C9300-48UN-A – 48x 5G Multigigabit UPOE Ports – Modular Uplink – 645W PoE Budget
Cisco C9300-48UN-A Compatible Accessories, Modules & Spare Parts
Find compatible network modules, power supplies, fans, optics, cables and spare parts for the Cisco C9300-48UN-A. These accessories support fiber connectivity, hardware replacement, spare inventory and network maintenance projects.-
SFP-10G-SR-S
10GBASE-SR SFP+ - S-Class - 400m OM4 MMFOriginal price was: $1,870.01.$52.00Current price is: $52.00. Condition: New Factory Sealed -
SFP-10G-SR
10GBASE-SR SFP+ - 850nm MMF - 400m OM4Original price was: $2,658.11.$71.68Current price is: $71.68. Condition: New Factory Sealed -
SFP-10G-LR-S
10GBASE-LR SFP+ - S-Class - 10km SMFOriginal price was: $5,342.92.$150.00Current price is: $150.00. Condition: New Factory Sealed -
SFP-10G-LR
10GBASE-LR SFP+ - 1310nm SMF - 10km ReachOriginal price was: $10,672.47.$170.00Current price is: $170.00. Condition: New Factory Sealed -
SFP-25G-SR-S
25GBASE-SR SFP28 - 850nm MMF - 100m OM4Original price was: $2,658.11.$310.00Current price is: $310.00. Condition: New Factory Sealed -
SFP-10/25G-LR-S
10/25GBASE-LR SFP28 - 1310nm 10km SMF TransceiverOriginal price was: $5,877.20.$431.00Current price is: $431.00. Condition: New Factory Sealed -
QSFP-40G-SR4
40G SR4 QSFP - MPO-12 MMF - 4x10G BreakoutOriginal price was: $8,001.01.$173.00Current price is: $173.00. Condition: New Factory Sealed -
GLC-LH-SMD
1000BASE-LX/LH SFP - 10km SMF / 550m MMF - DOMOriginal price was: $2,658.11.$95.80Current price is: $95.80. Condition: New Factory Sealed -
GLC-TE
1000BASE-T SFP - RJ-45 Cat5 Copper - 100m ReachOriginal price was: $1,202.16.$70.00Current price is: $70.00. Condition: New Factory Sealed -
GLC-SX-MMD
1000BASE-SX SFP - MMF 850nm - DOMOriginal price was: $1,335.73.$57.00Current price is: $57.00. Condition: New Factory Sealed
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C9300-NM-2Y
2x25G/10G/1G SFP28 Ports - Catalyst 9300 ModuleOriginal price was: $4,963.08.$1,122.00Current price is: $1,122.00. Condition: New Factory Sealed -
C9300-NM-2Q
2x40G QSFP+ Uplinks - Catalyst 9300 ModuleOriginal price was: $4,941.76.$800.00Current price is: $800.00. Condition: New Factory Sealed -
C9300-NM-4G
4x1GE SFP Ports - Catalyst 9300 ModuleOriginal price was: $1,046.49.$231.00Current price is: $231.00. Condition: New Factory Sealed -
C9300-NM-4M
4x10G/mGig Copper Ports - Catalyst 9300 ModuleOriginal price was: $2,906.92.$626.00Current price is: $626.00. Condition: New Factory Sealed -
C9300-NM-8X
8x10G/1G SFP+ Uplinks - Network Module - Catalyst 9300Original price was: $4,941.76.$761.00Current price is: $761.00. Condition: New Factory Sealed
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PWR-C1-1100WAC-P
1100W AC PSU - Catalyst 9300 C1 - Platinum RatedOriginal price was: $2,317.88.$689.00Current price is: $689.00. Condition: New Factory Sealed -
PWR-C1-1900WAC-P
1900W AC PSU - Catalyst 9300 C1 - Platinum RatedOriginal price was: $12,784.00.$1,598.00Current price is: $1,598.00. Condition: New Factory Sealed
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C9300-48UN-A Description
The C9300-48UN-A is a Cisco Catalyst 9300 Series access switch that gives all 48 copper ports full 5G Multigigabit reach (5G/2.5G/1G/100M) over Cisco UPOE, built on the same modular-uplink chassis family as the rest of the Catalyst 9300 line. It ships with Network Advantage, adding unlimited-scale OSPF routing, VRF/VXLAN network segmentation, and MACsec-256 on top of the Layer 2 and bounded Layer 3 feature set carried by the Network Essentials variant. The default single PWR-C1-1100WAC-P supply delivers a 645W PoE budget across the 48 UPOE ports, and the modular uplink slot accepts a field-installable network module such as the C9300-NM-8X to raise uplink speed without a chassis swap. StackWise-480 stacking links up to eight units together with StackPower support for shared power headroom across the stack. This uniform 5G Multigigabit port layout suits access closets that need every drop capable of Multigigabit speeds, rather than a design where only a subset of ports needs to exceed 1G.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9300-48UN-A |
