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SG550X-24-K9-EU
Cisco SG550X-24-K9-EU 550X 24-Port Gigabit Switch, 4x10G Upl...
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SG550X-24-K9-EU combines 24 Gigabit access ports with four fixed 10G uplinks in a managed Layer 2+, non-PoE 1U rack switch for small-business networks. Two uplinks offer a choice of 10GBase-T copper or SFP+ fiber, while two additional SFP+ connections remain dedicated; each combo pair permits only one active medium at a time. The 550X Series Stackable Managed Switches family supports hardware stacking, bringing multiple physical switches under one management address rather than merely grouping devices in a monitoring view. Workstations and local servers attach through the access interfaces, with administration handled at the device or stack level. The discontinued SG550X-24P-K9-EU differs by adding endpoint power.
SG550X-24-K9-EU price for new stock is is available on request. Get immediate quote. SG550X-24-K9-EU refurb price is $2,042.18.
Request bulk order quote for SG550X-24-K9-EU for additional pricing. Browse the full Cisco 550X Series Stackable Managed Switches series or explore all Cisco products.
128 Gbps switching capacity supports nonblocking forwarding, while 95.23 Mpps describes packet forwarding with 64-byte packets. Static routing and RIP v2 handle routed traffic, with VRRP for gateway redundancy and PBR for next-hop selection. 7168 IPv4 routes set the ceiling when sizing the routing table. A 16000-entry MAC table accommodates learned Ethernet addresses. SG550X-24-K9-EU includes 512 MB of memory, 256 MB of flash, and a 1.5 MB packet buffer shared dynamically across its ports. STP/RSTP/MSTP provide loop-control options, while LACP supports aggregated connections across stack members. The Cisco SG550X-24 offers simple and advanced browser interfaces alongside a scriptable Textview CLI. Dual software images retain an alternate image during firmware changes, while SSH protects remote administration sessions. Internal redundant supply modules are absent; power backup instead uses the external RPS2300 system.
Specify quantity and accessories on the PO for SG550X-24-K9-EU, available new sealed or certified refurbished. Refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, clean boot, optics bay recognition, PSU and fan status, with firmware verified and configurations wiped to factory default. New units carry up to a 3-year extended ORM warranty; certified refurbished units carry up to 1 year, with 30-day returns on every condition, terms apply; Cisco's separate limited lifetime coverage ends July 31, 2027. Enterprise and volume orders support PO acceptance, Net-30 for government, RMA with advance replacement, and regional stock/RMA in the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24 x 1G / 4 x 10G, including 2 combo |
Stacking | Hardware stacking / 8 members |
Max Power Draw | 33.5W |
Cooling | 1 active fan / 1 redundant fan |
Replaces | SF550X-24-K9-EU / End of sale June 18, 2020 |
Replacement PID | C1300-24T-4X / CBS350-24T-4X-EU (discontinued) / SG550X-24-K9-EU-RF (Cisco remanufactured). |
When adding a member to an existing 550X stack, confirm the installed model mix and the ports assigned to interconnects. SF550X, SG550X, SG550XG, and SX550X can share a hybrid stack, with ring or chain topology. Specify the partner models and interconnect layout before the PO.
When consolidating inter-VLAN forwarding onto the access switch, count routed interfaces as well as network segments. The switch supports 256 IP interfaces, including physical ports, LAGs, VLAN interfaces, and loopbacks. Check the interface inventory against the intended addressing plan before specifying the routing configuration on the PO.
When staging equipment for later installation, use the front-panel USB Type-A slot for image and configuration transfer rather than depending on the destination network being available. The RJ-45 console also provides local access. Specify the console connection, staging files, and required installation accessories before releasing the equipment order.
PoE power for connected endpoints
SG550X-24-K9-EU provides data connectivity without PoE output. C1300-24FP-4X is a current 24-port Gigabit alternative with full PoE and four 10G SFP+ uplinks.
