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SG250X-48P-K9-NA

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Cisco SG250X-48P-K9-NA SG250X 48-Port Gigabit PoE+ Switch, 2x10GBASE-T and 2x10G SFP+ Uplinks
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sg250x-48p-k9-na cisco sg250x-48p-k9-na sg250x 48-port gigabit poe+ switch, 2x10gbase-t and 2x10g sfp+ uplinks
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SG250X-48P-K9-NA

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Cisco SG250X-48P-K9-NA SG250X 48-Port Gigabit PoE+ Switch, 2...

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Mixed Copper and Fiber Uplinks for Powered Access

SG250X-48P-K9-NA combines 48 Gigabit PoE+ access ports with four fixed 10G uplinks split between two 10GBASE-T copper ports and two SFP+ cages. This Layer 2+ smart-managed switch belongs to the Cisco 250 Series Smart Switches family and occupies a single rack unit. Computers, IP phones, wireless access points, and cameras can share the access network, with electrical power delivered over endpoint cables where required. The mixed uplink media accommodates copper connections to nearby equipment while retaining optical connections for fiber runs. The discontinued SG250X-48-K9-NA provides the same access-port density and uplink arrangement but does not supply PoE. This 48-port Gigabit PoE+ smart switch with 10G uplinks serves existing installations requiring that specific copper-and-fiber connection layout.

SG250X-48P-K9-NA price for new stock is is available on request. Get immediate quote. SG250X-48P-K9-NA refurb price is $1,153.95.

Request bulk order quote for SG250X-48P-K9-NA for additional pricing. Browse the full Cisco SG250X Switches series or explore all Cisco products.

Technical Details

176 Gbps switching capacity provides nonblocking, wire-speed forwarding across the installed ports. 130.94 Mpps forwarding at a 64-byte packet size defines small-packet throughput. 382W of shared PoE power supports allocated endpoint loads rather than maximum output on every powered port simultaneously. Static routing handles inter-VLAN traffic through manually configured paths, with a ceiling of 32 IPv4 routes rather than dynamic route exchange. SG250X-48P-K9-NA pairs 512 MB of memory with 256 MB of flash, while a dynamically shared 24 Mb packet buffer serves the ports. STP/RSTP/MSTP provide loop-control options, and LACP supports four aggregation groups with eight active ports per group. Segmentation supports 255 simultaneously active VLANs. Browser-based configuration and SSH access provide local administration, while SNMP supports external monitoring. 502.3W worst-case input consumption with PoE at 110V AC is the electrical sizing figure, distinct from power available to connected devices.

Ordering

Order SG250X-48P-K9-NA new sealed or certified refurbished, and specify the condition and required accessories on the PO. Certified refurbished units are inspected and bench-tested for power-on, POST, clean boot, every port linking at rated speed, PoE output under load on every powered port, optics bay recognition, PSU status, and fan status; firmware is verified and configurations are wiped to factory default. ORM provides up to a 3-year extended warranty for new units, up to 1 year for certified refurbished units, and 30-day returns in either condition, terms apply; Cisco's original limited lifetime hardware warranty and 1-year fan and power-supply coverage remain subject to entitlement and the October 31, 2026 support deadline. Enterprise and volume POs are accepted, with Net-30 for government, RMA with advance replacement, and regional stock/RMA coverage across the UK, EU, US, and MEA.

Buying Notes

Buying NotesKey Specs

Current migration ordering path

C1200-48P-4X is the current migration target for SG250X-48P-K9-NA rather than CBS250-48P-4X-NA. That intermediate replacement is discontinued following its October 29, 2024 end-of-sale date, so exclude it from current-model requirements.

Optical link ordering requirements

Optical links require separately ordered SFP-10G-SR for multimode fiber or SFP-10G-LR for single-mode fiber. Confirm fiber type, distance, and the far-end connection before releasing the purchase order.