|
Port Layout |
48x 5G Multigigabit (5G/2.5G/1G/100M) UPOE copper |
|
PoE Type |
Cisco UPOE |
|
Default PoE Budget |
645W (single PWR-C1-1100WAC-P supply) |
|
Uplinks |
Modular uplink network module slot |
|
Network License |
Network Advantage |
|
Switching Capacity |
640 Gbps standalone, 1120 Gbps stacked |
|
Forwarding Rate |
476.19 Mpps standalone, 833.33 Mpps stacked |
|
Stacking |
StackWise-480, up to 8 members, StackPower supported |
|
Default Power Supply |
PWR-C1-1100WAC-P (1100W AC) |
|
Minimum Software Release |
Cisco IOS XE Release 16.5.1a or later |
Product Performance
Key Features
Every one of the 48 copper ports reaches 5G Multigigabit speed, so a full wiring closet of Wi-Fi 6E access points or high-draw endpoints can be provisioned without segregating faster and slower port groups on the same chassis.
The default PWR-C1-1100WAC-P supply delivers a 645W PoE budget out of the box, covering a working set of Cisco UPOE endpoints before a second supply or a 1900W upgrade needs to be planned.
Up to eight units stack over StackWise-480 at 480 Gbps per member, and StackPower lets stack members share power headroom, which can extend usable PoE budget across the stack rather than per switch.
Network Advantage on this hardware unlocks unlimited-scale OSPF, VRF and VXLAN segmentation, and MACsec-256, entitlements the same chassis cannot reach under Network Essentials regardless of port speed or PoE configuration.
The modular uplink slot accepts a field-replaceable network module such as the C9300-NM-8X, so uplink speed can move from 1G/10G to 25G or 40G later without replacing the switch chassis.
Each chassis carries a passive UHF RFID tag (860-960 MHz, GS1 EPC Global Gen2 / ISO 18000-6C), so an IT asset-management team can scan and reconcile switch inventory during a physical audit without relying on barcode labels or manual serial-number lookups.
Application Scenarios
Deployed in a wiring closet where every access port needs to support 5G Multigigabit-capable endpoints, such as Wi-Fi 6E access points or high-bandwidth desktop connections, without mixing in lower-rate copper ports.
Used where access points, IP phones, or IoT devices require Cisco UPOE power delivery beyond standard PoE+ limits, drawing on the 645W default PoE budget from a single power supply.
Installed as part of a StackWise-480 stack where StackPower lets several C9300-48UN-A units in the same row share power redundancy instead of each unit carrying its own second supply.
Product Comparison
|
Parameter |
C9300-48UN-A | ||
|---|---|---|---|
|
Port Layout |
48x 5G Multigigabit (5G/2.5G/1G/100M) |
36x 100M/1G/2.5G + 12x Multigigabit (10G/5G/2.5G/1G/100M) |
24x Multigigabit (10G/5G/2.5G/1G/100M) |
|
PoE Type |
Cisco UPOE |
Cisco UPOE |
Cisco UPOE |
|
Default Power Supply |
PWR-C1-1100WAC-P |
PWR-C1-1100WAC-P |
PWR-C1-1100WAC-P |
|
Default PoE Budget |
645W |
490W |
560W |
|
Switching Capacity |
640 Gbps |
580 Gbps |
640 Gbps |
|
Forwarding Rate |
476.19 Mpps |
431.54 Mpps |
476.19 Mpps |
|
Uplinks |
Modular uplink |
Modular uplink |
Modular uplink |
|
Network License |
Network Advantage |
Network Advantage |
Network Advantage |
|
Weight |
20.05 lb (9.09 kg) |
20.50 lb (9.34 kg) |
18.18 lb (8.25 kg) |
- The C9300-48UN-A and C9300-48UXM-A both pack 48 UPOE-capable copper ports on the same modular-uplink chassis family, but the port mix and PoE budget separate them: the C9300-48UN-A gives all 48 ports uniform 5G Multigigabit reach with a 645W default PoE budget, while the C9300-48UXM-A splits its 48 ports into 36 lower-rate copper ports and 12 Multigigabit ports up to 10G with a smaller 490W default PoE budget. A design that needs every access port capable of 5G Multigigabit speed and a higher default PoE ceiling fits the C9300-48UN-A, while a design where only a subset of ports needs 10G Multigigabit and the rest can run at 2.5G or below can move to the C9300-48UXM-A instead.
