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SG550XG-48T-K9-UK
Cisco SG550XG-48T-K9-UK 550X 46-Port 10 Gigabit Ethernet Swi...
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SG550XG-48T-K9-UK provides managed, non-PoE 10 Gigabit Ethernet connectivity through 46 dedicated copper ports and two additional copper/SFP+ combo connections. The fixed interfaces support Layer 2 switching plus static and RIP v2 routing, placing this 1U switch in small-business networks that need local traffic segmentation without endpoint power delivery. The Cisco 550X Series combines copper connectivity with a choice of optical connections, but each optical connection shares its interface with a copper port rather than adding another independent connection. A dedicated Gigabit out-of-band management port separates administrative access from normal network traffic. The discontinued SG550XG-24T-K9-UK offers the lower-density copper configuration in the same family. This 48-port 10GBASE-T stackable managed switch therefore requires a port plan that distinguishes dedicated connections from shared media choices.
SG550XG-48T-K9-UK price for new stock is is available on request. Get immediate quote. SG550XG-48T-K9-UK refurb price is $4,110.86.
Request bulk order quote for SG550XG-48T-K9-UK for additional pricing. Browse the full Cisco 550X Series Stackable Managed Switches series or explore all Cisco products.
960 Gbps switching capacity supports the switch's wire-speed, nonblocking forwarding architecture. 714.24 Mpps forwarding at a 64-byte packet size provides the corresponding packet-processing ceiling for traffic sizing. Static routing and RIP v2 handle routed connections, while PBR directs selected traffic to specified next hops and VRRP versions 2 and 3 support gateway redundancy. The IPv4 routing ceiling is 7168 routes, distinct from interface limits. SG550XG-48T-K9-UK uses 512 MB of memory and 256 MB of flash, with a 4 MB packet buffer dynamically shared across ports. STP, RSTP, MSTP, and LACP provide loop-control and link-aggregation options. Five cooling fans operate in an N+1 arrangement, retaining a spare fan within the cooling configuration. A maximum draw of 264.4W provides the equipment-level figure for electrical planning. Power redundancy is external rather than a second internal power-supply bay, so internal dual-supply requirements cannot be met by adding another PSU module.
ORM Systems offers SG550XG-48T-K9-UK New sealed with up to a 3-year extended warranty or Certified refurbished with up to a 1-year warranty; returns cover 30 days on every condition, terms apply. Refurbished units are inspected and bench-tested for power-on, POST, rated-speed links on every port, optics bay recognition, and clean boot; firmware is verified and configurations are wiped to factory default. Specify the condition and required optics on the PO; Cisco's original limited lifetime hardware warranty ended June 30, 2025. POs are accepted, Net-30 is available for government, and RMA includes advance replacement, with regional stock/RMA coverage across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 46 x 10G copper / 2 x 10G copper/SFP+ combo |
Stacking | Hardware stacking / 8 members |
Max Power Draw | 264.4W |
Cooling | 5 fans / N+1 redundancy |
Lifecycle Status | Cisco support ended June 30, 2025 |
Replacement PID | No current successor; SX550X-52-K9-UK is discontinued. |
When a small-business network needs routed separation between local groups, the switch supports 256 IPv4 interfaces across physical ports, link aggregation groups, VLAN interfaces, and loopback interfaces. Inventory the required interfaces and gateway assignments before purchase, then include the intended routing configuration in the staging requirements.
When several attached systems require aggregated connections, the switch supports 32 link aggregation groups with eight active ports per group and 16 candidate ports for dynamic groups. Build the connection schedule around the required group membership, then specify matching aggregation settings on the attached equipment before the PO.
When replacement units must be configured before dispatch, the USB interface can save and restore configuration files, firmware images, and system logs. A serial console also supports local setup without relying on network access. Specify the approved configuration, firmware verification requirements, and required console connection before ordering.
Endpoint power through Ethernet
SG550XG-48T-K9-UK provides data-only Ethernet connections and supplies no PoE output. Attached phones, access points, or cameras cannot obtain operating power from these ports.
Two internal redundant power supplies
SG550XG-48T-K9-UK has an internal universal AC supply, with power redundancy provided externally. A second internal power module cannot be added to create dual internal supplies.