Fanless operation in occupied rooms
SG550X-24-K9-EU uses active cooling with a redundant fan, so the chassis is not fanless. Acoustic output reaches 49.3 dB at an operating temperature of 50°C.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| SG550X-24-K9-EU |  SG550X-24MPP |  SG550X-24-K9-NA |  SG550X-24MPP-K9-EU |  SG550X-48MP-K9-EU | |
|---|---|---|---|---|---|
| Depth | 257 mm | 450 mm | 257 mm | 450 mm | 450 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 | SG550X-24-K9-EU | SG550X-24MPP | SG550X-24-K9-NA | SG550X-24MPP-K9-EU | SG550X-48MP-K9-EU |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 33.5W | 870.1W | 33.5W | 870.1W | 893.1W |
| Switching Capacity | 128 Gbps | 128 Gbps | 128 Gbps | 128 Gbps | 176 Gbps |
| Weight | 3.27 kg. | 6.19 kg | 3.27 kg | 6.19 kg | 6.69 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SG550X-24-K9-EU identifies a 550X Gigabit stackable managed switch: SG550X is the Gigabit model group, 24 is the access-port count, and EU is the regional suffix used for the EU and additional markets. Retain K9 in the full order identifier when requesting matching stock.
SG550X-24-K9-EU supports HTTP/HTTPS web management, console or SSH/Telnet CLI, SNMPv1/v2c/v3, Smart Network Application, FindIT Network Manager, embedded FindIT Network Probe, FindIT Network Discovery Utility, and Active Advisor. The browser interface offers simple and advanced modes with a customizable dashboard; Textview provides full and menu CLI options.
No, SG550X-24-K9-EU does not supply PoE to phones, cameras, or wireless access points. Connected endpoints need their own power source or a separately provided power arrangement. The access ports carry Ethernet data only, so do not size an endpoint power budget against this model.
SG550X-24-K9-EU provides four fixed 10G uplinks: two dedicated SFP+ ports and two 10GBase-T/SFP+ combo ports. Each combo port accepts either its copper connection or its fiber connection, not both simultaneously. The copper and SFP+ uplinks support 1G as well as 10G operation, allowing different link-speed requirements.
SG550X-24-K9-EU supports eight switches in one hardware stack, using 10G copper or fiber interconnects and ring or chain topology. Supported 10G copper cable options include SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M. Allocate uplink ports to stacking before sizing the remaining network connections for the installation.
SG550X-24-K9-EU supports IPv4 static routing, RIP v2, VRRP, and PBR, with 7168 IPv4 routes and 256 IP interfaces. IPv6 static routing supports 1792 routes. Routing can use physical ports, LAGs, VLAN interfaces, or loopbacks, so verify both route and interface requirements before ordering.
SG550X-24-K9-EU is discontinued: Cisco end of sale was July 30, 2022, and the last date of support is July 31, 2027. Software maintenance ended July 30, 2023. The direct replacement CBS350-24T-4X-EU is also discontinued; C1300-24T-4X is the current endpoint of the migration chain.
SG550X-24-K9-EU replaced SF550X-24-K9-EU, whose Cisco end-of-sale date was June 18, 2020. The older model has 24 Fast Ethernet access ports; the replacement changes those access connections to Gigabit Ethernet. Both belong to the 550X stackable family, but both products are now discontinued.
SG550X-24P-K9-EU supplies PoE on 24 access ports with a shared 195W budget; SG550X-24-K9-EU supplies no endpoint power. The powered version supports 60W on eight ports, subject to that budget. Both models are discontinued: the powered configuration serves compatible endpoints, while the unpowered model serves externally powered devices.
SG550X-48-K9-EU has 48 Gigabit access ports, while SG550X-24-K9-EU has 24; both carry four 10G uplinks. Both models are discontinued. The 48-port configuration suits a higher endpoint count, while the 24-port model suits a smaller port requirement when matching an existing installation.
C1300-24T-4X is the current migration endpoint for discontinued SG550X-24-K9-EU, reached through discontinued CBS350-24T-4X-EU. The current model retains 24 Gigabit access ports and four 10G SFP+ uplinks. The legacy model serves like-for-like installed-base requirements; C1300-24T-4X serves buyers moving the purchase to the current successor.
ORM Systems offers SG550X-24-K9-EU new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Every condition includes 30-day returns; terms apply. Cisco's limited lifetime hardware warranty is separate, with service ending July 31, 2027, subject to eligibility.
The 550X provides power redundancy through an external RPS2300 system rather than two internal supply modules. RPS2300 can connect to six 550X switches. The switch changes to the external backup source if AC input or the internal supply fails, so include backup power hardware separately when planning redundancy.
SG550X-24-K9-EU uses a 1U rack chassis measuring 440 mm wide, 44 mm high, and 257 mm deep, with a 3.27 kg weight. Cooling uses one active fan plus one redundant fan. Operating temperature spans 0°C to 50°C, so verify cabinet space and ambient temperature before installation.
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