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SG350-52-K9-NA
Cisco SG350-52-K9-NA 350 48-Port Gigabit Switch, 2x1G Combo...
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SG350-52-K9-NA provides 48 dedicated Gigabit Ethernet access ports, two Gigabit copper/SFP combo interfaces, and two dedicated Gigabit SFP interfaces in a managed, non-PoE switch. Its fixed uplinks accommodate copper or fiber connections without an uplink expansion card, while each combo interface permits only one medium to operate at a time. The full-width 1U chassis belongs to the Cisco 350 Series within the Cisco Small Business portfolio. Layer 2+ functionality combines managed Ethernet switching with local routing capabilities for business workgroups. Computers, printers, and separately powered endpoints connect without allocating an endpoint power budget. The discontinued SG350-52P-K9-NA differs by supplying PoE+ with a shared 375W budget, rather than data connectivity alone.
SG350-52-K9-NA price for new stock is is available on request. Get immediate quote. SG350-52-K9-NA refurb price is $892.50.
Request bulk order quote for SG350-52-K9-NA 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 handles the specified 64-byte packet workload. Static IPv4 routing supports 990 routes for manually configured paths, while PBR selects next hops through IPv4 or IPv6 access-control criteria; dynamic routing adjacencies are not part of this routing feature set. SG350-52-K9-NA combines 512 MB of DRAM with 256 MB of flash for control software and stored files. A dynamically shared 3 MB packet buffer accommodates traffic across the ports rather than reserving a separate buffer allocation for each connection. The address table holds 16000 MAC entries, and support for 4094 simultaneous VLANs accommodates traffic segmentation. STP, RSTP, and MSTP provide spanning-tree choices, while LACP supports aggregated Ethernet links. Administrators can use browser-based configuration or the Textview CLI, including secure remote access through SSH.
ORM Systems offers SG350-52-K9-NA new sealed or certified refurbished, with up to a 3-year extended warranty on new units, up to 1 year on refurbished units, and 30-day returns on every condition; terms apply. Refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, optics recognition, PSU and fan status, and clean boot, with firmware verified and configuration wiped to factory default. Specify condition, quantity, and required transceivers on your purchase order; Cisco's separate limited lifetime hardware warranty cannot extend beyond October 31, 2026. For enterprise and volume orders, ORM accepts POs, offers Net-30 for government, and handles RMA with advance replacement; regional stock and RMA cover the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48x1G RJ-45 / 2x1G combo / 2x1G SFP. |
Cooling | 1 fan. |
Replaces | SRW2048-K9-NA; end-of-sale October 4, 2018. |
Lifecycle Status | End-of-sale October 30, 2021. |
Replacement PID | C1300-48T-4G. |
When workgroups need separate local gateways, the switch supports 128 IP interfaces across physical ports, link aggregation groups, VLAN interfaces, and loopback interfaces. Prepare the addressing and gateway assignments alongside the upstream routing plan, then confirm the required interface count before the purchase order.
When a branch adds voice endpoints alongside ordinary data devices, eight hardware queues provide the scheduling structure for traffic priorities. Automatic voice VLAN assignment and LLDP-MED support endpoint configuration. Define the voice VLAN, trust settings, and endpoint configuration requirements before specifying the rollout order.
When replacement units are prepared before delivery to a site, dual firmware images and front-panel USB file transfer support image and configuration staging. Text-editable configuration files can be transferred between switches. Specify the intended firmware image and retained configuration package before issuing the purchase order.
10G uplinks to distribution
SG350-52-K9-NA has Gigabit uplinks, not 10G interfaces. C1300-48T-4X provides four 10G SFP+ uplinks while retaining 48 Gigabit access ports.
Switch-powered phones and access points
SG350-52-K9-NA provides data connectivity without PoE output. C1300-48P-4G adds PoE across 48 Gigabit access ports with four dedicated Gigabit SFP uplinks.
Dynamic routing protocol adjacencies
SG350-52-K9-NA supports manually configured static routes and policy-based forwarding; establishing dynamic routing adjacencies is outside the switch's routing capabilities.
