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C9300-48UN-A
Cisco C9300-48UN-A Catalyst 9300 48-Port Multigigabit PoE++...
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C9300-48UN-A provides 48 multigigabit access ports that negotiate 100 Mbps, 1 Gbps, 2.5 Gbps or 5 Gbps, with Cisco UPOE for powered endpoints. This managed Layer 3 enterprise access switch belongs to the Catalyst 9300 series and uses a 1U rack-mount chassis. Network Advantage is the included perpetual network tier for advanced routing requirements. An empty modular uplink bay separates the base hardware from the selected uplink configuration, so the access-port specification does not imply installed fiber connections. Wireless access points, virtual desktop terminals and building-management gateways are among the supported endpoint categories. C9300-48UXM-A provides a lower shared PoE budget with its standard PWR-C1-1100WAC-P supply, a distinction to retain when comparing otherwise similar access configurations.
C9300-48UN-A price for new stock is $3,144.75, a 79.5% saving from the Cisco list price of $15,338.00. C9300-48UN-A refurb price is $1,102.50. C9300-48UN-A is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for C9300-48UN-A for additional pricing. Browse the full Cisco 9300 Catalyst Switches series or explore all Cisco products.
640 Gbps switching capacity establishes the standalone switching limit, increasing to 1120 Gbps with stacking. 476.19 Mpps forwarding supports packet processing independently of the bandwidth figure. A 32 MB packet buffer holds queued traffic during bursts, while 32000 IPv4 entries comprise 24000 direct and 8000 indirect routes. OSPF, EIGRP, BGPv4 and IS-ISv4 provide advanced unicast routing, with OSPFv3 and BGPv6 extending routing to IPv6. 645W of shared PoE power is available with PWR-C1-1100WAC-P; a second PWR-C1-1100WAC-P raises the allocation to 1745W without enabling maximum output on every powered port simultaneously. C9300-48UN-A combines 8 GB DRAM and 16 GB flash for Cisco IOS XE operation and image storage. This Catalyst 9000 family member uses UADP 2.0 forwarding silicon. 875.1W input draw was measured at 115V AC with C9300-NM-8X and full PoE loading without traffic, so power planning must retain that configuration context. Hardware-based IPsec is absent.
ORM Systems offers C9300-48UN-A new sealed or certified refurbished; select the condition and confirm the complete bill of materials before placing the order. Certified refurbished units are inspected and bench-tested for power-on, POST, clean boot, every port linking at rated speed and PoE output under load on every powered port, with firmware verified and configurations wiped to factory default. New units carry up to a 3-year extended ORM warranty and certified refurbished units up to 1 year, with 30-day returns on every condition; terms apply. Submit enterprise or volume requirements with the PO: ORM accepts POs, provides Net-30 for government and offers RMA with advance replacement, with regional stock/RMA in the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS XE |
License Tier | Network Advantage |
Port Configuration | 48 x 5G Cisco UPOE / modular uplink bay |
PoE Budget | 645W single / 1745W with two PWR-C1-1100WAC-P supplies |
Stacking | StackWise-480 / 8 members / 480 Gbps |
Max Power Draw | 875.1W at 115V AC with C9300-NM-8X, full PoE loading |
In a 20,000-student university campus, the Catalyst 9300 (C9300-48UN-A) delivers 48 PoE++ multigigabit ports at 5 Gbps to backhaul Wi-Fi 6 access points. Leveraging Network Advantage features—advanced QoS, policy-based segmentation and StackPower—the network achieves 40% higher throughput, centralized management and seamless connectivity for thousands of concurrent users.
A national retailer builds in-store micro-data centers to support POS systems, digital signage and inventory scanners. The Catalyst 9300 (C9300-48UN-A) provides 48 PoE++ ports at 5 Gbps, enabling secure segmentation via Cisco SD-Access and advanced routing. Outcome: 30% reduced transaction latency, unified policy enforcement and enhanced in-store operations.
