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SX550X-24-K9-EU
Cisco SX550X-24-K9-EU 550X 20-Port 10 Gigabit Switch, 4x10G...
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SX550X-24-K9-EU is a managed, non-PoE 10 Gigabit Ethernet switch with 20 dedicated copper access ports and four additional copper/SFP+ combo connections. The fixed uplink architecture supports copper or fiber connections without a removable uplink card, while each combo pair permits only one active medium. This 1U member of the Cisco 550X Series serves small-business server, storage, and access-switch aggregation requirements. Static routing and RIP v2 provide Layer 2+ functionality alongside Ethernet switching. Copper connections support both Gigabit and 10 Gigabit operation, allowing connected equipment to retain its supported link speed. The discontinued SX550X-24F-K9-EU instead provides 20 dedicated SFP+ connections and four combo connections, distinguishing the fiber-focused sibling from this copper-focused configuration.
SX550X-24-K9-EU price for new stock is is available on request. Get immediate quote. SX550X-24-K9-EU refurb price is $4,594.91.
Request bulk order quote for SX550X-24-K9-EU for additional pricing. Browse the full Cisco SX550X Switches series or explore all Cisco products.
480 Gbps switching capacity provides the switching fabric for the available network connections. 240 Mpps forwarding performance is specified for 64-byte packets, giving packet-rate sizing a separate measure from aggregate bandwidth. Static IPv4 routing and RIP v2 handle intersubnet forwarding, while VRRP versions 2 and 3 support redundant default gateways and PBR controls next-hop selection. The address table accommodates 32000 MAC entries; routing resources support 7168 IPv4 routes and 256 IP interfaces. SX550X-24-K9-EU combines 512 MB of memory with 256 MB of flash, keeping working memory separate from image storage. A dynamically shared 3 MB packet buffer serves the ports rather than assigning a fixed buffer allocation to each connection. STP/RSTP/MSTP provide spanning-tree options, and LACP supports link aggregation. Five fans operate in a four-plus-one redundant arrangement. An internal universal AC supply powers the chassis; power redundancy uses an external RPS rather than a second internal supply.
SX550X-24-K9-EU is available new sealed or certified refurbished; new orders carry up to a 3-year extended warranty, certified refurbished orders carry up to a 1-year warranty, and every condition includes 30-day returns, with terms applying. Refurbished units are inspected and bench-tested for power-on, POST, clean boot, rated-speed port links, optics bay recognition, PSU status, and fan status; firmware is verified and configurations are wiped to factory default. Specify the condition, quantity, required accessories, and warranty term on the purchase order. ORM Systems accepts POs, offers Net-30 for government, and supports enterprise and volume orders with RMA advance replacement and regional stock/RMA coverage across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 20 x 10G copper / 4 x 10G copper/SFP+ combo |
Stacking | Hardware stacking / eight members |
Max Power Draw | 124.6W |
Replaces | SG550XG-24T-K9-EU / end of sale June 18, 2020 |
Lifecycle Status | End of sale July 30, 2022 |
Replacement PID | C1300-24XT / intermediate CBS350-24XT-EU discontinued |
An organization replacing SG550XG-24T-K9-EU can identify this regional model as its named replacement. The older model reached end of sale on June 18, 2020, and its support ended June 30, 2025. Match the existing connection inventory and regional ordering requirement before specifying the replacement purchase.
An existing 550X hardware stack can combine SF550X, SG550X, SG550XG, and SX550X members rather than requiring identical interface configurations. Ring and chain arrangements are supported. Inventory the installed members, select the intended topology, and reserve the interconnect ports before specifying the additional chassis and connection materials.
A staging team validating storage-network frame settings can test jumbo frames through 9000 bytes instead of assuming the default MTU already matches production. The default MTU is 2000 bytes. Include the intended frame setting, connected-device requirements, and acceptance checks in the staging instructions before releasing the purchase order.
PoE power for connected endpoints
The copper network ports do not supply PoE. Connected phones, cameras, or wireless access points therefore require a separate power arrangement rather than power from this chassis.
Twenty-four copper links plus fiber uplinks
Four copper connections share their interfaces with the four SFP+ cages. Activating those fiber connections leaves 20 dedicated copper connections, not 24 copper connections plus fiber.
Cisco support beyond July 2027
Cisco support ends July 31, 2027. C1300-24XT is the current successor through discontinued CBS350-24XT-EU; evaluate that model when continued manufacturer support governs procurement.
