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SX550X-12F-K9-EU
Cisco SX550X-12F-K9-EU 550X 12-Port 10 Gigabit SFP+ Switch,...
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SX550X-12F-K9-EU provides managed, fiber-focused switching with ten dedicated 10 Gigabit SFP+ interfaces and two copper/SFP+ combo uplink positions. Each combo position activates one medium at a time, giving twelve simultaneous network connections rather than fourteen. This non-PoE, Layer 2+ member of the Cisco 550X Series occupies a 1U rack position and supports hardware stacking for small-business networks. The uplink connections are fixed, with no removable network card required. A separate Gigabit management interface keeps administrative access outside the production traffic path. The discontinued SG550X-24P-K9-EU supplies PoE+ endpoint power instead; the fiber-focused model connects equipment that receives power separately. Browser-based administration and a full command-line interface accommodate different configuration workflows.
SX550X-12F-K9-EU price is is available on request. Get immediate quote.
Request bulk order quote for SX550X-12F-K9-EU for additional pricing. Browse the full Cisco SX550X Switches series or explore all Cisco products.
240 Gbps switching capacity supports the fixed interface configuration without blocking. 178.56 Mpps forwarding applies to 64-byte packets. RIP v2 provides dynamic route exchange alongside static routing, PBR and VRRP v2/v3, while the IPv4 routing table accommodates 7168 routes. SX550X-12F-K9-EU carries 512 MB of memory and 256 MB of flash; its 3 MB packet buffer is shared dynamically across ports. The SX550X-12F supports 32000 MAC addresses for forwarding-table planning, and STP, RSTP, MSTP and LACP support switched-network integration. Management sessions can use SSH, while SNMP supports monitoring-system integration. An internal universal AC supply accepts 100–240V input. 25.3W worst-case consumption at 220V provides the switch-only allowance for circuit planning, without an endpoint-power allocation. Three primary fans and one redundant fan provide active cooling, so installation planning must accommodate fan airflow and operating noise rather than assume a fanless chassis.
Specify SX550X-12F-K9-EU in new sealed or certified refurbished condition, with quantities and delivery region on the PO. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed links on every port, clean boot, optics bay recognition, PSU status and fan status; firmware is verified and configurations are wiped to factory default. ORM coverage is up to 3-year extended for new units or up to 1 year for certified refurbished units, with 30-day returns on either condition, terms apply; Cisco's separate limited lifetime coverage ends July 31, 2027. Enterprise and volume orders support PO acceptance, government Net-30, and RMA with advance replacement across UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 10 x 10G SFP+ / 2 x 10G combo |
Stacking | Hardware stacking / 8 members |
Max Power Draw | 25.3W at 220V |
Cooling | 3 fans / 1 redundant fan |
Lifecycle Status | End of sale July 30, 2022 |
Replacement PID | C1300-12XS |
An existing 550X installation containing different access speeds can combine Fast Ethernet, Gigabit Ethernet and 10 Gigabit Ethernet members in one hardware stack. Ring and chain arrangements support different cabinet layouts. Before the PO, identify the stack topology, reserve the interconnect interfaces and specify the required connection lengths.
A network refresh that moves local gateway functions onto switching needs an interface inventory, not just a route count. The switch supports 256 IPv4 interfaces, with Layer 3 interfaces configurable on physical ports, LAGs, VLAN interfaces or loopbacks. Check the proposed interface allocation and gateway configuration before specifying quantities.
A multi-branch rollout can use the embedded Cisco Network Plug and Play agent to provision configuration before handover. Dual firmware images support a staged upgrade workflow, while configuration wizards handle common setup tasks. Specify the provisioning method, approved firmware image and acceptance configuration before releasing the purchase order.
Twenty-four simultaneous fiber connections
The switch provides twelve SFP+ interfaces. C1300-24XS provides twenty-four SFP+ interfaces, including four copper-shared positions, for projects requiring a higher fiber-port count in one chassis.
PoE for connected endpoints
The network interfaces do not deliver PoE. Connected endpoints require separate power, so this switch cannot satisfy a purchase requirement for power delivery through its network connections.