- Against the C9300-24UX-A, port count is the first filter: the C9300-48UN-A doubles the port density to 48 total ports while keeping the same modular-uplink, UPOE, Network Advantage combination, but its per-port Multigigabit ceiling tops out at 5G rather than the 10G ceiling the C9300-24UX-A reaches on half the ports. A closet that needs more physical Multigigabit drops on one chassis fits the C9300-48UN-A, while one that needs a smaller number of ports capable of the full 10G Multigigabit rate fits the C9300-24UX-A instead.
- Across all three SKUs, Network Advantage licensing and the PWR-C1-1100WAC-P default power supply are identical, so the decision comes down to port count, per-port speed ceiling, and default PoE budget rather than license tier or power hardware.
Selection Guide
1. Uniform 5G Access Versus Mixed-Rate Or Higher-Rate Ports
The C9300-48UN-A gives all 48 ports the same 5G Multigigabit ceiling; a design that needs a smaller group of ports reaching a full 10G Multigigabit ceiling should size the C9300-24UX-A instead, and a design where only 12 of 48 ports need Multigigabit while the rest run at 2.5G or below fits the C9300-48UXM-A better than assuming uniform 5G coverage is required everywhere.
2. Advantage Entitlements Versus The Network Essentials Downgrade Path
This SKU carries Network Advantage, unlocking unlimited-scale OSPF, VRF/VXLAN segmentation, and MACsec-256; a pure Layer 2 access role that never needs these entitlements can move to the C9300-48UN-E variant on identical hardware to reduce the software subscription tier.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
PoE standard |
Cisco UPOE, 60W maximum per port |
|
Default power supply |
PWR-C1-1100WAC-P (1100W AC) |
|
Default PoE budget |
645W with the single default supply (Cisco datasheet Table 4 value; hardware installation guide shows conflicting 610W and 490W figures for this chassis, treat 645W as authoritative) |
|
Maximum PoE budget |
Up to 995W with an added 1900W second supply; upgrading the primary supply to 1900W raises the budget to 1360W-2545W depending on secondary supply choice |
|
Second supply requirement |
Confirm endpoint power draw against the 645W default budget before assuming a second supply is unnecessary |
|
StackPower option |
Available on StackWise-480 stacks to share power headroom across member switches |
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
PoE budget versus endpoint load |
Add up the planned UPOE endpoint power draw against the 645W default budget, using the datasheet-confirmed figure rather than the conflicting hardware installation guide values. |
Sizing against the wrong published PoE figure can leave ports unable to power all connected devices. |
|
Network module compatibility |
Confirm any added uplink module, such as C9300-NM-8X, is on the C9300 (non-X) compatibility list. |
C9300X network modules are not interchangeable with C9300 modular-uplink chassis. |
|
License and subscription pairing |
Confirm the Cisco Catalyst or Cisco DNA subscription PID, such as C9300-DNA-A-48 or C9300-DNX-A-48, matches the Network Advantage tier and term. |
A mismatched subscription tier or term can block feature activation even though the hardware license is correct. |
|
Smart Account assignment |
Confirm the target Smart Account and Virtual Account before the order is placed. |
Catalyst 9300 SKUs are Smart Licensing-only, and a misassigned license can stall activation. |
|
Second power supply slot |
Confirm whether a second PWR-C1 supply is needed for redundancy or extended PoE budget. |
The second bay ships with a blank module, and the design must account for the correct supply model if added later. |
Optional Add-ons
|
Model |
Description |
|---|---|
|
C9300-NM-4G / C9300-NM-4M / C9300-NM-8X / C9300-NM-2Q / C9300-NM-2Y |
Field-installable Catalyst 9300 uplink network modules confirmed for the C9300-48UN modular uplink bay. |
|
Cisco-confirmed second AC power supply option for the C9300-48UN power bay, the documented upgrade path from the default PWR-C1-1100WAC-P for extended PoE headroom. | |
|
StackWise-480 data stacking cables (0.5 m / 1 m / 3 m) for stacking additional C9300-48UN or other C9300 units. | |
|
FAN-T2= |
Field-replaceable fan module spare for the standard three-fan N+1 redundant fan tray. |
C9300-48UN-A Switch Rear Panel
The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.
