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SG350-52-K9-UK
Cisco SG350-52-K9-UK 350 48-Port Gigabit Switch, 2x1G SFP Up...
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SG350-52-K9-UK is a managed, non-PoE Gigabit switch with 48 copper access ports, two dedicated SFP uplinks and two copper/SFP combo uplinks. The fixed uplink architecture operates at 1G; each combo connection uses either its copper interface or its SFP interface. This Rack-Mount 1U model belongs to the Cisco 350 Series and provides Layer 2+ switching with static routing for small-business networks. Desktops, printers and separately powered endpoints can connect without reserving an endpoint power budget. The discontinued SG350-52P-K9-UK differs by adding powered access ports. The 52-port Gigabit managed switch provides copper and fiber connection choices without a removable uplink card, so uplink speed cannot be increased by installing a network module.
SG350-52-K9-UK price is is available on request. Get immediate quote.
Request bulk order quote for SG350-52-K9-UK for additional pricing. Browse the full Cisco 350 Series Managed Switches series or explore all Cisco products.
104 Gbps switching capacity provides nonblocking forwarding across the available interfaces. 77.38 Mpps forwarding at 64-byte packet size identifies the packet-processing limit separately from bandwidth. Static routing and PBR support local traffic handling without a dynamic routing protocol feature set. SG350-52-K9-UK carries 512 MB of memory and 256 MB of flash for its embedded management software and stored configuration. A shared 3 MB packet buffer accommodates traffic across the ports rather than assigning that capacity to each interface. STP, RSTP and MSTP provide spanning-tree choices, while LACP supports aggregated connections. The address table accommodates 16000 entries for connected devices. A single fan cools the chassis, and the operating range is 0°C to 50°C. Internal universal AC power accepts 100-240V; worst-case consumption at 110V is 40.4W, which informs power allocation at that input voltage.
Specify SG350-52-K9-UK as new sealed or certified refurbished, and confirm the required condition and included accessories on the purchase order. Certified refurbished units are inspected and bench-tested for power-on, POST, rated-speed port links, optics bay recognition, PSU status and clean boot; firmware is verified and configuration wiped to factory default. New units carry up to a 3-year extended warranty, certified refurbished units carry up to a 1-year warranty, and every condition has 30-day returns; terms apply. ORM accepts POs, offers Net-30 for government and RMA with advance replacement, and supports enterprise and volume orders through regional stock and RMA coverage in the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48x1G access / 2x1G combo / 2x1G SFP |
Cooling | 1 fan |
Lifecycle Status | End of sale October 30, 2021 |
Replacement PID | C1300-48T-4G / CBS350-48T-4G-UK discontinued |
An office adding routed separation between departments can configure IP interfaces locally instead of sending every internal exchange through an external router. The switch supports 128 IP interfaces across physical ports, aggregated links, VLAN interfaces and loopback interfaces. Specify interface assignments and the external gateway arrangement before the purchase order.
A consolidation project retaining separate employee, guest and application networks can use simultaneous support for 4094 VLANs. Private VLAN functions provide additional isolation between attached devices. The procurement specification should identify required segmentation, trunk connections and access-control behavior rather than treating all connected endpoints as one unrestricted network.
A branch rollout requiring repeatable configuration can use the front-panel USB Type-A connection for image and configuration transfer before shipment. Dual software images support firmware staging. Specify the required configuration handoff and acceptance checks before the purchase order, including whether each unit will arrive ready for local commissioning.
PoE power for connected endpoints
SG350-52-K9-UK does not supply endpoint power. C1300-48P-4G is a current 48-port Gigabit PoE alternative with four dedicated 1G SFP uplinks.
10G uplinks to distribution
SG350-52-K9-UK uplinks operate at 1G. C1300-48T-4X retains 48 Gigabit access ports while providing four 10G SFP+ uplinks for the distribution connection.
Cisco service beyond October 2026
SG350-52-K9-UK reaches its last date of Cisco support on October 31, 2026. C1300-48T-4G is the current successor reached through its replacement chain.