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| SX550X-12F-K9-EU |  SX550X-24F-K9-UK |  SX550X-24FT-K9-EU |  SX550X-16FT-K9-EU |  SX550X-24-K9-NA | |
|---|---|---|---|---|---|
| Depth | 257 mm | 350 mm | 350 mm | 257 mm | 350 mm |
| Ethernet Technology | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 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 | SX550X-12F-K9-EU | SX550X-24F-K9-UK | SX550X-24FT-K9-EU | SX550X-16FT-K9-EU | SX550X-24-K9-NA |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 25.3W | 55.5W | 80.2W | 57.7W | 124.6W |
| Switching Capacity | 240 Gbps | 480 Gbps | 480 Gbps | 320 Gbps | 480 Gbps |
| Weight | 3.42 kg | 4.7 kg | 4.84 kg. | 3.79 kg | 5.16 kg |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SX550X-12F-K9-EU identifies the EU-region ordering variant of the Cisco 550X twelve-port 10 Gigabit SFP+ managed switch. SX550X identifies the model group, while 12F corresponds to its twelve SFP+ interfaces; EU selects the country/region variant. Two interfaces share copper connectors, and a separate Gigabit interface provides out-of-band management.
SX550X-12F-K9-EU is managed through an HTTP/HTTPS web interface, Textview CLI over console, SSH or Telnet, SNMP, Smart Network Application, and FindIT Network Manager and Probe. FindIT Network Discovery assists discovery, while an embedded FindIT Network Probe supports network administration. Select the management path and access controls during staging.
SX550X-12F-K9-EU ended sale on July 30, 2022, and its last Cisco support date is July 31, 2027. Software maintenance releases ended July 30, 2023. Remaining Cisco service depends on valid entitlement; purchasing another unit does not restart software maintenance or extend the published support deadline.
ORM Systems offers SX550X-12F-K9-EU new sealed or certified refurbished, with 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 separate limited lifetime hardware warranty is bounded by its last support date, July 31, 2027.
Twelve simultaneous network connections are available on SX550X-12F-K9-EU: ten dedicated SFP+ connections and two copper/SFP+ combo connections. Each combo position activates only one medium at a time. The separate Gigabit management interface is not another production-network connection, so the connection schedule must account for the two shared positions.
SFP-10G-SR and SFP-10G-LR are supported 10G optical options for the Cisco 550X fiber switch. SFP-10G-SR uses multimode fiber, while SFP-10G-LR uses single-mode fiber. Select against the actual fiber type and span, and specify transceivers as separate purchase-order items rather than assuming populated SFP+ cages.
Eight members can form a Cisco 550X hardware stack using standard 10G copper or fiber interconnects. Ring and chain topologies are supported, and LAGs can serve as stacking interconnects. Supported direct-attach cables include SFP-H10GB-CU1M, SFP-H10GB-CU3M and SFP-H10GB-CU5M; specify connection lengths and reserved network interfaces before ordering.
Yes, SX550X-12F-K9-EU routes between VLANs using static routing or RIP v2, with PBR and VRRP also available. The IPv4 limits are 7168 routes and 256 IP interfaces. Specify the required route exchange, gateway redundancy and interface allocation before treating the switch as the local routing boundary.
No, SX550X-12F-K9-EU uses an internal universal AC power supply accepting 100–240V input. The standard package includes a power cord rather than a desktop power adapter. Specify the delivery region and required cord arrangement on the order, particularly when purchasing the EU-region variant for another country.
SG550X-24P-K9-EU provides a 195W PoE+ budget on twenty-four Gigabit copper ports, whereas SX550X-12F-K9-EU does not supply endpoint power. Both models are discontinued. The powered model addresses matching legacy access-switch replacements; the fiber-focused model suits legacy aggregation connections where connected equipment already has a separate power source.
SX550X-24F-K9-EU provides twenty-four SFP+ interfaces, including four shared copper positions, compared with twelve SFP+ interfaces and two shared positions on SX550X-12F-K9-EU. Both models are discontinued. The larger model addresses higher-density legacy fiber installations; the twelve-port model serves matching replacement requirements that do not need additional interface positions.
C1300-12XS is 268 mm wide, while SX550X-12F-K9-EU is 440 mm wide, so the current successor uses a narrower chassis. C1300-12XS follows the discontinued CBS350-12XS-EU in the migration chain. Specify mounting arrangements for a replacement project; the older model remains relevant when a matching legacy spare is required.
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