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SX550X-24FT-K9-UK
Cisco SX550X-24FT-K9-UK 550X 12-Port 10 Gigabit Switch, 12x1...
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SX550X-24FT-K9-UK combines 12 dedicated 10G copper ports with 12 dedicated 10G SFP+ interfaces in a managed, non-PoE rack-mount switch. The fixed fiber interfaces remain available independently of the copper connections, rather than sharing combo-port connections. This configuration serves small-business aggregation connecting copper-attached servers and storage with fiber-connected access switches. The Cisco 550X Series supports hardware stacking, while this model's routing capabilities place it in Layer 2+ rather than an enterprise dynamic-routing tier. The discontinued SX550X-24F-K9-UK instead provides 20 dedicated SFP+ interfaces and four copper/SFP+ combo connections. For a 24-port 10G stackable managed switch, the purchasing distinction is the required balance of independent copper and fiber connections, not simply the total port count.
SX550X-24FT-K9-UK price is is available on request. Get immediate quote.
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480 Gbps switching capacity provides the switching fabric for the fixed interfaces, while 240 Mpps forwarding identifies packet-processing capacity at the published 64-byte packet size. Static routing and RIP v2 handle routed connectivity; VRRP provides gateway redundancy, and PBR directs traffic according to matching policies. STP/RSTP/MSTP and LACP provide spanning-tree and link-aggregation controls. SX550X-24FT-K9-UK carries 512 MB of memory and 256 MB of flash for its embedded software and configurations. The address table accommodates 32000 MAC entries, and the IPv4 routing ceiling is 7168 routes. Browser configuration and Textview CLI provide local administration choices, supplemented by SNMP monitoring. 80.2W maximum system consumption supplies a planning figure for electrical allocation without an endpoint PoE load. Three installed fans use a two-plus-one redundant arrangement. Power redundancy uses an external redundant power system rather than a second internal power-supply module.
ORM Systems offers SX550X-24FT-K9-UK in new sealed and certified refurbished condition; specify the condition, included connection parts, and quantity on the PO. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed links on every port, optics bay recognition, PSU and fan status, and clean boot; firmware is verified and configurations are wiped to factory default. New orders include up to 3-year extended warranty, certified refurbished orders include up to 1 year, and every condition carries 30-day returns with terms applying; Cisco's separate limited lifetime warranty ends with Cisco service on July 31, 2027. PO accepted, Net-30 for government, RMA with advance replacement, and regional stock/RMA coverage across the UK, EU, US, and MEA support enterprise and volume purchasing.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 12 x 10G copper / 12 x 10G SFP+ |
Stacking | Hardware stacking / Eight members |
Max Power Draw | 80.2W |
Cooling | 3 fans / N+1 redundancy |
Lifecycle Status | End of sale July 30, 2022 |
Replacement PID | C1300-24XTS via discontinued CBS350-24XTS-UK |
An existing 550X installation needing another member can use hardware stacking with ring or chain connections and master/backup control. Mixed-family stacks have a 400-port system ceiling and support link aggregation across members. Before the PO, specify the stack topology, interconnect media, and ports reserved for stack connections.
A purchase triggered by additional routed segments needs interface planning alongside port planning. The 550X family supports 256 IPv4 interfaces, while IPv6 static routing has a separate ceiling of 1792 routes and 256 interfaces. Before ordering, check the required interface inventory and IPv6 route count against those limits.
A lab or staging purchase requiring traffic inspection can mirror eight source ports to one destination port, with additional VLAN and remote mirroring options. Dual software images support firmware staging. Specify the analyzer connection, mirrored source ports, and image-management procedure before placing the equipment order.
PoE power for attached endpoints
SX550X-24FT-K9-UK does not supply PoE to connected devices. Phones, access points, or cameras requiring Ethernet-delivered power need a separate power arrangement.
25G or faster uplink connections
The fixed SFP+ connections reach 10G, not 25G or faster. SX550X-24FT-K9-UK has no removable uplink card for increasing that interface speed.
Cisco support beyond July 2027
Cisco support ends July 31, 2027. C1300-24XTS is the current successor through discontinued CBS350-24XTS-UK, retaining twelve 10G copper ports and twelve SFP+ interfaces.
