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SG300-52MP-K9
Cisco SG300-52MP-K9 Small Business 300 48-Port Gigabit PoE+...
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SG300-52MP-K9 is a managed Layer 2+ Gigabit switch with 48 PoE+ access ports and four additional Gigabit connections: two copper ports and two copper/SFP combo ports. Each combo connection uses either its copper socket or its fiber slot, not both simultaneously. The fixed uplink arrangement has no removable network-module bay. This Small Business 300 model concentrates powered endpoint connections in a rack-mount 1U chassis for compatible phones, wireless access points and other network devices. The discontinued SG300-52P-K9 carries a smaller 375W endpoint-power budget. Cisco 300 Series Switches provide configurable network segmentation and traffic handling, while this configuration combines a higher shared power allocation with copper and fiber connection choices.
SG300-52MP-K9 price for new stock is $1,044.75, a 53.8% saving from the Cisco list price of $2,260.06. SG300-52MP-K9 refurb price is $724.50. SG300-52MP-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for SG300-52MP-K9 for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
104 Gbps switching capacity accommodates simultaneous switched traffic across the installed interfaces. 77.38 Mpps forwarding at 64-byte packet size defines packet-processing capacity independently of link bandwidth. 740W of shared PoE power must be allocated across connected endpoints; the budget does not guarantee every port's individual maximum simultaneously. Static IPv4 routing supports 512 routes and 128 IP interfaces for separately addressed workgroups without dynamic route exchange. SG300-52MP-K9 combines 128 MB of memory with 16 MB of flash for management software and stored configuration. A 16384-entry MAC table sets the address-learning ceiling. Administrators can use the browser interface, serial console or CLI over SSH and Telnet, with SNMP versions 1, 2c and 3 for monitoring. Four fans provide active cooling, so the chassis is not fanless. The operating range of 0°C to 45°C sets the allowable equipment-environment temperature.
ORM Systems supplies SG300-52MP-K9 new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units; Cisco's original hardware warranty and service ended October 31, 2023. 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 a clean boot, with firmware verified and configuration wiped to factory default. Specify the condition and regional power cord on the purchase order; returns cover every condition for 30 days, with terms applying. Enterprise and volume purchases can use accepted POs, Net-30 for government and RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 1G PoE+ / 2 x 1G copper / 2 combo |
PoE Budget | 740W shared |
Max Power Draw | 873.05W |
Cooling | 4 fans |
Lifecycle Status | Cisco support ended October 31, 2023 |
Replacement PID | C1300-48FP-4G |
When an existing deployment needs additional units configured consistently, editable configuration files allow settings to be prepared and transferred between switches. Secure Copy supports configuration-file delivery, while a scriptable CLI provides another provisioning path. Specify the required configuration baseline and staging procedure before issuing the purchase order.
When troubleshooting requires a dedicated capture connection, port mirroring supports eight source ports feeding one destination port within a single session. VLAN mirroring also supports a single session. Identify the required capture sources, destination connection and session boundaries before specifying the staging unit on the purchase order.
When a legacy installation needs replacement inventory across several regions, ORM Systems supports regional stock and RMA handling in the UK, EU, US and MEA. Advance-replacement RMA is available. Specify the destination region, required condition and replacement quantity before the purchase order so the commercial arrangement matches the spare requirement.
10G uplinks to distribution
SG300-52MP-K9 has Gigabit uplinks, not 10G connections. C1300-48FP-4X provides four 10G SFP+ uplinks with 48 Gigabit access ports for purchases requiring that uplink speed.
Four independent fiber uplinks
SG300-52MP-K9 provides two SFP connections shared with copper combo sockets. C1300-48FP-4G provides four 1G SFP uplinks for buyers requiring four fiber connections.
Active Cisco service eligibility
Cisco service for SG300-52MP-K9 ended October 31, 2023. C1300-48FP-4G is the current migration destination for purchases requiring a current model rather than a retired chassis.