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| SG350-52-K9-NA |  SG350-52MP-K9 |  SG350-10SFP-K9 |  SG350-10P |  SG355-10P-K9-EU | |
|---|---|---|---|---|---|
| Depth | 257 mm | 350 mm | 170 mm | 170 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 | Rack-Mount 1U | Desktop | Desktop | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | SG350-52-K9-NA | SG350-52MP-K9 | SG350-10SFP-K9 | SG350-10P | SG355-10P-K9-EU |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 40.4W at 110V AC | 858W | 11.9W | 84.7W | 83.5W |
| SFP Ports | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 8 x 1GbE / 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 104 Gbps | 104 Gbps | 20 Gbps | 20 Gbps | 20 Gbps |
| Weight | 2.75 kg. | 3.83 kg | 2.08 kg | 1.19 kg | 2.36 kg |
| Width | 440 mm | 440 mm | 279.4 mm | 280 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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SG350-52-K9-NA identifies the Cisco 350 Series Gigabit managed model with 52 system ports and the NA regional suffix. SG350 names the model family, while 52 includes access and uplink interfaces. NA covers the United States, Canada, Mexico, Colombia, Chile, and the remaining Latin American markets.
SG350-52-K9-NA supports HTTP/HTTPS browser management, Textview CLI through the RJ-45 console or SSH/Telnet, and SNMP. Network-level options include Smart Network Application, FindIT Network Manager with an embedded Probe, and Cisco Active Advisor. FindIT Network Discovery assists discovery, while Network Plug and Play with PnP Connect handles provisioning.
SG350-52-K9-NA reached end of sale on October 30, 2021, and Cisco support ends October 31, 2026. Software maintenance ended October 30, 2022. The original replacement, CBS350-48T-4G-NA, is also discontinued; C1300-48T-4G is the current endpoint of that replacement chain.
SG350-52-K9-NA is available new sealed or certified refurbished. ORM provides up to a 3-year extended warranty on new units, up to 1 year on certified refurbished units, and 30-day returns on every condition; terms apply. Cisco's separate limited lifetime hardware warranty cannot extend beyond October 31, 2026.
SG350-52-K9-NA replaces SRW2048-K9-NA, the SG300-52 Gigabit managed switch that reached end of sale on October 4, 2018. For an existing Small Business installation, compare the current cabling, gateway assignments, and management workflow before specifying a replacement rather than assuming that configuration files transfer unchanged.
The SG350-52 has 52 usable network interfaces: 48 dedicated Gigabit RJ-45 access ports, two Gigabit copper/SFP combo interfaces, and two dedicated Gigabit SFP interfaces. Each combo interface activates either its copper connector or its SFP slot, so those paired connectors cannot carry separate connections simultaneously.
SG350-52-K9-NA provides static IPv4 routing for 990 routes and supports PBR using IPv4 or IPv6 access-control criteria. The switch supports 128 IP interfaces, including VLAN and physical interfaces. Use these capabilities for explicitly configured internal paths; dynamic routing adjacencies are not part of this feature set.
The Cisco 350 Series supports MGBSX1 for Gigabit multimode fiber connections to 500 m and MGBLX1 for Gigabit single-mode fiber connections to 10 km. Order the required MGBSX1 or MGBLX1 separately and match the fiber type and remote interface before committing the fiber connection to the purchase order.
SG350-52-K9-NA provides no PoE output, whereas SG350-52P-K9-NA supplies PoE+ across 48 access ports with a shared 375W budget. Both models are discontinued. The non-PoE model suits separately powered endpoints; the powered model addresses existing installations that require endpoint power, subject to that shared budget.
SG350-52-K9-NA has 48 dedicated Gigabit access ports, while SG350-28-K9-NA has 24. Both models are discontinued. The higher-density model accommodates more access connections in one chassis; the lower-density model suits an existing installation whose endpoint count does not require the additional dedicated copper ports.
SG350-52-K9-NA combines two dedicated Gigabit SFP interfaces with two copper/SFP combo interfaces, whereas C1300-48T-4G provides four dedicated Gigabit SFP uplinks. The discontinued model suits replacement requirements involving its existing shared-port arrangement; the current successor suits buyers specifying four dedicated fiber uplinks rather than shared copper/fiber interfaces.
The SG350-52 occupies 1U in a full-width rack and measures 440 mm wide, 44 mm high, and 257 mm deep. Its chassis weighs 2.75 kg and uses one cooling fan. Include the chassis depth and cable routing in the rack layout before specifying installation space.
United States
