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SG250X-48P-K9-EU
Cisco SG250X-48P-K9-EU 250 48-Port Gigabit PoE+ Switch, 2x10...
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SG250X-48P-K9-EU combines 48 Gigabit Ethernet PoE+ access ports with fixed 10G uplinks split between two 10GBASE-T ports and two SFP+ cages. This Layer 2+ smart switch belongs to the Cisco 250 Series Smart Switches and uses a 1U rack-mount chassis for small-business access networks. Computers, IP phones, wireless access points, and surveillance cameras can connect at the access edge, with powered endpoints receiving electricity through their Ethernet connections. The discontinued SG250X-48-K9-EU is the closest non-PoE sibling and omits endpoint power delivery. The 48-port Gigabit PoE+ smart switch provides copper and fiber uplink connections without a removable uplink card, so its uplink architecture remains fixed when matching an existing installation.
SG250X-48P-K9-EU price is is available on request. Get immediate quote.
Request bulk order quote for SG250X-48P-K9-EU for additional pricing. Browse the full Cisco SG250X Switches series or explore all Cisco products.
176 Gbps switching capacity and 130.94 Mpps forwarding at 64-byte packets define the forwarding envelope for concurrent access and uplink traffic. 382W of shared PoE allocation requires endpoint power planning rather than a full-power assumption for every connection. Static IPv4 routing supports 32 routes for local subnet forwarding. SG250X-48P-K9-EU carries 512 MB DRAM and 256 MB flash for its embedded software, while a 24 Mb packet buffer is shared dynamically across all ports. STP/RSTP/MSTP handle loop control, and LACP supports grouped links; eight hardware queues allow differentiated treatment of voice, video, and other traffic. The built-in web interface and Textview CLI provide configuration access, with SNMP available for monitoring integration. Four fans provide active cooling, so this is not a fanless switch. Operating temperatures from 0°C to 50°C define the ambient limit to check when selecting its equipment-room location.
Specify SG250X-48P-K9-EU in new sealed or certified refurbished condition; refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, PoE output under load on every powered port, optics bay recognition, PSU and fan status, and clean boot, with firmware verified and configuration wiped to factory default. ORM warranties cover new units with up to a 3-year extended term and certified refurbished units for up to 1 year; returns are 30 days for every condition, terms apply, and Cisco's limited lifetime hardware coverage ends October 31, 2026. Submit the condition and quantity on the PO. For enterprise and volume orders, PO acceptance, Net-30 for government, and RMA with advance replacement accompany regional stock and RMA coverage in the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48x1G PoE+ / 2x10GBASE-T / 2x10G SFP+. |
PoE Budget | 382W shared. |
Max Power Draw | 502.3W including PoE. |
Cooling | 4 fans. |
Lifecycle Status | End of sale October 30, 2021. |
Replacement PID | C1200-48P-4X. |
When replacing a branch switch that also handles local subnet gateways, the 16-IP-interface ceiling is the constraint to check before consolidating networks. Inter-VLAN communication can remain local, but the addressing plan must fit that interface count. Specify the required gateway interfaces and confirm the subnet plan before the PO.
For repeat branch purchases, text-editable configuration files and SCP autoconfiguration provide a common staging workflow across sites. The embedded Cisco Network Plug and Play agent also supports Cisco PnP Connect for provisioning. Specify the configuration baseline, provisioning workflow, and site-specific settings before placing a multisite hardware PO.
When a replacement must be validated against existing application traffic before cutover, port mirroring accepts four source ports to one destination, while VLAN mirroring accepts four source VLANs. These limits determine the traffic-observation plan. Specify the mirror sources and analyzer connection before ordering hardware for the staging environment.
Four optical 10G uplinks
Only two 10G SFP+ cages are built in; the other two 10G uplinks use copper. C1200-48P-4X provides four 10G SFP+ uplinks with 48 Gigabit access ports.
30W across every powered port
The 382W shared PoE budget cannot supply 48 × 30W = 1440W simultaneously. Combined endpoint demand must fit the shared allocation rather than every port's individual maximum.
Dynamic routing at branch gateways
IPv4 routing is limited to static routes, with 32 routes and 16 IP interfaces. Networks requiring a dynamic routing protocol need a different routing device.
