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SF550X-48MP-K9
Cisco SF550X-48MP-K9 550X 48-Port Fast Ethernet PoE+ Switch,...
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SF550X-48MP-K9 combines 48 10/100 PoE+ access ports with four fixed 10G uplinks in a managed, stackable small-business switch. Two uplinks are dedicated SFP+ cages; the other two pair 10GBase-T with SFP+ as shared combo connections, with one medium active per pair. The Rack-Mount 1U chassis belongs to the Cisco 550X Series and provides Layer 2+ switching with routing for segmented business networks. Powered access serves IP phones, surveillance cameras, and compatible wireless access points whose Ethernet requirements remain within Fast Ethernet speeds. The discontinued SF550X-48P-K9-NA is the lower-power-budget sibling for legacy configurations with less aggregate endpoint demand. Gigabit endpoint connectivity is not available on this model's access ports.
SF550X-48MP-K9 price is is available on request. Get immediate quote.
Request bulk order quote for SF550X-48MP-K9 for additional pricing. Browse the full Cisco SF550X Switches series or explore all Cisco products.
89.6 Gbps switching capacity supports the access and uplink fabric, while 66.66 Mpps forwarding specifies packet-processing capacity for 64-byte frames. 740W of shared PoE output requires an endpoint allocation plan rather than unrestricted maximum draw across every powered connection. Static routing and RIP v2 handle local routing, with PBR and VRRP v2/v3 providing policy-based forwarding and gateway redundancy. SF550X-48MP-K9 supports 7168 IPv4 routes and 16000 MAC entries, while 512 MB of memory and 256 MB of flash support control functions and image storage. A dynamically shared 3 MB packet buffer serves traffic across the ports. Hardware stacking groups eight members under one system identity, and cross-stack LACP joins links across units. Cisco SF550X-48MP management includes browser-based HTTP/HTTPS access alongside console and SSH/Telnet CLI access. 842.1W worst-case draw at 110V includes PoE load for electrical sizing. The internal power supply is not dual-redundant.
ORM Systems supplies SF550X-48MP-K9 in new sealed and certified refurbished condition; refurbished units are inspected and bench-tested, with every port linked at rated speed, PoE output verified under load on every powered port, optics bay recognition checked, firmware verified, and configuration wiped to factory default. Select the condition, regional ordering form, and required accessories before placing the order. New units carry up to a 3-year extended ORM warranty and certified refurbished units up to 1 year, with 30-day returns on every condition; terms apply, and Cisco's original Limited Lifetime warranty and service ended June 30, 2025. POs are accepted for enterprise and volume orders, with Net-30 for government, RMA with advance replacement, and regional stock/RMA across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 10/100 PoE+, 4 x 10G uplinks |
PoE Budget | 740W shared |
Stacking | Hardware stacking, eight members |
Replaces | SF500-48MP; end of sale December 30, 2017 |
Lifecycle Status | Cisco support ended June 30, 2025 |
Replacement PID | C1300-48FP-4X |
When an existing site needs switch-based gateways rather than a separate gateway for each subnet, the hardware supports 256 IP interfaces and an integrated DHCP server. Interface configuration can use physical ports, link aggregation groups, VLAN interfaces, or loopbacks. Specify the interface plan and DHCP scopes before the PO.
When the same spare is needed across destination markets, regional ordering suffixes must follow the receiving country. SF550X-48MP-K9-NA covers the United States, while SF550X-48MP-K9-EU and SF550X-48MP-K9-UK cover their respective market groups. Record the full regional PID and destination for each line before submitting the purchase order.
When a lab or staging bench must reproduce a traffic issue, port mirroring accepts eight source ports, and RSPAN can send captured traffic across a Layer 2 domain. The analyzer connection is a separate planning item. Specify capture sources, destination ports, and the monitoring path before ordering.
Gigabit connectivity on every access port
SF550X-48MP-K9 limits access links to 100 Mbps. C1300-48FP-4X is the current replacement with 48 Gigabit access ports and four 10G SFP+ uplinks.
Active Cisco service and support
Cisco service for SF550X-48MP-K9 ended June 30, 2025. C1300-48FP-4X is the current replacement rather than another discontinued intermediate model; confirm service eligibility with the order.
Two internal redundant power supplies
SF550X-48MP-K9 uses an internal universal supply; power redundancy depends on an external redundant power system. A second internal redundant PSU is not an available configuration.
