirements before selecting that replacement.
Cisco support beyond July 2027
Cisco support for SG550X-24-K9-NA ends July 31, 2027. C1300-24T-4X is the current replacement-chain endpoint; confirm the required service term when specifying current-model procurement.
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| SG550X-24-K9-NA |  SG550X-48MP-K9-UK |  SG550XG-24T |  SG550X-48MP-K9-NA |  SG550X-48P-K9-NA | |
|---|---|---|---|---|---|
| Depth | 257 mm | 450 mm | 450 mm | 450 mm | 350 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | 10 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 | SG550X-24-K9-NA | SG550X-48MP-K9-UK | SG550XG-24T | SG550X-48MP-K9-NA | SG550X-48P-K9-NA |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 33.5W | 893.1W | 143.9W | 893.1W | 494.3W |
| Switching Capacity | 128 Gbps | 176 Gbps | 480 Gbps | 176 Gbps | 176 Gbps |
| Weight | 3.27 kg | 6.69 kg | 6.38 kg | 6.69 kg | 5.82 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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SG550X-24-K9-NA identifies a non-PoE Gigabit member of the 550X family: SG550X is the model line, 24 is the access-port count, and NA is the regional suffix. NA covers the United States, Canada, Mexico, Colombia, Chile, and the rest of Latin America, with separate codes for Brazil and Argentina.
SG550X-24-K9-NA supports HTTP/HTTPS web management, full or menu CLI through its RJ-45 console or SSH/Telnet, and SNMP versions 1, 2c, and 3. Network-level options include Smart Network Application, FindIT Network Manager with an embedded FindIT Network Probe, FindIT Network Discovery Utility, Active Advisor, and Cisco Network Plug and Play with PnP Connect.
SG550X-24-K9-NA reached end of sale on July 30, 2022, and Cisco support ends July 31, 2027. Software maintenance ended July 30, 2023. Its original replacement, CBS350-24T-4X-NA, is also discontinued; the migration chain now leads to C1300-24T-4X, distinguishing legacy-stock purchases from current-model procurement.
SG550X-24-K9-NA replaces discontinued SF550X-24-K9-NA, moving 24 access ports from Fast Ethernet to Gigabit Ethernet. The older model reached end of sale on June 18, 2020. Both use 10G uplinks, so access-port speed, rather than an increase in uplink speed, distinguishes that migration.
A Cisco 550X Series hardware stack supports eight members, including mixed SF550X, SG550X, SG550XG, and SX550X units. Ring and chain arrangements use 10G copper or fiber connections. Supported direct-attach cable options include SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M; reserve front-panel interfaces for the selected interconnect arrangement.
SG550X-24-K9-NA provides four fixed 10G uplinks: two dedicated SFP+ interfaces and two 10GBASE-T/SFP+ combo interfaces. Each combo supports one active medium at a time, not two simultaneous connections. Fiber links can use SFP-10G-SR with multimode fiber or SFP-10G-LR with single-mode fiber; specify optics separately.
SG550X-24P-K9-NA supplies PoE+ with a shared 195W budget, while SG550X-24-K9-NA supplies no endpoint power. Both models are discontinued. The non-PoE model suits separately powered devices; the PoE variant suits legacy installations needing switch-delivered power, subject to an endpoint-by-endpoint check of the shared budget.
SG550X-48-K9-NA has 48 Gigabit access ports, versus 24 on SG550X-24-K9-NA; both models are discontinued. Access-port density distinguishes these options when matching existing installations. The 24-port model accommodates fewer copper connections per chassis, while the 48-port version suits legacy wiring schedules requiring more access connections.
C1300-24T-4X has four 10G SFP+ uplinks, while SG550X-24-K9-NA combines two dedicated SFP+ interfaces with two 10GBASE-T/SFP+ combo uplinks. C1300-24T-4X is the current replacement-chain endpoint. The legacy model accommodates existing copper uplink connections; the current model suits procurement standardized on four SFP+ uplink interfaces.
ORM offers SG550X-24-K9-NA new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco's separate Limited Lifetime warranty is bounded by its July 31, 2027 support end.
United States