A regional hospital accelerates MRI and CT image transfers using the Catalyst 9300 (C9300-48UN-A), offering 48 ports of 5 Gbps multigigabit connectivity and Cisco DNA Center telemetry. Benefit: 50% faster PACS data retrieval, real-time network assurance and HIPAA-compliant segmentation for critical patient data.
When a powered-endpoint rollout assigns the maximum 60W to every access connection, 48 x 60W creates a 2880W aggregate requirement. Treat the supply combination as a separate sizing decision rather than assuming every powered port can draw its individual maximum simultaneously. Specify endpoint allocations and the required supply configuration before issuing the PO.
When a campus design moves inter-VLAN gateways into access closets, the limit of 1000 switched virtual interfaces becomes a configuration checkpoint distinct from route-table capacity. Inventory the required gateways and routed connections before choosing a standard configuration. Include the intended routing design and interface requirements with the purchase specification.
When existing closets share power between switches, a StackPower group has a different member limit from the data stack: four switches without an external power-sharing appliance. CAB-SPWR-30CM= and CAB-SPWR-150CM= provide the power interconnects. Check group membership, cable reach and the required power-sharing arrangement before ordering an additional unit.
10G on every access port
The fixed access ports stop at 5G. C9300-24UX-A provides 10G multigigabit access, but reduces the copper access-port count from 48 to 24.
90W power for individual endpoints
Each powered port is limited to 60W Cisco UPOE. C9300X-48HX-A provides 90W UPOE+ capability and also changes the access speed to 10G multigigabit.
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| C9300-48UN-A |  C9300L-24-E-A |  C9300L-48UXG-4X-A |  C9300L-48T-4X-E |  C9300L-48PF-4G-10A | |
|---|---|---|---|---|---|
| Depth | 564 mm | 11 inches | 488 mm | 449 mm | 17.3 inches |
| Ethernet Technology | Multi-Gigabit (2.5G/5G) | 10/100/1000 | Multi-Gigabit (2.5G/5G) | Gigabit Ethernet | 10/100/1000 |
| Flash Memory | 16 GB | 4 GB | 16 GB | 16 GB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-mount | Rack-Mount 1U | Rack-Mount 1U | Rack-mount |
| Height | 44 mm | 1.73 inches | 44 mm | 44 mm | 1.75 inches |
| Manufacturer Part Number | C9300-48UN-A | C9300L-24-E-A | C9300L-48UXG-4X-A | C9300L-48T-4X-E | C9300L-48PF-4G-10A |
| Memory | 8 GB | 4 GB | 8 GB | 8 GB | 4 GB |
| Switching Capacity | 640 Gbps | 128 Gbps | 392 Gbps | 176 Gbps | 176 Gbps |
| Weight | 9.09 kg | 20 lbs | 7.65 kg. | 7 kg. | 27 lbs |
| Width | 445 mm | 17.5 inches | 445 mm | 445 mm | 17.5 inches |
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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.
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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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Reviewed on the 7 October 2021
Stable under heavy load.
Reviewed on the 11 November 2023
Excellent campus access option.
Reviewed on the 17 January 2026
UPOE support powers demanding endpoints reliably.
Reviewed on the 8 July 2024
High performance access switch.
Reviewed on the 17 July 2017
Advanced features are useful.
C9300-48UN-A identifies a Catalyst 9300 configuration: C9300 is the series, 48 is the copper access-port count, UN marks the 5G Cisco UPOE configuration, and A selects Network Advantage. The model uses modular uplinks rather than a fixed uplink-speed code within the part number.
Catalyst 9300 switches support local console or SSH CLI, embedded WebUI, Cisco Catalyst Center and Meraki dashboard management. NETCONF, RESTCONF and gNMI provide programmable interfaces. Dashboard configurations can remain device-sourced or become cloud-sourced, depending on the selected operating mode, software release and entitlement.