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| SG250X-48P-K9-EU |  SG250X-24-K9-UK |  SG250X-48P-K9-NA |  SG250X-24P-K9 |  SG250X-48P-K9-UK | |
|---|---|---|---|---|---|
| Depth | 350 mm | 257 mm | 350 mm | 257 mm | 350 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 | 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 | SG250X-48P-K9-EU | SG250X-24-K9-UK | SG250X-48P-K9-NA | SG250X-24P-K9 | SG250X-48P-K9-UK |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 502.3W | 29.1W | 502.3W | 260.1W | 502.3W |
| Switching Capacity | 176 Gbps | 128 Gbps | 176 Gbps | 128 Gbps | 176 Gbps |
| Weight | 4.84 kg. | 2.66 kg. | 4.84 kg | 3.86 kg | 4.84 kg |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SG250X-48P-K9-EU identifies a 48-port Gigabit PoE+ smart switch with 10G uplinks. SG250X names the model group, 48 denotes the access-port count, P identifies PoE+, and EU selects the regional ordering variant. Retain K9 when specifying the complete part number for an existing-installation match.
SG250X-48P-K9-EU supports HTTP/HTTPS web management, full or menu-based Textview CLI through SSH or Telnet, and SNMP. Legacy network-level integrations include Smart Network Application, FindIT Network Manager and Probe, FindIT Network Discovery Utility, and Cisco Active Advisor. The embedded FindIT Network Probe avoids a separate probe appliance.
SG250X-48P-K9-EU is discontinued: end of sale was October 30, 2021, and Cisco service ends October 31, 2026. Software maintenance ended October 30, 2022. Its direct replacement, CBS250-48P-4X-EU, is also discontinued; the migration chain continues to C1200-48P-4X for new-design purchases.
ORM Systems offers SG250X-48P-K9-EU new sealed or certified refurbished, with new-unit extended warranty up to 3 years or refurbished warranty up to 1 year. Returns are 30 days for every condition; terms apply. Cisco's limited lifetime hardware warranty ends October 31, 2026; fans and power supplies have a 1-year Cisco warranty.
SG250X-48P-K9-EU provides 382W shared across 48 PoE+ ports, with a 30W maximum per powered access port. Simultaneous full-power demand would be 48 × 30W = 1440W, above the available budget. Size endpoint allocations by combined demand rather than assuming every port can supply its individual maximum together.
SG250X-48P-K9-EU has two 10GBASE-T uplinks and two 10G SFP+ uplinks. Compatible choices include SFP-10G-SR for multimode fiber, SFP-10G-LR for single-mode fiber, and SFP-H10GB-CU1M for a 1 m copper direct-attach connection. Specify the uplink medium and matching far-end interface when assembling the hardware order.
No, the Cisco 250 Series Smart Switches do not form a hardware stack; Smart Network Application provides network-level management instead. Each chassis remains an independently connected switch. Discovery, configuration, and monitoring across multiple devices do not add dedicated stack ports or create a shared stack forwarding fabric.
The Cisco 250 Series Smart Switches support static IPv4 routing with 32 routes and 16 IP interfaces, corresponding to Layer 2+ functionality. Layer 3 interfaces can use physical ports, LAGs, VLAN interfaces, or loopbacks. Check both route and interface counts before assigning local gateway duties.
SG250X-48P-K9-EU uses an internal 100-240V AC power supply without an internal redundant-supply option. Worst-case consumption including PoE reaches 502.3W at 110V and 487.1W at 220V. Size the AC feed and backup power around total input consumption, not just the endpoint PoE allocation.
SG250X-48P-K9-EU supplies PoE+ on its 48 Gigabit access ports, while SG250X-48-K9-EU provides no PoE output. Both models are discontinued. The powered model fits like-for-like spares for switches feeding Ethernet-powered endpoints; the non-PoE sibling fits installed configurations whose endpoints use separate power.
SG250X-48P-K9-EU has 48 Gigabit access ports, while SG250X-24P-K9-EU has 24. Both are discontinued PoE+ models, so compare them for an existing-installation requirement. The higher-density model suits a like-for-like spare where more endpoint connections are needed; the smaller model suits an existing 24-port configuration.
C1200-48P-4X provides four 10G SFP+ uplinks, while SG250X-48P-K9-EU splits its four 10G uplinks between two copper ports and two SFP+ cages. C1200-48P-4X is the current migration endpoint after discontinued CBS250-48P-4X-EU. The older model suits installed-base matching; the successor suits new purchases needing four optical uplinks.
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