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SX550X-24F-K9-UK
Cisco SX550X-24F-K9-UK 550X 24-Port 10 Gigabit Ethernet SFP+...
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SX550X-24F-K9-UK provides fiber-oriented, managed switching for small-business aggregation, with 24 SFP+ connections supporting 10 Gigabit Ethernet. Four connections also offer shared 10GBASE-T copper interfaces, giving the fixed uplink architecture a choice of media rather than additional independent ports. The non-PoE, Layer 2+ configuration combines Ethernet switching with static routing and RIP v2 in a rack-mount 1U chassis. Cisco 550X Series Stackable Managed Switches serve business networks connecting access switches, servers, and network storage. The discontinued SX550X-12F-K9-UK sibling reduces the optical connection count to 12 for lower-density existing installations. This 24-port fiber switch accommodates optical aggregation and selected copper connections without a removable uplink module, while a dedicated Gigabit management connection separates administration from production traffic.
SX550X-24F-K9-UK price for new stock is is available on request. Get immediate quote. SX550X-24F-K9-UK refurb price is $3,547.64.
Request bulk order quote for SX550X-24F-K9-UK for additional pricing. Browse the full Cisco SX550X Switches series or explore all Cisco products.
480 Gbps switching capacity supports traffic across the fixed interfaces, while 240 Mpps forwarding performance describes processing with 64-byte packets. 55.5W worst-case system consumption provides the electrical sizing figure without an endpoint-power allocation. Static routing, RIP v2, PBR, and VRRP v2/v3 support inter-subnet forwarding and gateway redundancy. SX550X-24F-K9-UK combines 512 MB of memory with 256 MB of flash for its managed software and configuration. A dynamically shared 3 MB packet buffer handles queued traffic across the ports, while the MAC table accommodates 32000 addresses. IPv4 routing supports 7168 routes and 256 IP interfaces; IPv6 static routing supports 1792 routes. VLAN segmentation extends to 4094 active VLANs. STP, RSTP, and MSTP provide loop-control options, and management includes a browser interface, Textview CLI, and SNMP. Power redundancy uses an external connection rather than a second internal supply, and three fans plus one redundant fan provide cooling.
ORM Systems supplies SX550X-24F-K9-UK new sealed or certified refurbished; new units carry up to 3-year extended coverage, certified refurbished units up to 1 year, and every condition has 30-day returns, with terms applying. Refurbished units are inspected and bench-tested for optics bay recognition and clean boot, with firmware verified and configuration wiped to factory default. Specify condition, quantity, and accessory requirements on the purchase order. PO accepted, Net-30 for government, and RMA with advance replacement support enterprise and volume orders, with regional stock and RMA across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 20 x 10G SFP+ / 4 x 10G combo |
Stacking | Hardware stacking / eight members |
Max Power Draw | 55.5W |
Cooling | 3 fans / 1 redundant fan |
Lifecycle Status | End of sale July 30, 2022 |
Replacement PID | C1300-24XS (current successor) |
When server or storage connections require grouped links, the switch supports 32 link aggregation groups, with eight active ports per group and 16 candidate ports for dynamic aggregation. LACP provides the grouping mechanism. Specify the intended member interfaces and verify the attached equipment's aggregation configuration before placing the purchase order.
When several branches need a common configuration staged before shipment, the switch accepts text-editable configuration files and secure SCP transfers. Cisco Network Plug and Play supports provisioning, while dual firmware images support upgrade preparation. Specify the configuration baseline and staging requirements before the purchase order is released.
When a lab or troubleshooting purchase needs traffic capture rather than additional production capacity, port mirroring accepts eight source ports into one destination port. RSPAN extends mirroring across a Layer 2 domain, and sFlow exports sampled traffic. Identify capture interfaces and collector requirements before ordering the equipment.
PoE power for connected endpoints
SX550X-24F-K9-UK does not supply PoE on its copper ports. Powered phones, cameras, and access points cannot receive operating power from this switch.
Independent copper and fiber uplinks
Four copper interfaces share four SFP+ connections, allowing only one medium per pair. Activating copper occupies the paired fiber connection; these are not eight independent uplinks.
Cisco service beyond July 2027
Cisco service for SX550X-24F-K9-UK ends July 31, 2027. C1300-24XS is the current successor beyond discontinued CBS350-24XS-UK; assess the successor separately for a new deployment.