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| SG300-52MP-K9 |  SRW2016-K9-NA |  SRW2048-K9-EU |  SF302-08 |  SRW2024P-K9-NA | |
|---|---|---|---|---|---|
| Depth | 350 mm | 202.5 mm | 257 mm | 10 inches | 257 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | 10/100/1000 | Gigabit Ethernet |
| Flash Memory | 16 MB | 16 MB | 16 MB | 32 MB | 16 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-mount | Rack-Mount 1U |
| Height | 44.45 mm | 44.45 mm | 44.45 mm | 1.75 inches | 44.45 mm |
| Manufacturer Part Number | SG300-52MP-K9 | SRW2016-K9-NA | SRW2048-K9-EU | SF302-08 | SRW2024P-K9-NA |
| Memory | 128 MB | 128 MB | 128 MB | 128 MB | 128 MB |
| Power Consumption | 873.05W | 23.3W | 45.9W | 15W | 235.1W |
| SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) | 4 SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 104 Gbps | 40 Gbps | 104 Gbps | 16 Gbps | 56 Gbps |
| Weight | 5.32 kg | 2.17 kg | 3.91 kg | 4 lbs | 4.11 kg |
| Width | 440 mm | 440 mm | 440 mm | 17.5 inches | 440 mm |
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SG300-52MP-K9 identifies a Small Business 300 Gigabit managed switch with 52 total connections, including 48 PoE+ ports and a 740W budget. SG300 names the Gigabit 300 model group, 52 represents total connections, and MP identifies the maximum-PoE variant. Keep K9 in the complete ordering identifier.
SG300-52MP-K9 supports a web UI over HTTP/HTTPS, a serial-console CLI, remote CLI over SSH or Telnet, and SNMP versions 1, 2c and 3. Full and menu-based CLI modes are available. Legacy management integrations include Cisco Small Business FindIT Network and Cisco OnPlus. Administrators can also use editable configuration files for provisioning.
SG300-52MP-K9 is discontinued: end of sale was October 4, 2018, and Cisco service ended October 31, 2023. Its direct replacement, SG350-52MP-K9-NA, is also discontinued; forward migration reaches C1300-48FP-4G. New sealed inventory and refurbishment do not reactivate Cisco support or restart the original lifecycle.
ORM Systems offers SG300-52MP-K9 new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units. Returns are available for 30 days in either condition; terms apply. Cisco's original limited lifetime hardware warranty and support ended October 31, 2023.
SG300-52MP-K9 provides a shared 740W PoE budget across 48 PoE+ ports. The available allocation must cover the combined requirements of connected endpoints, rather than assuming every powered port can operate at its individual maximum simultaneously. The four additional network connections are separate from the powered access-port count.
SG300-52MP-K9 has two dedicated Gigabit copper uplinks and two Gigabit copper/SFP combo connections. Each combo connection activates either copper or fiber, so the two sockets do not provide simultaneous connections. The uplinks are fixed, and installing an SFP does not add a removable network-module bay.
Yes, SG300-52MP-K9 supports static IPv4 routing between VLANs, with up to 512 static routes and 128 IP interfaces. The route configuration is maintained by the administrator rather than learned through dynamic routing. The interface limit also bounds the number of separately addressed routed workgroups the chassis can host.
SG300-52MP-K9 is a rack-mount 1U switch, measuring 440 mm wide, 44.45 mm high and 350 mm deep, with a 5.32 kg weight. Four fans provide active cooling. Rack planning therefore includes chassis depth, cabling clearance and ventilation rather than treating this model as a fanless desktop unit.
SG300-52MP-K9 uses an internal universal AC supply accepting 100-240V AC at 50-60 Hz. The chassis takes AC power rather than using a desktop adapter. Maximum consumption reaches 873.05W at 110V during PoE operation; this chassis-input figure is separate from the 740W allocation available to powered endpoints.
SG300-52MP-K9 provides a 740W PoE budget, whereas SG300-52P-K9 provides 375W across the same number of powered ports. Both models are discontinued. The higher-budget model suits legacy installations needing a larger aggregate endpoint allocation; the lower-budget version suits existing configurations whose combined endpoint demand fits its smaller allocation.
SG300-52MP-K9 has 48 powered access ports, whereas SG300-28MP-K9 has 24 powered access ports. Both are discontinued Small Business 300 models. The larger model serves higher-density legacy endpoint plans; the smaller model serves installations needing fewer powered connections and an existing-model spare, rather than an equivalent port-density replacement.
C1300-48FP-4G has four 1G SFP uplinks, whereas SG300-52MP-K9 has two Gigabit copper/SFP combo uplinks. C1300-48FP-4G is the current forward-migration destination. The retired SG300 model serves existing-model spare requirements; C1300-48FP-4G suits buyers specifying four fiber uplinks on the current migration model rather than retaining the shared combo arrangement.
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