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| SG350-52-K9-UK |  SG350-10MP-K9-EU |  SG350-28SFP |  SG350-52P-K9-UK |  SG350-28SFP-K9-NA | |
|---|---|---|---|---|---|
| Depth | 257 mm | 170 mm | 203 mm | 350 mm | 203 mm |
| Ethernet Technology | Gigabit Ethernet | 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 | Desktop | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | SG350-52-K9-UK | SG350-10MP-K9-EU | SG350-28SFP | SG350-52P-K9-UK | SG350-28SFP-K9-NA |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 40.4W at 110V AC | 152.8W | 34.3W | 440W | 34.3W |
| SFP Ports | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 26 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 24 x 1GbE access / 2 x 1GbE uplink / 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 104 Gbps | 20 Gbps | 56 Gbps | 104 Gbps | 56 Gbps |
| Weight | 2.75 kg | 1.19 kg. | 2.7 kg | 3.81 kg | 2.7 kg |
| Width | 440 mm | 280 mm | 440 mm | 440 mm | 440 mm |
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SG350-52-K9-UK identifies the regional ordering version of a Cisco 350 Series 52-port Gigabit managed switch. The 52 connections comprise 48 access ports and four uplink connections. UK covers the United Kingdom and several additional markets; the complete ordering identifier retains K9 without selecting a separate software tier.
SG350-52-K9-UK supports HTTP/HTTPS browser management, Textview CLI through console, SSH or Telnet, and SNMP management. Network-level options include Smart Network Application, FindIT Network Manager with its embedded Probe, and Cisco Active Advisor. The browser interface provides simple and advanced modes, while the CLI supports scripting and privilege-controlled administration.
SG350-52-K9-UK ended Cisco sales on October 30, 2021, and reaches its last date of support on October 31, 2026. Software maintenance ended October 30, 2022. Its direct replacement, CBS350-48T-4G-UK, is also discontinued; the forward replacement chain reaches the current C1300-48T-4G for new hardware standardization.
ORM offers SG350-52-K9-UK new sealed with up to a 3-year extended warranty, or certified refurbished with up to a 1-year warranty. Every condition has 30-day returns; terms apply. Cisco's separate limited lifetime hardware warranty is bounded by the last date of support, October 31, 2026. Specify the required condition when ordering.
SG350-52-K9-UK replaces SRW2048-K9-UK, the older SG300-52 52-port Gigabit managed switch. That replacement relationship identifies the migration model, not configuration interchangeability. When replacing an installed unit, specify the regional ordering version and verify the existing copper, fiber and management requirements before committing the purchase order.
No, SG350-52-K9-UK does not provide PoE on its access ports. Connected phones, access points and other powered endpoints therefore need a separate power arrangement. The chassis receives AC power through its internal supply; that input powers the switch itself and does not create an endpoint power budget.
The Cisco 350 Series supports MGBSX1 for multimode fiber, MGBLX1 and MGBLH1 for single-mode fiber, plus GLC-LH-SMD and GLC-BX-U. MGBT1 provides a copper SFP option. For SG350-52-K9-UK, specify compatible 1G transceivers according to media, reach and the equipment at the other end of each connection.
SG350-52-K9-UK supports 990 static IPv4 routes and 128 IP interfaces, with PBR available for policy-directed forwarding. Static routing places the switch in the Layer 2+ category rather than a dynamic-routing category. Specify the required route entries and interface assignments before selecting the switch for inter-VLAN routing responsibilities.
SG350-52-K9-UK has two dedicated 1G SFP uplinks and two 1G copper/SFP combo uplinks. Each combo connection activates either copper or fiber, not both simultaneously. All four uplink connections are fixed, so the purchase specification should identify the required media without assuming a removable card can increase uplink speed.
SG350-52P-K9-UK adds powered access ports and a 375W shared PoE budget, whereas SG350-52-K9-UK supplies no endpoint power. Both models are discontinued. The non-PoE version suits replacement installations with separately powered devices; the powered sibling suits existing installations whose endpoint power requirements fit its shared budget.
SG350-52-K9-UK provides 48 copper access ports, while SG350-28-K9-UK provides 24. Both models are discontinued. For an existing installation, the larger model suits a higher endpoint count, while the smaller model suits a lower port requirement; specify the actual copper access requirement before choosing replacement stock.
C1300-48T-4G provides four dedicated 1G SFP uplinks, while SG350-52-K9-UK provides two dedicated SFP uplinks and two copper/SFP combo uplinks. The discontinued older model suits like-for-like replacement where combo connectivity matters; the current successor suits buyers specifying four independent fiber uplink connections in a new hardware standard.
United States
