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SF300-48-K9-NA
Cisco SF300-48-K9-NA Small Business 300 48-Port Fast Etherne...
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SF300-48-K9-NA is a Cisco Small Business 300 managed access switch with 48 fixed 10/100 copper ports, plus two dedicated Gigabit copper and two copper/SFP combo 1G uplinks. The full-width 1U enclosure fits a small business access rack with an internal AC supply. Each combo position accepts a copper or fiber connection, with only one side active at a time. Static inter-VLAN routing gives the platform a Layer 2+ role without an enterprise license tier. The SF300-48 configuration serves existing Fast Ethernet wiring while allowing a Gigabit distribution handoff. Endpoint power must come from another device or supply. The fixed uplink layout requires no network module purchase.
SF300-48-K9-NA price is is available on request. Get immediate quote.
Request bulk order quote for SF300-48-K9-NA for additional pricing. Browse the full Cisco SF300 Switches series or explore all Cisco products.
17.6 Gbps switching capacity is the model's published fabric figure, and 13.1 Mpps forwarding measures its small-packet rate. SF300-48-K9-NA has 128 MB of CPU memory, 16 MB of flash, and an aggregate packet buffer shared across active ports. The web interface, SSH or Telnet CLI, SNMP, VLAN configuration, STP/RSTP/MSTP, and LACP support day-to-day managed operation. Static IPv4 routing can connect configured VLANs; dynamic enterprise routing protocols are outside this platform role. Both copper/SFP combo uplinks accept documented MGBSX1 or MGBLX1 1G optics, with each optical interface sharing a logical position with its paired copper port. Fanless cooling removes a mechanical fan from the chassis. An internal universal AC supply powers the unit. Hardware stacking and a redundant internal supply bay are absent. Confirm that the Rack-Mount 1U installation has enough clearance for the chassis and that the local power connection matches Internal AC PSU.
ORM Systems offers SF300-48-K9-NA new sealed or certified refurbished and accepts purchase orders for either condition. Certified refurbished managed units are inspected and bench-tested, firmware verified, and wiped to factory default; every port is checked for a link at rated speed. SFP bay recognition is checked for the two combo positions. Confirm the Cisco ordering PID SRW248G4-K9-NA, regional power connection, and any required MGBSX1 or MGBLX1 optics before releasing the PO. New stock has up to a 3-year extended ORM warranty, refurbished stock up to 1 year, and every condition has 30-day returns subject to terms. Volume orders may use PO acceptance, Net-30 for government, UK/EU/US/MEA stock, and RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 100M, 4 x 1G uplinks |
Max Power Draw | 24.8W |
Cooling | Fanless |
Lifecycle Status | Cisco retired product |
A site maintains 48 Fast Ethernet endpoint links and needs a compatible managed switch for an existing Small Business 300 configuration. SF300-48-K9-NA provides two dedicated Gigabit copper and two copper/SFP combo uplinks without a removable network module. Record the port plan, saved VLAN configuration, regional power connection, and chassis label before the purchase order.
A distribution handoff changes to fiber while the existing 48 copper access connections stay in service. SF300-48-K9-NA offers two 1G copper/SFP combo positions; each SFP excludes its paired RJ-45 connection. Specify MGBSX1 for multimode or MGBLX1 for single-mode fiber and record the cable type before the PO.
A multi-site small business keeps a spare for SF300-48 deployments after the 300 Series retirement. SF300-48-K9-NA uses the Cisco order number SRW248G4-K9-NA for NA region. Confirm the chassis label, boot state, matching configuration, mounting hardware, and required power connection before the purchase order is released.
Ten gigabit distribution uplinks
SF300-48 has 1G copper/SFP uplinks and no built-in 10G port. Choose a currently supported switch with documented 10G uplinks when the distribution requirement is 10G.
Hardware stack as one chassis
SF300-48 has no dedicated hardware stacking capability. Specify a currently supported stackable switch where a single control plane across multiple chassis is required.
Active Cisco service coverage
Cisco places the Small Business 300 family among retired switches. Select a currently supported Cisco platform when vendor maintenance or security updates are mandatory.