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| SF550X-48MP-K9 |  SF550X-24 |  SF550X-48P-K9 |  SF550X-48MP |  SF550X-24P-K9 | |
|---|---|---|---|---|---|
| Depth | 350 mm | 257 mm | 350 mm | 350 mm | 257 mm |
| Ethernet Technology | Fast Ethernet | Fast Ethernet | Fast Ethernet | Fast Ethernet | Fast 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 | SF550X-48MP-K9 | SF550X-24 | SF550X-48P-K9 | SF550X-48MP | SF550X-24P-K9 |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 842.1W | 20.8W | 461.8W | 842.1W | 242.1W |
| Switching Capacity | 89.6 Gbps | 84.8 Gbps | 89.6 Gbps | 89.6 Gbps | 84.8 Gbps |
| Weight | 5.16 kg | 3.09 kg. | 5.09 kg | 5.16 kg | 4.14 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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SF550X-48MP-K9 identifies the 550X Fast Ethernet model with 48 powered access ports and a 740W PoE allocation. MP separates this higher-power version from 48P. Complete regional forms include SF550X-48MP-K9-NA for North America and SF550X-48MP-K9-UK for the United Kingdom; the regional suffix completes the ordering identity.
SF550X-48MP-K9 is managed through HTTP/HTTPS web access, a console or SSH/Telnet CLI, SNMP, and Smart Network Application. Legacy integrations include FindIT Network Manager, an embedded FindIT Network Probe, FindIT Network Discovery Utility, and Active Advisor. Cisco Network Plug and Play supports provisioning, while full and menu CLI modes are available.
SF550X-48MP-K9 reached end of sale on June 18, 2020, and Cisco support ended June 30, 2025. Software maintenance ended June 18, 2021. New sealed inventory does not restart those milestones. C1300-48FP-4X is the current replacement at the end of the migration path.
ORM Systems offers SF550X-48MP-K9 new sealed with up to a 3-year extended warranty, or certified refurbished with up to 1 year. Returns are available for 30 days on every condition; terms apply. Cisco's original Limited Lifetime warranty and service ended June 30, 2025. Refurbished units are inspected and bench-tested.
SF550X-48MP-K9 replaced SF500-48MP, whose end-of-sale date was December 30, 2017. SF550X-48MP-K9 is also discontinued, so that relationship helps identify legacy spare requirements rather than a currently sold Cisco model. C1300-48FP-4X is the current endpoint of the subsequent replacement path for buyers moving beyond the older hardware.
SF550X-48MP-K9 provides a shared 740W PoE budget across 48 powered ports, including 16 ports supporting 60W PoE; other powered ports support 30W PoE+. The total is shared, not a promise of maximum output on every port simultaneously. Match high-power endpoint compatibility and aggregate demand before assigning ports.
SF550X-48MP-K9 has four fixed 10G uplinks: two dedicated SFP+ ports and two 10GBase-T/SFP+ combo ports. Each combo pair activates one medium at a time. SFP-10G-SR serves multimode fiber and SFP-10G-LR serves single-mode fiber. Specify compatible optics separately; no removable uplink card is required.
Cisco 550X hardware stacking supports eight members, using standard 10G copper or fiber interfaces in ring or chain layouts. Mixed stacks can include SF550X, SG550X, SG550XG, and SX550X models. SFP-H10GB-CU1M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M are compatible direct-attach cable choices. Allocate those interfaces before counting remaining uplinks.
SF550X-48MP-K9 supports Static routing, RIP v2, PBR, and VRRP v2/v3, with a maximum of 7168 IPv4 routes. IPv6 static routing supports 1792 routes. The dynamic-routing option is RIP v2, and gateway redundancy is available through VRRP; routing interfaces can be physical, VLAN, loopback, or link aggregation interfaces.
SF550X-48MP-K9 does not provide a second internal redundant PSU; an internal universal AC supply accepts 100-240V AC, and redundancy uses an external redundant power system. Worst-case draw reaches 842.1W at 110V with PoE load. The cooling system has five fans, including one redundant fan.
SF550X-48MP-K9 supplies a 740W PoE budget, while SF550X-48P-K9-NA supplies 382W. Both are discontinued Fast Ethernet models. The higher-budget model suits an installed deployment with greater aggregate endpoint demand; the 48P variant suits a lower-power legacy configuration where matching existing hardware is the purchase requirement.
SF550X-48MP-K9 provides 48 access ports, whereas SF550X-24MP-K9-NA provides 24. Both are discontinued members of the same family. The 48-port model suits a legacy spare plan requiring higher connection density; the 24-port model fits an existing installation whose required access-port count is lower.
C1300-48FP-4X provides Gigabit access ports, whereas SF550X-48MP-K9 provides 10/100 access ports. Both configurations include four 10G uplinks, but the SF550X model is discontinued and past Cisco support. The older hardware serves deliberate legacy requirements; the current replacement suits a refresh requiring Gigabit connectivity for connected endpoints.
United States