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| SX550X-24-K9-EU |  SX550X-24F-K9-UK |  SX550X-12F-K9-EU |  SX550X-24F-K9-NA |  SX550X-24-K9-UK | |
|---|---|---|---|---|---|
| Depth | 350 mm | 350 mm | 257 mm | 350 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-24-K9-EU | SX550X-24F-K9-UK | SX550X-12F-K9-EU | SX550X-24F-K9-NA | SX550X-24-K9-UK |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 124.6W | 55.5W | 25.3W | 55.5W | 124.6W |
| Switching Capacity | 480 Gbps | 480 Gbps | 240 Gbps | 480 Gbps | 480 Gbps |
| Weight | 5.16 kg | 4.7 kg | 3.42 kg | 4.7 kg | 5.16 kg |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SX550X-24-K9-EU identifies the regional ordering configuration of the SX550X-24 managed switch: SX550X belongs to the 550X family, 24 identifies the total network-port configuration, and EU selects the regional variant. The configuration provides 24 copper connections, with four sharing their interfaces with SFP+ cages, plus a separate Gigabit management connection.
SX550X-24-K9-EU supports an HTTP/HTTPS web interface, Textview CLI through console or SSH/Telnet, and SNMP versions 1, 2c, and 3. Additional management options include Smart Network Application, FindIT Network Manager and Probe, the embedded FindIT Network Probe, and the FindIT Network Discovery Utility for discovery and device information.
No, SX550X-24-K9-EU does not provide PoE output on its copper network ports. The model supplies Ethernet connectivity rather than endpoint power. A purchase involving powered phones, cameras, or access points must therefore account for their power requirements separately instead of assigning a PoE budget to this switch.
SX550X-24-K9-EU supports 20 dedicated copper connections plus four combo connections, each using either copper or SFP+ fiber at one time. Using all four SFP+ connections therefore permits 20 simultaneous copper connections. The four SFP+ cages are shared interfaces, not four additional connections beyond the 24 network ports.
Yes, SX550X-24-K9-EU supports a hardware stack of eight members using 10G copper or fiber interfaces. The 550X family supports ring and chain arrangements and mixed SF550X, SG550X, SG550XG, and SX550X membership. SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M provide supported direct-attach copper connection options.
SX550X-24-K9-EU supports static IPv4 routing, RIP v2, IPv6 static routing, VRRP versions 2 and 3, and PBR. IPv4 resources accommodate 7168 routes and 256 IP interfaces, while IPv6 static routing supports 1792 routes. Routed interfaces can be configured on physical ports, link aggregations, VLAN interfaces, or loopback interfaces.
The SX550X-24 copper switch uses an internal universal 100-240V AC supply and five fans arranged as four operating fans plus one redundant fan. Maximum published consumption is 124.6W. Power redundancy uses an external RPS connection rather than a second internal supply, so a redundant-power requirement needs a separate external arrangement.
Yes, SX550X-24-K9-EU reached end of sale on July 30, 2022, and its last date of support is July 31, 2027. Software maintenance ended July 30, 2023. Its immediate replacement, CBS350-24XT-EU, is also discontinued; the replacement chain continues to the current C1300-24XT.
SX550X-24-K9-EU replaces SG550XG-24T-K9-EU, the older 24-port 10GBASE-T stackable managed switch. SG550XG-24T-K9-EU reached end of sale on June 18, 2020, and its support ended June 30, 2025. The replacement relationship identifies the migration path, but the replacement itself is also discontinued and has a later successor.
SG550X-24P-K9-EU provides 24 PoE+ access ports with a 195W shared power budget, whereas SX550X-24-K9-EU does not supply endpoint power. Both models are discontinued. The former addresses powered-endpoint requirements in an existing deployment; the latter addresses copper aggregation where connected devices receive power independently.
SX550X-24-K9-EU provides 20 dedicated copper connections, whereas SX550X-24F-K9-EU provides 20 dedicated SFP+ connections; both add four copper/SFP+ combo connections. Both models are discontinued. The copper-focused model suits an installed base of twisted-pair connections, while the fiber-focused model suits an installed base requiring predominantly optical connections.
SX550X-24-K9-EU is discontinued, while C1300-24XT is the current model at the end of its replacement chain through discontinued CBS350-24XT-EU. The original model addresses installed-base matching requirements. C1300-24XT is the successor to evaluate for a new purchase when lifecycle status takes precedence over matching existing hardware.
ORM Systems offers SX550X-24-K9-EU new sealed with up to a 3-year extended warranty or certified refurbished with up to a 1-year warranty. Every condition includes 30-day returns; terms apply. Cisco's separate limited lifetime hardware warranty is bounded by the July 31, 2027 support deadline and applicable entitlement terms.
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