Key Specs

Key SpecsKey Spec Values

Port Configuration

48x1G PoE+ / 2x10GBASE-T / 2x10G SFP+

PoE Budget

382W shared

Max Power Draw

502.3W with PoE at 110V AC

Cooling

4 fans

Lifecycle Status

End of sale October 30, 2021

Replacement PID

C1200-48P-4X

SG250X-48P-K9-NA Specifications

Manufacturer Part Number
SG250X-48P-K9-NA
Brand
Cisco
Series
SG250X
Use Case
SMB
Management Type
Smart Managed
Layer
Layer 2+
Routing Protocols
Static
Ethernet Technology
Gigabit Ethernet
RJ-45 Access Port Count
48
Power Input
Internal AC PSU
RJ-45 Ports
48 x 1GbE PoE+ / 2 x 10GbE uplinks
SFP+ Ports
2 x 10GbE
Uplink Type
Fixed
Uplink Speed Class
10G
PoE Support
PoE+
PoE Port Count
48 PoE Ports
PoE Budget
382W
Switching Capacity
176 Gbps
Forwarding Rate
130.94 Mpps
MAC Table Size
8000 Entries
IPv4 Route Scale
32 Routes
Memory
512 MB
Flash Memory
256 MB
Form Factor
Rack-Mount 1U
Input Voltage
100-240V AC
Power Consumption
502.3W
Redundant PSU
No
Cooling
4 fans
Operating Temperature
0°C to 50°C
MTBF
53722 Hours
Cisco Warranty
Limited Lifetime hardware / 1 year for fans / 1 year for power supplies / Cisco service ends October 31, 2026
Certifications
UL 60950 / CSA 22.2 / CE mark / FCC Part 15 (CFR 47) Class A
Height
44 mm
Width
440 mm
Depth
350 mm
Weight
4.84 kg

Best For

Endpoint Power Refresh

When a phone, camera, or wireless access-point refresh changes endpoint demand, size power allocations before selecting switch quantities. Individual powered ports can deliver 30W within the shared allowance, and time-based PoE can follow operating schedules. Specify each endpoint's required input power and the intended power-on timetable before the purchase order.

Local Workgroup Routing

When separate workgroups need local communication between VLANs, routed interfaces can reside on physical ports, link aggregation groups, VLANs, or loopbacks. The ceiling is 16 IP interfaces across the switch. Count the required gateway interfaces and confirm the addressing plan before specifying the switch quantity.

Multi-Site Configuration Staging

When several branches need the same starting configuration, text-editable configuration files can be downloaded to additional switches, and SCP autoconfiguration can transfer them securely. CLI privilege levels 1, 7, and 15 separate administrative access. Specify the staging configuration, file-transfer method, and required administrator roles before releasing the order.

Not Suitable If

More than 30W per endpoint

Each powered access port supplies a maximum of 30W. Devices requiring more power cannot receive their full rated input directly from these access ports.

Four fiber-based 10G uplinks

Only two uplinks accept SFP+ optics; the other two use 10GBASE-T copper. C1200-48P-4X provides four 10G SFP+ uplinks while retaining 48 Gigabit access ports.

Cisco support beyond October 2026

Cisco support for this model ends October 31, 2026. C1200-48P-4X is the current migration target for purchases that require a continuing Cisco product lifecycle.

Product Comparison Table

Cisco SG250X-48P-K9-NA SG250X 48-Port Gigabit PoE+ Switch, 2x10GBASE-T and 2x10G SFP+ UplinksSG250X-48P-K9-NACisco SG250X-48-K9-UK 250 48-Port Gigabit Switch, 2x10GBASE-T and 2x10G SFP+ UplinksSG250X-48-K9-UKCisco SG250X-24P Gigabit PoE with 4-Port 10-Gigabit Smart SwitchSG250X-24PCisco SG250X-48P Gigabit PoE with 4-Port 10-Gigabit Smart SwitchSG250X-48PCisco SG250X-48-K9-NA 250 48-Port Gigabit Switch, 4x10G UplinksSG250X-48-K9-NA
Depth350 mm257 mm257 mm350 mm257 mm
Ethernet TechnologyGigabit EthernetGigabit EthernetGigabit EthernetGigabit EthernetGigabit Ethernet
Flash Memory256 MB256 MB256 MB256 MB256 MB
Form FactorRack-Mount 1URack-Mount 1URack-Mount 1URack-Mount 1URack-Mount 1U
Height44 mm44 mm44 mm44 mm44 mm
Manufacturer Part NumberSG250X-48P-K9-NASG250X-48-K9-UKSG250X-24PSG250X-48PSG250X-48-K9-NA
Memory512 MB512 MB512 MB512 MB512 MB
Power Consumption502.3W46W260.1W502.3W46W
Switching Capacity176 Gbps176 Gbps128 Gbps176 Gbps176 Gbps
Weight4.84 kg3 kg3.86 kg.4.84 kg3 kg
Width440 mm440 mm440 mm440 mm440 mm

Compliance & Warranty

ISO 27001
ISO 45001
RoHS
REACH
FCC
CE
UKCA
VCCI
ISO 9001
ISO 14001

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Rigorously Tested & Quality Assured

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Questions & Answers

What does the SG250X-48P-K9-NA part number mean?

