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SG300-20
Cisco SG300-20 Small Business 300 16-Port Gigabit Switch, 4x...
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SG300-20 is a fanless, managed Layer 2+ Gigabit switch for small-business networks, with 16 copper access ports, two dedicated copper uplinks and two copper/SFP combo uplinks. All connections operate at Gigabit speed, and the fixed uplink architecture has no removable network-module bay. The full-width, 1U chassis accommodates installations that need managed switching without cooling fans or endpoint power delivery. Cisco Small Business 300 switches serve data, voice and wireless networks, while this non-PoE configuration requires endpoints to have independent power. The discontinued SRW2024P-K9, sold as SG300-28P, differs by providing PoE output. For an existing installation, the 20-port Gigabit managed switch configuration retains copper connectivity while allowing the combo connections to carry fiber links instead.
SG300-20 price for new stock is is available on request. Get immediate quote. SG300-20 refurb price is $142.37.
Request bulk order quote for SG300-20 for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
40 Gbps switching capacity and 29.76 Mpps forwarding at a 64-byte packet size establish the traffic-handling limits for the installed connections. Static IPv4 routing enables communication between VLANs without introducing a dynamic routing configuration. SG300-20 has 128 MB of DRAM and 16 MB of flash, separating running memory from firmware storage. A 16384-entry MAC address table sets the address-learning ceiling for attached networks. Browser-based configuration, a full or menu-based Textview CLI and SNMP provide different administration paths, while dual firmware images support software maintenance. The 300 Series also supports text-editable configuration files and secure file transfers for staging multiple units. Copper uplinks remain limited to Gigabit speed; inserting an optical transceiver does not create a 10G connection or a modular uplink bay.
SG300-20 is offered new sealed or certified refurbished, with ORM coverage of up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units; both conditions include 30-day returns, terms apply. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot, optics bay recognition and PSU status. Specify the condition, required accessories and quantity on the PO, and order this switch against those line items. For enterprise and volume purchases, ORM Systems accepts POs, offers Net-30 for government, and provides RMA with advance replacement across UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 16 x 1G access / 2 x 1G copper / 2 x 1G combo |
Max Power Draw | 16.26W |
Cooling | Fanless |
Lifecycle Status | Cisco support ended October 31, 2023 |
Replacement PID | C1300-16T-2G |
In a 50-user small-business office deploying VoIP phones and Wi-Fi access points, the SG300-20-18 10/100/1000 ports, 2 combo mini-GBIC ports delivers hardware-based VLAN segmentation and granular QoS. Administrators carve out separate voice, data and wireless VLANs on the 18 Gigabit ports and apply traffic-prioritization rules to ensure crystal-clear voice quality while isolating guest Wi-Fi. The outcome is a simplified, secure network with deterministic performance for critical communications.
In a server-rack aggregation scenario, the SG300-20-18 10/100/1000 ports, 2 combo mini-GBIC ports serves as an edge switch connecting 16 application servers at Gigabit speeds, while the two combo mini-GBIC slots host redundant 1 Gbps fiber links to the core switch. This dual-uplink configuration provides automatic failover and load balancing, eliminating single points of failure and maximizing throughput. The benefit is a resilient, high-performance infrastructure that scales with growing compute demands.
A boutique hotel leverages the SG300-20-18 10/100/1000 ports, 2 combo mini-GBIC ports to enforce strict separation between guest Internet access and internal management systems. By assigning guest rooms and public-area access points to isolated VLANs on the 18 copper ports and connecting the property management server via a fiber mini-GBIC uplink, IT achieves end-to-end traffic isolation and centralized policy enforcement. The result is enhanced data security, regulatory compliance and simplified network operations.
When a failed unit must be replaced without changing the existing hardware identity, SRW2016-K9-NA distinguishes the ordering variant from the SG300-20 model name. Match the installed unit label and required regional hardware before issuing a spare-stock PO, then specify the replacement condition and quantity explicitly.
When an existing site moves inter-VLAN traffic onto local switching, the operating mode changes which policies remain usable. The 300 Series disables VLAN Rate Limit and QoS policers in Layer 3 system mode. Check the live policy configuration and required operating mode before specifying the replacement unit.
When several existing sites require matching replacement configurations, text-editable configuration files allow a common configuration to be prepared before installation. The 300 Series supports Secure Copy file transfer and configuration downloads. Include site-specific addressing, credentials and configuration staging requirements in the purchase specification rather than assuming one unchanged file suits every location.
Endpoint power over Ethernet
SG300-20 provides data connectivity without PoE output. Phones, access points and other powered endpoints require independent power; an order requiring switch-delivered endpoint power excludes this model.
10G uplinks to distribution
SG300-20 uplinks are limited to 1G, with no removable uplink card path. A requirement for 10G distribution connections therefore requires a different switch rather than different optics.