C9300-48UN-A provides a shared 645W PoE budget with one PWR-C1-1100WAC-P, increasing to 1745W with two PWR-C1-1100WAC-P supplies. Individual Cisco UPOE ports support 60W, but the aggregate budget prevents every powered port from drawing that maximum simultaneously with either of these supply configurations.
C9300-48UN-A accepts C9300-NM-4G, C9300-NM-4M, C9300-NM-8X, C9300-NM-2Y and C9300-NM-2Q. These provide 1G fiber, multigigabit copper, 10G fiber, 25G fiber or 40G fiber uplink options respectively. The chassis has no fixed uplink ports; confirm the selected module and compatible optics as separate configuration items before ordering.
StackWise-480 stacks eight Catalyst 9300 members with 480 Gbps stacking bandwidth. Compatible members must use the same license level. STACK-T1-50CM, STACK-T1-1M and STACK-T1-3M provide cable-length options. Fixed-uplink Catalyst 9300L models and higher-scale Catalyst 9300 models cannot join the standard Catalyst 9300 data stack.
C9300-48UN-A includes Network Advantage routing with full OSPF, EIGRP, BGPv4 and IS-ISv4, plus OSPFv3 and BGPv6 for IPv6. The IPv4 capacity is 32000 entries, comprising 24000 direct and 8000 indirect routes. PIM sparse mode and source-specific multicast support multicast routing requirements.
No, C9300-48UN-A has one PWR-C1-1100WAC-P in its base configuration and an optional second internal power-supply bay. Dual-supply operation requires an additional PWR-C1-1100WAC-P. Confirm the configured quantity on the order, because an available second bay does not establish that a second supply is included.
Yes, C9300-48UN-A is a 1U rack-mount switch measuring 44 mm high and 445 mm wide. Depth reaches 564 mm with PWR-C1-1100WAC-P installed, compared with 485 mm for the chassis alone. Check cabinet clearance against the installed configuration rather than the chassis-only depth.
C9300-48UN-A includes perpetual Network Advantage, with subscription selection required on new orders. Cisco DNA Advantage and Cisco Catalyst Advantage start at three years. Cisco Networking Subscription offers Cisco Switching Essentials or Cisco Switching Advantage with a 36-month minimum. Assign purchased entitlements to the organization's Smart Account before deployment.
Yes, supported Catalyst 9300 switches, including the C9300-48UN hardware configuration, can migrate to Meraki management. Meraki Enterprise and Advanced subscriptions offer terms starting at one year. This is a separate licensing and management choice, not a Meraki subscription included with the Network Advantage hardware configuration.
Cisco has not announced an end-of-sale date for Catalyst 9300. C9300-48UN-A uses the Network Advantage configuration, so license and software-release lifecycle milestones should not be mistaken for a hardware retirement date. A purchase review should distinguish hardware support eligibility from the duration of separately ordered software subscriptions.
ORM Systems offers C9300-48UN-A new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco's separate Enhanced Limited Lifetime hardware warranty covers the original owner, subject to Cisco eligibility and lifecycle limits.
C9300-48UN-A provides 645W of shared PoE power with PWR-C1-1100WAC-P, while C9300-48UXM-A provides 490W with PWR-C1-1100WAC-P. Both support Cisco UPOE. The first model addresses a larger endpoint-power allocation from one supply; the second remains an option when the planned allocation fits its lower shared budget.
C9300-48UN-A includes Network Advantage, while C9300-48UN-E includes Network Essentials. Network Advantage supports full OSPF, EIGRP, BGP and IS-IS; Network Essentials limits OSPF to 1000 routes. The Essentials model suits routed access within that limit, while the Advantage model addresses requirements for the additional routing protocols and scale.
C9300-48UN-A has 48 copper access ports, while C9300-24UX-A has 24. Both configurations offer modular uplinks, Cisco UPOE and Network Advantage. The higher-density model serves purchase requirements above 24 access connections; the 24-port model suits orders that do not require a full 48-port faceplate.
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