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SG250X-48-K9-NA
Cisco SG250X-48-K9-NA 250 48-Port Gigabit Switch, 4x10G Upli...
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SG250X-48-K9-NA is a Layer 2+ smart-managed switch with 48 Gigabit Ethernet access ports and four fixed 10G uplinks: two 10GBASE-T ports and two SFP+ cages. The mixed-media uplink arrangement accommodates copper and fiber connections without a removable uplink card. The 1U rack chassis belongs to the Cisco 250 Series Smart Switches family, serving small-business networks connecting computers, printers, servers, and separately powered endpoints. Port-based and tag-based VLANs separate workgroups, while voice VLAN support handles connected phones. The discontinued SG250X-48P-K9-NA sibling supplies PoE+ with a shared 382W budget; this configuration provides data-only access ports.
SG250X-48-K9-NA price for new stock is is available on request. Get immediate quote. SG250X-48-K9-NA refurb price is $558.48.
Request bulk order quote for SG250X-48-K9-NA for additional pricing. Browse the full Cisco SG250X Switches series or explore all Cisco products.
176 Gbps switching capacity supports wire-speed, nonblocking forwarding across the chassis. 130.94 Mpps forwarding at 64-byte packets defines packet-processing throughput independently of link bandwidth. Static IPv4 routing supports 32 routes for manually configured next hops. SG250X-48-K9-NA carries 512 MB of DRAM and 256 MB of flash for its embedded switching software. A shared 24 Mb packet buffer serves all ports, while an 8000-entry MAC table supports address learning. Embedded SG250X-48 software accommodates 255 active VLANs and supplies STP/RSTP/MSTP and LACP for loop control and link aggregation. Browser configuration and scriptable CLI access are complemented by SNMP monitoring; configuration changes must be saved to startup configuration to survive a restart. 46W maximum system consumption supplies the figure for cabinet power sizing without an endpoint-power allowance. Two fans cool the unit across a 0°C to 50°C operating range, so cabinet placement must account for active cooling rather than fanless operation.
Specify SG250X-48-K9-NA in new sealed or certified refurbished condition, with the quantity and required accessories on the purchase order. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot, optics bay recognition, PSU status, and fan status; firmware is verified and the configuration is wiped to factory default. New units carry up to a 3-year extended ORM warranty and certified refurbished units up to 1 year, with 30-day returns on either condition; terms apply. For enterprise and volume orders, ORM accepts POs, provides Net-30 for government, and offers RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48x1G / 2x10GBASE-T / 2x10G SFP+ |
Max Power Draw | 46W |
Cooling | 2 fans |
Lifecycle Status | End of sale October 30, 2021 |
Replacement PID | C1200-48T-4X |
When a rollout brings departmental gateways onto the access switch, prepare the interface inventory before ordering the cabinet equipment. The 16-IP-interface limit governs how many local interfaces can terminate on ports, VLANs, link-aggregation groups, or loopbacks. Include the proposed interface map in the purchase specification and check its size before the PO.
When replacement hardware must pass staging before shipment to a branch, use the dual firmware images to organize the intended software state. Separate the image selection from the configuration acceptance check, and retain the approved configuration in startup storage. Specify the required firmware and configuration acceptance steps before the PO.
When existing SG250X-48-K9-NA installations require regional spare stock, retain the complete part number rather than ordering by port count alone. ORM offers regional stock and RMA coverage across the UK, EU, US, and MEA. Identify the destination region, required condition, and spare quantity on the purchase order.
PoE-powered phones and access points
SG250X-48-K9-NA supplies no PoE to endpoints. C1200-48P-4X is the current powered alternative with 48 Gigabit ports and four 10G SFP+ uplinks.
More than 32 static routes
SG250X-48-K9-NA supports 32 IPv4 static routes. A routing requirement above that limit exceeds the switch's capacity, even when unused physical ports remain available.
Fanless operation in occupied rooms
SG250X-48-K9-NA uses two fans and produces 36.6 dB at 0°C to 30°C. A fanless requirement rules out this chassis, including desktop placement.