SG250X-48P-K9-NA identifies a 48-port Gigabit PoE+ smart switch with 10G uplinks for the NA region. SG250X identifies the model group, 48 denotes the access-port count, and P identifies PoE+. The SG250X-48P-K9 ordering identifier receives the NA suffix for the United States, Canada, Mexico, Colombia, Chile, and remaining Latin America.

How is SG250X-48P-K9-NA managed?

SG250X-48P-K9-NA supports HTTP/HTTPS browser management, CLI access over SSH or Telnet, SNMP, Smart Network Application, FindIT Network Manager with an embedded Probe, and Cisco Active Advisor. Full and menu-based CLI modes support administration, while Network Plug and Play and PnP Connect provide additional provisioning paths.

Is SG250X-48P-K9-NA end of sale?

Yes, SG250X-48P-K9-NA reached end of sale on October 30, 2021, and its last date of Cisco support is October 31, 2026. Software maintenance ended October 30, 2022. Hardware purchases must account for that support deadline rather than treating remaining new inventory as a current Cisco offering.

What condition and warranty options does ORM Systems offer for SG250X-48P-K9-NA?

ORM Systems offers SG250X-48P-K9-NA new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Returns are accepted within 30 days in either condition; terms apply. Cisco's original limited lifetime hardware warranty is bounded by the October 31, 2026 support end date.

How much PoE power does SG250X-48P-K9-NA provide?

SG250X-48P-K9-NA provides a shared 382W PoE budget across 48 powered access ports, with a maximum of 30W on an individual port. Supplying 30W to all 48 ports would require 1440W, exceeding that allowance. Size the combined endpoint allocation rather than assuming every port can deliver its maximum simultaneously.

Which uplinks and optics does Cisco SG250X-48P support?

Cisco SG250X-48P has two fixed 10GBASE-T copper uplinks and two fixed 10G SFP+ uplinks, not four optical uplinks. SFP-10G-SR supports multimode fiber, while SFP-10G-LR supports single-mode fiber. SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M provide supported direct-attach cable options for short connections between equipment.

Can SG250X-48P-K9-NA route between VLANs?

Yes, SG250X-48P-K9-NA supports static routing between VLANs, with 32 IPv4 static routes and 16 IP interfaces. Routed interfaces can be assigned to physical ports, link aggregation groups, VLAN interfaces, or loopbacks. Routing uses manually configured paths rather than dynamic route exchange, so gateway and route counts must fit those limits.

What is the maximum power consumption of SG250X-48P-K9-NA?

SG250X-48P-K9-NA consumes a worst-case 502.3W with PoE at 110V AC, compared with 487.1W at 220V AC. System-only worst-case consumption is 68.4W at 110V or 70.3W at 220V. These input figures include different operating loads and must not be confused with the separate 382W endpoint power budget.

How much rack space does Cisco SG250X-48P need?

Cisco SG250X-48P occupies 1U and measures 440 mm wide, 44 mm high, and 350 mm deep, with a weight of 4.84 kg. Four fans provide cooling, so the unit is not fanless. Confirm cabinet depth, cable clearance, and installation conditions against its 0°C to 50°C operating range.

What is the difference between SG250X-48P-K9-NA and SG250X-48-K9-NA?

SG250X-48P-K9-NA supplies PoE+ through its 48 Gigabit access ports, while SG250X-48-K9-NA does not supply endpoint power. Both have two 10GBASE-T uplinks and two SFP+ uplinks, and both are discontinued. The powered version serves existing installations with powered endpoints; the non-PoE version serves endpoints with separate power.

What is the difference between SG250X-48P-K9-NA and SG250X-24P-K9-NA?

SG250X-48P-K9-NA has 48 Gigabit PoE+ access ports, while SG250X-24P-K9-NA has 24. Both retain two copper 10G uplinks and two SFP+ uplinks, and both are discontinued. The 24-port version addresses smaller existing installations; the 48-port version addresses buyers maintaining a higher access-port density.

What is the difference between SG250X-48P-K9-NA and C1200-48P-4X?

SG250X-48P-K9-NA divides its 10G uplinks between two copper ports and two SFP+ cages, while C1200-48P-4X provides four 10G SFP+ uplinks. The former is discontinued; the latter is the current migration target. Existing mixed-media installations may require the older layout, while current optical-uplink purchases align with C1200-48P-4X.