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| SX550X-24FT-K9-UK |  SX550X-16FT-K9-EU |  SX550X-52-K9-UK |  SX550X-24FT-K9-EU |  SX550X-52-K9-NA | |
|---|---|---|---|---|---|
| Depth | 350 mm | 257 mm | 450 mm | 350 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-24FT-K9-UK | SX550X-16FT-K9-EU | SX550X-52-K9-UK | SX550X-24FT-K9-EU | SX550X-52-K9-NA |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 80.2W | 57.7W | 234.5W | 80.2W | 234.5W |
| Switching Capacity | 480 Gbps | 320 Gbps | 1040 Gbps | 480 Gbps | 1040 Gbps |
| Weight | 4.84 kg | 3.79 kg | 7.36 kg | 4.84 kg. | 7.36 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SX550X-24FT-K9-UK identifies a regional 24-port 10G managed switch with mixed copper and fiber connections. SX550X identifies the 10G model range, 24 represents the network-port total, and FT distinguishes the twelve-copper/twelve-fiber configuration. UK selects the regional ordering variant used in the United Kingdom and several additional markets.
The Cisco 550X Series supports an HTTP/HTTPS web interface, Textview CLI through console, SSH or Telnet, SNMP, Smart Network Application, Cisco FindIT Network Manager, and Active Advisor. An embedded FindIT Network Probe is also supported. Specify the intended management access and monitoring integration when preparing the configuration.
Yes, SX550X-24FT-K9-UK reached end of sale on July 30, 2022, and Cisco support ends July 31, 2027. Software maintenance ended July 30, 2023. The original replacement, CBS350-24XTS-UK, is also discontinued; the forward replacement chain now ends at C1300-24XTS for a current migration purchase.
New sealed and certified refurbished SX550X-24FT-K9-UK units are offered by ORM Systems. New orders include up to 3-year extended warranty; certified refurbished orders include up to 1 year. Returns cover 30 days on every condition; terms apply. Cisco's limited lifetime warranty is bounded by the last support date, July 31, 2027.
No, SX550X-24FT-K9-UK is a non-PoE switch and does not deliver endpoint power through its copper ports. The twelve copper connections provide Ethernet connectivity only. A purchase involving phones, wireless access points, or cameras must specify an independent power arrangement rather than assigning those devices a switch PoE budget.
SX550X-24FT-K9-UK supports hardware stacks of eight members using 10G copper or fiber interconnections. Ring and chain arrangements are supported, and link aggregation can carry stack interconnect traffic. The 550X family permits mixed SF550X, SG550X, SG550XG, and SX550X members; reserve the required interfaces when specifying the stack.
The Cisco 550X Series provides static routing, RIP v2, VRRP, and PBR, with a platform ceiling of 7168 IPv4 routes. IPv6 static routing has a separate 1792-route ceiling. These capabilities support Layer 2+ operation; size the route inventory and routed interfaces before selecting the switch for a routing role.
The 24-port mixed-media 550X switch supports SFP-10G-SR and SFP-10G-LR optics, plus SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M direct-attach cables. SFP-10G-SR uses multimode fiber, while SFP-10G-LR uses single-mode fiber. Select the optical medium, link distance, or cable length before adding the connection parts to the purchase order.
No, the Cisco 550X mixed-media switch uses an internal AC supply with external redundant-power support, not two internal redundant modules. The AC input accepts 100-240V, and maximum system consumption is 80.2W. Specify external redundancy equipment separately rather than assuming a second internal supply is included with the switch.
Yes, the 24-port mixed-media 550X switch is a rack-mount 1U unit measuring 440 mm wide, 44 mm high, and 350 mm deep. Its weight is 4.84 kg, and a mounting kit is included in the original package. Check rack depth, cable clearance, and the order's included mounting hardware.
SX550X-24FT-K9-UK has twelve dedicated copper and twelve dedicated SFP+ connections; SX550X-24F-K9-UK has twenty dedicated SFP+ connections and four copper/SFP+ combo connections. Both are discontinued. For legacy equipment matching, the FT configuration suits an even copper/fiber split, while the F configuration suits predominantly fiber-connected installations.
SX550X-24FT-K9-UK provides twelve copper and twelve SFP+ connections, while SX550X-16FT-K9-UK provides eight of each. Both models are discontinued and preserve an equal copper/fiber split. For matching legacy installations, the 24-port model suits the larger connection inventory, while the 16-port model suits the smaller inventory.
SX550X-24FT-K9-UK ended sale on July 30, 2022, whereas C1300-24XTS is the current endpoint of its replacement chain through discontinued CBS350-24XTS-UK. Both configurations provide twelve 10G copper connections and twelve SFP+ interfaces. The older model suits legacy hardware matching; C1300-24XTS suits a current-model migration purchase.
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