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| SG250X-48-K9-NA |  SG250X-48 |  SG250X-24 |  SG250X-48P |  SG250X-24P | |
|---|---|---|---|---|---|
| Depth | 257 mm | 257 mm | 257 mm | 350 mm | 257 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-48-K9-NA | SG250X-48 | SG250X-24 | SG250X-48P | SG250X-24P |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 46W | 46W | 29.1W | 502.3W | 260.1W |
| Switching Capacity | 176 Gbps | 176 Gbps | 128 Gbps | 176 Gbps | 128 Gbps |
| Weight | 3 kg | 3 kg. | 2.66 kg | 4.84 kg | 3.86 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SG250X-48-K9-NA identifies a 48-port Gigabit smart switch with four 10G uplinks. SG250X identifies the 10G-uplink models within the 250 Series, and 48 identifies the access-port count. NA is the regional suffix covering the United States, Canada, Mexico, Colombia, Chile, and the rest of Latin America.
SG250X-48-K9-NA supports an HTTP/HTTPS web interface, full and menu-based CLI over SSH or Telnet, and SNMP v1/v2c/v3 management. Network-level options include Smart Network Application, FindIT Network Manager with an embedded FindIT Network Probe, and Cisco Active Advisor. FindIT Network Discovery Utility supports browser-based discovery, while Cisco PnP Connect supports provisioning.
SG250X-48-K9-NA is discontinued: Cisco ended sales on October 30, 2021, and support ends October 31, 2026. The immediate replacement, CBS250-48T-4X-NA, is also discontinued following its October 29, 2024 end-of-sale date. C1200-48T-4X is the current endpoint of that replacement chain and retains 48 Gigabit access ports.
SG250X-48-K9-NA is available new sealed or certified refurbished, with ORM warranty coverage of up to 3 years extended for new units and up to 1 year for certified refurbished units. Returns are accepted for 30 days in either condition; terms apply. Cisco's limited lifetime hardware warranty and applicable support end October 31, 2026.
SG250X-48-K9-NA supports SFP-10G-SR for multimode 10G fiber links and SFP-10G-LR for single-mode 10G fiber links. Direct copper options include SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M for 1 m, 3 m, and 5 m connections. Specify the media and matching remote-end equipment separately from the chassis.
Yes, Cisco 250 Series Smart Switches support IPv4 static routing with 32 static routes and 16 IP interfaces. Interfaces can terminate on physical ports, VLANs, link-aggregation groups, or loopback interfaces. Routes are configured manually; the next hop follows the longest prefix match, so the route and interface plan must fit those limits.
SG250X-48-K9-NA occupies 1U in a 19-inch rack, with dimensions of 44 mm high, 440 mm wide, and 257 mm deep. The chassis weighs 3 kg and uses two fans. Specify cabinet clearance and airflow for a 0°C to 50°C operating environment rather than treating the unit as fanless desktop equipment.
SG250X-48-K9-NA uses an internal universal AC supply accepting 100-240V at 50-60 Hz. Worst-case system consumption is 46W at 110V and 45.6W at 220V, without endpoint PoE output. Use the voltage-specific consumption figure when allocating cabinet power and sizing the supply circuit for the intended installation.
SG250X-48P-K9-NA provides PoE+ with a shared 382W budget, whereas SG250X-48-K9-NA does not power endpoints. Both models are discontinued. The non-PoE model suits replacements serving separately powered devices; the powered model is the historical equivalent for powered endpoints, with each load checked against the shared budget before specifying replacement hardware.
SG250X-48-K9-NA has 48 Gigabit access ports, while SG250X-24-K9-NA has 24; each includes two 10GBASE-T and two 10G SFP+ uplinks. Both models are discontinued. For maintaining an existing installation, the 48-port model suits a full cabinet port requirement, while the 24-port model suits a smaller endpoint inventory.
SG250X-48-K9-NA combines two 10GBASE-T uplinks with two 10G SFP+ uplinks; C1200-48T-4X carries four 10G SFP+ uplinks. Both provide 48 Gigabit access ports. The discontinued SG250X model fits existing mixed-media replacements, while C1200-48T-4X is the current successor for buyers specifying an all-SFP+ uplink arrangement.
United States