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| SG300-20 |  SG300-52MP |  SG300-10PP |  SG300-28MP |  SF302-08P | |
|---|---|---|---|---|---|
| Depth | 202.5 mm | 11.3 inches | 10.8 inches | 8.5 inches | 170 mm |
| Ethernet Technology | Gigabit Ethernet | 10/100/1000 | 10/100/1000 | 10/100/1000 | Fast Ethernet |
| Flash Memory | 16 MB | 256 MB | 32 MB | 64 MB | 16 MB |
| Form Factor | Rack-Mount 1U | Rack-mount | Desktop / Rack-mount | Desktop / Rack-mount | Desktop |
| Height | 44.45 mm | 1.73 inches | 1.73 inches | 1.75 inches | 44.45 mm |
| Manufacturer Part Number | SG300-20 | SG300-52MP | SG300-10PP | SG300-28MP | SF302-08P |
| Memory | 128 MB | 256 MB | 64 MB | 128 MB | 128 MB |
| SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) | 4 SFP Ports | Combo | 4 SFP Ports | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 40 Gbps | 104 Gbps | 20 Gbps | 56 Gbps | 5.6 Gbps |
| Weight | 2.17 kg | 16 lbs | 7.5 lbs | 7.7 lbs | 1.21 kg. |
| Width | 440 mm | 17.3 inches | 8.66 inches | 17 inches | 279.4 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
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dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 25 April 2021
18-port gigabit smart switch with combo mini-GBIC ports ensures stable connectivity for mid-sized networks.
Reviewed on the 10 April 2024
Professional-grade switch delivering consistent throughput and minimal latency.
Reviewed on the 27 November 2023
Easy to deploy with reliable network performance for office environments.
Reviewed on the 3 August 2025
Durable and efficient, perfect for small-to-medium office setups.
Reviewed on the 15 June 2022
Stable and dependable performance for daily networking tasks.
SG300-20 identifies a Gigabit model in the Cisco Small Business 300 family, with 20 logical Ethernet connections in total. The configuration comprises dedicated copper connections and shared copper/SFP connections. SRW2016-K9 is the corresponding ordering identifier; SRW2016-K9-NA identifies an ordering variant used for this model.
SG300-20 has 16 Gigabit copper access ports and four special-purpose connections: two copper uplinks and two copper/SFP combo uplinks. Each combo connection uses either its copper socket or its SFP cage, not both simultaneously. Specify the intended copper and fiber connections when planning the replacement order.
SG300-20 supports HTTP/HTTPS browser management, a full or menu-based Textview CLI, serial console access, SSH, Telnet and SNMP versions 1, 2c and 3. The 300 Series also supports Cisco Small Business FindIT Network and Cisco OnPlus integrations. Specify the required administration connection when staging replacement hardware.
No, SG300-20 does not supply PoE to connected devices; its Ethernet connections carry data without an endpoint power budget. Phones, cameras and wireless access points therefore need an independent power arrangement. Confirm how each endpoint receives power before specifying this non-PoE model for an existing installation.
The 300 Series supports MGBSX1 for Gigabit multimode fiber links and MGBLX1 for Gigabit single-mode fiber links. MGBSX1 supports a 300 m reach, while MGBLX1 supports 10 km. Match the transceiver, fiber type and link distance, and include the selected transceiver PID separately on the PO.
Yes, SG300-20 can route IPv4 traffic between VLANs when configured in Layer 3 system mode. Static routing is the routing method for this configuration, while Layer 2 is the default operating mode. Review the addressing plan and required inter-VLAN policies before staging a replacement managed switch.
No, SG300-20 uses an internal universal AC power supply with a 100-240V AC input rather than an external desktop adapter. The original package includes a power cord. Specify the required regional power cord and verify its inclusion when placing an order for new sealed or certified refurbished hardware.
SG300-20 is a full-width, 1U rack-mount switch with a 440 mm-wide chassis and 44.45 mm height. The original package includes mounting hardware. For a replacement order, specify whether mounting hardware must be included so the delivered unit matches the planned rack installation and available mounting position.
Yes, the SG300-20 20-port Gigabit managed switch uses fanless cooling and has no cooling fans to include on a maintenance parts list. Installation still requires an environment within its operating temperature range. Check enclosure ventilation and ambient conditions before specifying the unit for an enclosed rack location.
SG300-20 is discontinued: end of sale was October 4, 2018, and Cisco support ended October 31, 2023. Its direct replacement, SG350-20-K9-NA, was also discontinued. The later migration chain passes through discontinued CBS350-16T-2G-NA to C1300-16T-2G. Distinguish an exact legacy replacement order from a hardware migration order.
SG300-20 is available new sealed with up to a 3-year extended ORM warranty or certified refurbished with up to 1 year of ORM coverage. Both conditions include 30-day returns, terms apply. Cisco's original limited lifetime warranty and support ended October 31, 2023; ORM coverage is separate.
SRW2024P-K9, sold as SG300-28P, supplies PoE through 24 powered ports with a 180W budget, whereas SG300-20 supplies no endpoint power. Both models are discontinued. For legacy replacement requirements, distinguish installations with independently powered endpoints from installations that require power delivery over their Ethernet connections.
SRW2024-K9, sold as SG300-28, has 26 dedicated Gigabit copper connections where SG300-20 has 18, excluding their combo connections. Both models are discontinued. The smaller configuration addresses legacy installations with fewer copper connections; the larger configuration addresses existing installations whose replacement requirement includes the additional copper connection density.
C1300-16T-2G provides two dedicated 1G SFP uplinks, whereas SG300-20 uses two SFP connections shared with copper combo sockets. C1300-16T-2G is the later migration option in the replacement chain. SG300-20 addresses exact legacy replacement requirements; C1300-16T-2G addresses migration requirements with separate fiber uplinks.
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