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| SX550X-24F-K9-UK |  SX550X-24FT-K9-EU |  SX550X-24FT-K9-UK |  SX550X-52-K9-UK |  SX550X-52-K9-NA | |
|---|---|---|---|---|---|
| Depth | 350 mm | 350 mm | 350 mm | 450 mm | 450 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-24F-K9-UK | SX550X-24FT-K9-EU | SX550X-24FT-K9-UK | SX550X-52-K9-UK | SX550X-52-K9-NA |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 55.5W | 80.2W | 80.2W | 234.5W | 234.5W |
| Switching Capacity | 480 Gbps | 480 Gbps | 480 Gbps | 1040 Gbps | 1040 Gbps |
| Weight | 4.7 kg | 4.84 kg. | 4.84 kg | 7.36 kg | 7.36 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SX550X-24F-K9-UK identifies a 24-port 10 Gigabit SFP+ stackable managed switch. SX550X identifies the 10 Gigabit 550X model group; 24 denotes the connection count and F the fiber configuration. UK is the regional ordering suffix for the United Kingdom, Saudi Arabia, Qatar, Kuwait, Singapore, Hong Kong, and Malaysia.
SX550X-24F-K9-UK supports browser management over HTTP/HTTPS, Textview CLI through console, SSH or Telnet, and SNMP. Network-level options include Smart Network Application, FindIT Network Manager with the embedded FindIT Network Probe, FindIT Network Discovery Utility, and Active Advisor. Cisco Network Plug and Play supports provisioning.
Yes, SX550X-24F-K9-UK reached end of sale on July 30, 2022, and its last date of support is July 31, 2027. Software maintenance ended July 30, 2023. The original replacement, CBS350-24XS-UK, is also discontinued; the forward migration chain now ends at C1300-24XS.
ORM Systems offers SX550X-24F-K9-UK new sealed or certified refurbished, with up to 3-year extended coverage for new units and up to 1 year for certified refurbished units. Every condition has 30-day returns; terms apply. Cisco's separate limited lifetime hardware warranty is bounded by the July 31, 2027 last date of support.
SX550X-24F-K9-UK replaces the discontinued SG550XG-24F-K9-UK. Both configurations provide 24 SFP+ connections, but the newer model has four shared copper interfaces rather than two. For an existing installation, map the occupied optical and copper connections before substitution because the shared-port arrangement differs between these models.
SX550X-24F-K9-UK provides 24 independent data connections: 20 dedicated SFP+ connections and four copper/SFP+ combo connections. Each combo pair permits one active medium, not simultaneous copper and fiber operation. A separate Gigabit out-of-band management connection supports administration and does not add another production data connection.
Yes, the 550X fiber switch supports hardware stacking with eight members using standard 10G copper or fiber interfaces. Ring and chain arrangements are supported, and link aggregation can form stacking interconnects. Supported direct-attach choices include SFP-H10GB-CU1M and SFP-H10GB-CU3M; reserve the selected interfaces when planning the stack.
SX550X-24F-K9-UK supports static routing, RIP v2, PBR, and VRRP versions 2 and 3. IPv4 routing accommodates 7168 routes and 256 IP interfaces, while IPv6 static routing accommodates 1792 routes. These functions support inter-subnet forwarding and redundant gateways alongside the switch's Ethernet switching capabilities.
SX550X-24F-K9-UK requires 100-240V AC at 47-63 Hz through its internal universal power supply. Worst-case system consumption is 54.9W at 110V and 55.5W at 220V. An external redundant-power connection provides a backup-power path; the chassis does not ship with two internal redundant supply modules.
Yes, the 550X 24-port fiber switch uses a 1U chassis measuring 440 mm wide, 44 mm high, and 350 mm deep. SX550X-24F-K9-UK weighs 4.7 kg and includes three fans plus one redundant fan. Check rack depth and maintain operation within the 0°C to 50°C temperature range.
SG550X-24P-K9-UK supplies a 195W PoE budget across 24 Gigabit access ports, whereas SX550X-24F-K9-UK provides non-PoE 10G SFP+ connectivity. Both models are discontinued. The powered Gigabit configuration matches existing endpoint-access installations; the fiber-oriented configuration matches existing networks requiring optical aggregation rather than endpoint power.
SX550X-24F-K9-UK provides 24 SFP+ connections, while SX550X-12F-K9-UK provides 12, making connection density the principal difference. Both are discontinued 10 Gigabit managed models. The smaller configuration matches lower-density existing fiber installations; the 24-connection configuration accommodates a larger optical connection requirement within the same switch family.
C1300-24XS is the current migration endpoint, while SX550X-24F-K9-UK is discontinued and reaches its last date of support on July 31, 2027. The chain passes through the also-discontinued CBS350-24XS-UK. The older model addresses exact-match existing installations; C1300-24XS is the successor to assess for a new purchase.
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