Gigabit speed at access ports
The 48 fixed access ports operate at 10/100, while the uplinks are 1G. Select a current Gigabit access switch if endpoints require 1G.
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| SF300-48-K9-NA |  SF302-08MPP |  SF302-08MPP-K9-EU |  SRW248G4-K9-NA |  SF300-24P-K9-UK | |
|---|---|---|---|---|---|
| Depth | 257 mm | 170 mm | 170 mm | 257 mm | 257 mm |
| Ethernet Technology | Fast Ethernet | Fast Ethernet | Fast Ethernet | Fast Ethernet | Fast Ethernet |
| Form Factor | Rack-Mount 1U | Desktop | Desktop | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44.45 mm | 44.45 mm | 44 mm | 44.45 mm | 44.45 mm |
| Manufacturer Part Number | SF300-48-K9-NA | SF302-08MPP | SF302-08MPP-K9-EU | SRW248G4-K9-NA | SF300-24P-K9-UK |
| 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) | 2 x 1GbE (Combo, shared with RJ-45) | 2 x 1GbE (Combo, shared with RJ-45) |
| Switching Capacity | 17.6 Gbps | 5.6 Gbps | 5.6 Gbps | 17.6 Gbps | 12.8 Gbps |
| Weight | 3.39 kg | 1.18 kg | 1.18 kg | 3.39 kg | 3.73 kg |
| Width | 440 mm | 279.4 mm | 279 mm | 440 mm | 440 mm |
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SF300-48-K9-NA identifies the Cisco SF300-48 managed Fast Ethernet switch with 48 copper access ports. Cisco's regional ordering PID is SRW248G4-K9-NA; the catalog model spelling and ordering PID should be matched before purchase. The NA regional form concerns the sales and power connection, not a different Ethernet port layout.
SF300-48-K9-NA uses the Small Business 300 web user interface and command-line access over SSH or Telnet. SNMP monitoring, VLAN settings, and saved configurations are available on the managed platform. Keep a backup of the installed configuration and verify the software image before introducing a replacement unit.
SF300-48-K9-NA belongs to Cisco's retired Small Business 300 switch family. Cisco no longer supports products in that retired category. An installed unit can remain a replacement target, but purchasing should account for firmware availability, a tested spare, and an independent RMA path rather than assuming new Cisco service.
SF300-48-K9-NA is available from ORM Systems new sealed or certified refurbished. ORM Systems offers new sealed stock with up to a 3-year extended warranty or certified refurbished stock with up to 1 year; both carry 30-day returns subject to terms. Cisco lists the 300 Series as retired, so Cisco service and the original limited lifetime hardware coverage have ended.
SF300-48-K9-NA does not provide PoE on its 48 access ports. Phones, cameras, or wireless access points attached to it need a separate power source. The two copper/SFP combo uplinks and any dedicated Gigabit uplinks carry network traffic only; they do not add powered endpoint ports.
SF300-48-K9-NA has two 1G RJ-45/SFP combo positions. Each logical uplink can operate over copper or an installed SFP optic, with the unused medium inactive. MGBSX1 is a supported multimode option and MGBLX1 is a supported single-mode option; select fiber type and optics before ordering.
SF300-48-K9-NA supports static routing between VLANs as a Layer 2+ Small Business 300 switch. It does not require a Catalyst Network Essentials or Network Advantage license tier. Define the gateway interfaces and upstream route plan when moving a configuration from another switch, rather than treating management access as routing.
SF300-48-K9-NA cannot join a true hardware stack because the 300 Series model has no dedicated stack facility. Its uplink ports are ordinary Ethernet interfaces, and managing multiple units does not create one stack control plane. Record a separate configuration, power feed, and spare-unit plan for each chassis.
SF300-48-K9-NA supplies 48 fixed Fast Ethernet access ports and 4 logical 1G uplink positions. Access ports stop at 100 Mbps even though the uplinks reach 1G. No 10G uplink is built in. Match endpoints and distribution links to those published speed classes before purchase.
SF300-48-K9-NA uses an internal AC supply with a 100–240V AC input. The published 24.8W worst-case draw applies to the unpowered switch. There is no second internal hot-swappable PSU bay. Verify the included regional connection and available electrical capacity at the installation location.
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