Active Cisco hardware support
Cisco service for SG550XG-48T-K9-UK ended June 30, 2025. The replacement chain ends at a discontinued model with no current migration product named.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| SG550XG-48T-K9-UK |  SG550XG-24T |  SG550X-24MP-K9-UK |  SG550X-24MPP-K9-EU |  SG550X-24P-K9-NA | |
|---|---|---|---|---|---|
| Depth | 450 mm | 450 mm | 350 mm | 450 mm | 350 mm |
| Ethernet Technology | 10 Gigabit Ethernet | 10 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 | SG550XG-48T-K9-UK | SG550XG-24T | SG550X-24MP-K9-UK | SG550X-24MPP-K9-EU | SG550X-24P-K9-NA |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 264.4W | 143.9W | 471.2W | 870.1W | 269.2W |
| Switching Capacity | 960 Gbps | 480 Gbps | 128 Gbps | 128 Gbps | 128 Gbps |
| Weight | 7.43 kg. | 6.38 kg | 5.33 kg | 6.19 kg | 4.72 kg |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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SG550XG-48T-K9-UK identifies a 550X managed 10GBASE-T switch with 48 copper-capable connections. SG550XG identifies the 10 Gigabit stackable model range, 48T identifies the copper-port configuration, and UK is the regional suffix covering the United Kingdom, Saudi Arabia, Qatar, Kuwait, Singapore, Hong Kong, and Malaysia.
SG550XG-48T-K9-UK supports an HTTP/HTTPS web interface, console CLI, remote CLI through SSH or Telnet, and SNMP versions 1, 2c, and 3. Management options also include Smart Network Application, FindIT Network Manager with an embedded FindIT Network Probe, and Active Advisor. A dedicated out-of-band Ethernet port provides separate management access.
Yes, SG550XG-48T-K9-UK reached end of sale on June 18, 2020, and its last date of Cisco support was June 30, 2025. Software maintenance ended June 18, 2021. Cisco service has ended, so remaining hardware purchases require a support arrangement independent of Cisco's former entitlement.
ORM Systems offers SG550XG-48T-K9-UK New sealed with up to a 3-year extended warranty or Certified refurbished with up to a 1-year warranty. Returns are available for 30 days on every condition; terms apply. Cisco's original limited lifetime hardware warranty ended with support on June 30, 2025.
SG550XG-48T-K9-UK provides two fixed 10G SFP+ connections, each shared with a copper Ethernet connection rather than additional to it. Activating an SFP+ connection disables its paired copper connection. SFP-10G-SR supports multimode fiber, while SFP-10G-LR supports single-mode fiber; specify the required transceivers separately.
Yes, 550X hardware stacking supports eight members managed as one system. Standard network interfaces become stacking interfaces when configured for that role, and connected stack interfaces must have matching speeds. SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M provide supported direct-attach copper connection options for the stack plan.
SG550XG-48T-K9-UK supports static routing, RIP v2, PBR, and VRRP versions 2 and 3, with a ceiling of 7168 IPv4 routes. Static IPv6 routing supports 1792 routes. These capabilities provide local routed connectivity and gateway redundancy without treating the switch as a higher-tier dynamic-routing configuration.
No, SG550XG-48T-K9-UK uses an internal universal AC supply rather than dual internal PSU bays. Input power is 100-240V AC at 47-63 Hz. Backup power connects through the external RPS2300 system, so a purchase requiring two internal power modules cannot be satisfied by adding another internal supply.
SG550XG-48T-K9-UK was replaced by SX550X-52-K9-UK, which is also discontinued. That model's replacement was CBS350-48XT-4X-UK, another discontinued model with no current migration product named. The chain therefore does not identify a current successor to order as a direct replacement for this switch.
SG550XG-48T-K9-UK has 48 copper-capable connections, while SG550XG-24T-K9-UK has 24; both include two copper/SFP+ combo connections within those totals. Both models are discontinued. The 48-port model suits maintenance requirements retaining greater copper density, while the 24-port model corresponds to lower-density installed configurations.
SG550XG-48T-K9-UK is copper-focused with 46 dedicated copper ports, whereas SG550XG-24F-K9-UK is fiber-focused with 22 dedicated SFP+ connections; each also has two combo connections. Both are discontinued. The former corresponds to copper-heavy installed networks, while the latter corresponds to fiber-heavy networks with fewer total connections.
SG550XG-48T-K9-UK supplies no endpoint power, while SG550X-48P-K9-UK provides PoE+ on its access ports. Both models are discontinued. The former suits maintaining data-only connections to independently powered equipment; the latter corresponds to installed networks that depend on the switch to supply power to attached endpoints.
United States
