Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
Added to cart times recently
Ready to Ship
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
$341.25
Quantity:
SG300-28P-K9
Cisco SG300-28P-K9 Small Business 300 24-Port Gigabit PoE+ M...
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Verified By Federal Bodies
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
SG300-28P-K9 is a Cisco Small Business 300 managed Gigabit Ethernet switch with 24 fixed copper access ports and 4 Gigabit combo uplink positions. 24 ports supply PoE+ power from a shared 180W allowance. The product belongs to the legacy Cisco Small Business range and is intended for replacement or continuity purchases where existing link types and system compatibility are already defined. Administrative operation belongs to the embedded switch configuration environment, rather than a Catalyst enterprise license tier. The precise ordering suffix and existing electrical accessories should be checked against the equipment being replaced.
SG300-28P-K9 price for new stock is is available on request. Get immediate quote. SG300-28P-K9 refurb price is $341.25.
Request bulk order quote for SG300-28P-K9 for additional pricing. Browse the full Cisco 300 Series Managed Switches series or explore all Cisco products.
56 Gbps switching capacity and 41.67 Mpps forwarding capacity apply to this exact hardware model. SG300-28P-K9 allocates power only to its 24 PoE output ports, which share the specified system budget. SFP cages require compatible transceiver modules and the correctly matched upstream link speed. The 300 Series supports managed Layer 2 operation and limited static Layer 3 routing capability in its embedded feature set. Hardware behavior should be confirmed in staging with the actual cables, endpoint ports and electrical supply. An identical-looking model from a different generation should not be assumed to have the same interface layout or lifecycle status.
SG300-28P-K9 is available in new sealed and certified refurbished condition through ORM Systems. Refurbished devices are inspected and bench-tested for power-on, POST, clean boot and Ethernet links at rated speed. For this managed model, firmware is verified and configuration is wiped to factory default. Powered ports are verified under load. Specify the exact variant and its required accessories on the purchase order. ORM offers an extended warranty of up to 3 years for new equipment and up to 1 year for certified refurbished equipment; returns are accepted for 30 days, terms apply. Purchase orders, government Net-30 and RMA with advance replacement are supported for UK, EU, US and MEA stock.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24 x 1G PoE+, 4 x 1G combo uplinks |
PoE Budget | 180W |
Lifecycle Status | Cisco retired product family |
An existing wiring area is being maintained with the same generation of Cisco network equipment. SG300-28P-K9 provides 24 Gigabit copper access connections. Cisco has retired the Small Business 300 family, so ongoing vendor service is not part of the purchase assumption. Specify the exact replacement PID, condition and existing link medium in the order.
A site is adding local wired devices and needs to check what can attach directly to SG300-28P-K9. The available 180W power allocation serves 24 PoE access connections, subject to their total demand. Review the device inventory, patch leads and required network speed before finalizing the purchase order.
A maintenance team is staging a spare Small Business 300 device before an equipment change. The managed configuration should be checked against local switch settings and the device software version. Refurbished units have their physical ports tested at rated link speed. Record the full SKU, physical installation and regional power requirements on the purchase order.
New Cisco lifecycle support coverage
SG300-28P-K9 belongs to a retired Cisco Small Business switch family. Select a currently supported Cisco Business family when continued manufacturer service and software lifecycle coverage are required.
Endpoint power beyond shared budget
SG300-28P-K9 has a 180W combined PoE allocation for 24 powered ports. Higher aggregate load requires another model with a larger documented power budget.
Native multigigabit copper downlinks
SG300-28P-K9 provides Gigabit Ethernet RJ-45 access, not 2.5G or 5G multigigabit ports. Select a currently supported multigigabit access series for higher-speed copper clients.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| SG300-28P-K9 |  SG300-28SFP |  SG300-52P-K9-UK |  SG300-28MP-K9 |  SG300-52P-K9-NA | |
|---|---|---|---|---|---|
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Form Factor | Desktop | Desktop | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Manufacturer Part Number | SG300-28P-K9 | SG300-28SFP | SG300-52P-K9-UK | SG300-28MP-K9 | SG300-52P-K9-NA |
| SFP Ports | 4 x 1GbE (Combo, shared with RJ-45) | 4 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 | 56 Gbps | 56 Gbps | 104 Gbps | 56 Gbps | 104 Gbps |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 90 days, for dependable protection on every order. The exact term is confirmed on your quote, order confirmation and invoice.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Same-day dispatch from regional hubs, free next-day delivery*, fully tracked and insured.
SG300-28P-K9 is a Cisco Small Business 300 managed Gigabit Ethernet switching product with 24 access interfaces. Its copper links attach standard Gigabit Ethernet clients. The full part number identifies the ordering variant and should not be shortened on a replacement purchase.
SG300-28P-K9 uses the embedded Small Business web-based management interface for switch configuration. Configuration and firmware should be checked when migrating an existing switch to avoid carrying unexpected settings. The administration approach is distinct from cloud-managed Cisco Meraki equipment. Confirm the physical port layout and the complete ordering part number against installed equipment before committing the purchase.
SG300-28P-K9 is part of the retired Small Business 300 product family. Cisco no longer lists this family as an actively supported switching line. Specific historical milestone dates may differ between regional ordering variants, so do not assume a service date for one suffix applies to every other PID.
SG300-28P-K9 is available new sealed or certified refurbished through ORM Systems. New equipment may receive up to a 3-year extended ORM warranty; refurbished hardware has up to a 1-year warranty. Returns are available within 30 days subject to terms. Cisco manufacturer service for the retired switch family is separate from ORM coverage.
SG300-28P-K9 has 24 Gigabit Ethernet copper access ports and 4 Gigabit uplink positions. Console or management connectors are not counted as access ports. Any combo position shares a physical connection with its paired medium and is not an independent extra data port.
SG300-28P-K9 delivers PoE+ power on 24 ports with 180W shared among powered connections. Powered network devices need an appropriate total power allocation, while data-only models require separate endpoint power. Do not interpret the number of Ethernet ports as the available PoE count.
No, SG300-28P-K9 is not part of a Cisco hardware stacking family. Administrative grouping or placement in the same equipment rack does not form a physical stack. If a deployment requires a shared stack backplane or stack member failover, the equipment specification must use a different supported switch platform.
SG300-28P-K9 supports Gigabit Ethernet on its documented access interfaces and Gigabit uplink positions. This speed does not mean every interface supports 10 Gigabit Ethernet or multigigabit copper negotiation. Specify endpoint Ethernet adapters, optics and upstream links according to the model interface layout.
SG300-28P-K9 requires compatible mains power, the correct regional adapter or input lead, and cabling that matches its actual Ethernet ports. Optical connections also require the correct SFP modules and fiber type. Confirm the exact ordering suffix before installing a spare or replacement device.
SG300-28P-K9 can maintain established network infrastructure where its fixed Gigabit access layout matches the installed environment. Cisco has retired the associated Small Business series. New projects requiring an active vendor lifecycle should evaluate a current supported Cisco Business or Catalyst family and check management, PoE and uplink requirements independently.
SG300-28P-K9 supports limited static routing within the Cisco 300 Series managed software feature set. This does not provide an enterprise dynamic routing protocol suite or a separate Network Advantage software tier. Route configuration should be verified against the intended device firmware and deployment topology before commissioning.
SG300-28P-K9 provides 4 Gigabit uplink positions in addition to its dedicated access connections. Combo positions share their matching RJ-45 and SFP physical media, so only one connection in each pair can be active. Select compatible optics and cables for the installed upstream switch before ordering accessories.
United States