Components Delivered in the Shipping Box
The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9300-48UN-A | Network License | Network Advantage |
| Port Layout | 48x 5G Multigigabit (5G/2.5G/1G/100M) UPOE copper | PoE Type | Cisco UPOE, 60W maximum per port |
| Default Power Supply | PWR-C1-1100WAC-P (1100W AC) | Default PoE Budget | 645W with single default supply (Cisco datasheet Table 4) |
| Maximum PoE Budget | Up to 995W with added 1900W second supply; 1360W-2545W after primary supply upgrade to 1900W | Power Supply Bays | 2 internal bays, dual redundant supported, ships with 1 supply and a blank module |
| Switching Capacity | 640 Gbps standalone, 1120 Gbps stacked | Forwarding Rate | 476.19 Mpps standalone, 833.33 Mpps stacked |
| MAC Address Table | 32,000 entries | VLAN IDs | 4094 |
| IPv4 Routes | 32,000 (24,000 direct + 8,000 indirect) | IPv6 Routes | 16,000 |
| SVI Total | 1000 | Jumbo Frame | 9198 bytes |
| Stacking | StackWise-480, up to 8 members | StackPower | Supported for shared power redundancy across stack members |
| Uplinks | Modular uplink network module slot (no module included by default) | Compatible Network Modules | C9300-NM-4G, C9300-NM-4M, C9300-NM-8X, C9300-NM-2Q, C9300-NM-2Y |
| Management Interfaces | 10/100/1000 Ethernet management port, RJ-45 console port, USB mini-Type B console port | Copper Port Connectors | RJ-45, 4-pair Cat 5E UTP (1000BASE-T) or Cat 5E/6/6A UTP (Multigigabit-T) |
| Fan Modules | 3 field-replaceable fans, N+1 redundant, FAN-T2= spare, MTBF 4,521,330 hours | MTBF (Chassis) | 198,647 hours |
| Peak Power Draw (100% PoE, with C9300-NM-8X) | 875.1W at 115Vac (standard and Platinum supply tests consistent) | Minimum Software Release | Cisco IOS XE Release 16.5.1a or later |
| Operating Temperature | -5 to 45 degC at or below 1500 m; up to 40 degC at 3000 m | Storage Temperature | -40 to 70 degC |
| Relative Humidity | 5 percent to 90 percent, non-condensing | Operating Altitude | Up to 10,000 ft (3000 m) at up to 45 degC |
| Acoustic Noise | 45 dB LpA typical / 48 dB LpA max with 24 PoE+ ports at full load, AC power (family-level measurement) | Physical Dimensions | 1.73 x 17.5 x 19.1 in chassis only; 1.73 x 17.5 x 22.2 in with default power supply |
| Weight | 20.05 lb (9.09 kg) | Safety Certifications | UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEEE 802.3 |
| EMC Certifications | 47 CFR Part 15, EN 300 386, EN 55032 Class A, CISPR 32 Class A, ICES-003 Class A, and related regional EMC standards | Environmental Compliance | RoHS 5 |
| Warranty | Cisco Enhanced Limited Lifetime Hardware Warranty, NBD hardware replacement where available, 90 days 8×5 TAC support | Multigigabit Duplex | Full duplex only, half duplex not supported |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
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Who needs C9300-48UN-A for 5G mGig UPOE and Network Advantage license?
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What does C9300-48UN-A add over C9300-48UN-E?
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Can C9300-48UN-A support high-density wireless access?
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How is C9300-48UN-A different from C9300-48H-A?
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Does C9300-48UN-A use modular uplinks for 5G mGig aggregation?
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When does C9300-48UN-A fit routed access?
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When is C9300-48UN-A the wrong SKU?
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What Network Advantage and 5G UPOE details matter for C9300-48UN-A?
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