C9300-48UB-E – 48 Ports UPOE modular uplinks – access switch

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C9300-48UB-E

(7 customer reviews)
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List Price: $11151 $7025
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C9300-48UB-E Description

  Cisco Catalyst C9300-48UB-E offers 48 Universal PoE (UPOE) ports—each up to 60 W—powered by an integrated 1100 W AC PSU (822 W PoE budget). Its UADP 2.0 ASIC delivers 256 Gbps of switching capacity and, when stacked via StackWise-480, achieves 736 Gbps switching capacity with stacking, forwarding up to 190.47 Mpps (553.42 Mpps stacked). With a 64 MB packet buffer, it handles bursts more effectively than standard models. Running IOS XE with Network Essentials, it supports VLANs, static/EIGRP/OSPF Lite, QoS, and hardware ACLs. Ideal for fiber-backed access closets, branch aggregation, or PoE-heavy deployments requiring deep buffering and basic Layer 3.

Product Performance

Ethernet Ports
Switching Capacity
Forwarding Rate

C9300-48UB-E Quick Specs

Parameter

C9300-48UB-E

Switching Capacity

256 Gbps single unit / 736 Gbps switching capacity with stacking

Forwarding Rate

190.47 Mpps single / 553.42 Mpps stacked

Downlink Ports

48 × 10/100/1000 Mbps UPOE (IEEE 802.3at/af/bt)

Packet Buffer

64 MB (vs. 32 MB on standard models)

PoE Budget (Default)

822 W (integrated 1100 W AC PSU)

Uplink Module Slot

1 × field-replaceable modular slot (1 GbE / 10 GbE / 25 GbE / 40 GbE / 100 GbE)

Stack Switching Capacity

736 Gbps switching capacity with StackWise-480

DRAM / Flash

8 GB / 16 GB

Key Features

64 MB Packet Buffer

Enhances burst absorption, reducing congestion and packet loss in video or large-file traffic.

48 × UPOE Ports (60 W)

Supports high-power devices (Wi-Fi 6E APs, pan-tilt-zoom cameras, digital signage) with 822 W budget from integrated 1100 W PSU.

StackWise-480 Scalability

Create a single logical fabric of up to eight switches, yielding 736 Gbps switching capacity with stacking and 553.42 Mpps aggregate forwarding.

Network Essentials Image

Provides basic Layer 3 (static/EIGRP Lite/OSPF Lite), VLANs, QoS, hardware ACLs via UADP 2.0 ASIC.

Modular Uplinks

One hot-swappable slot supporting 1 GbE, 10 GbE, 25 GbE, 40 GbE, or 100 GbE optics for flexible aggregation.

UADP 2.0 ASIC

Wire-speed hardware forwarding, 32 000 MAC addresses, 32 000 IPv4 routes, Flexible NetFlow, and low latency.

Applications Scenarios

High-Power Campus Edge

Power and connect dozens of Wi-Fi 6E APs and UPOE cameras while handling large multicast or broadcast bursts with 64 MB buffering. Stack up to eight for campus-wide layers.

Branch Office PoE Aggregation

Consolidate UPOE-powered VoIP phones, cameras, and access control under one chassis. Basic routing (OSPF Lite/EIGRP Lite) connects to a WAN router, and deep buffering smooths intermittent bulk traffic.

IoT Gateway & Convergence

Aggregate UPOE-powered sensors, signage, and kiosks at multigig speed. 64 MB buffer handles sporadic large-chunk uploads from IP cameras, ensuring minimal jitter.

Product Comparison

Parameter

C9300-48UB-E

C9300-48U-E

C9300-48UP-E

C9300-24UB-E

Software License

Network Essentials

Network Essentials

Network Essentials

Network Essentials

Downlink Ports

48 × 1 Gbps UPOE (60 W)

48 × 1 Gbps UPOE (60 W)

48 × 1 Gbps PoE+ (30 W)

24 × 1 Gbps UPOE (60 W)

Packet Buffer

64 MB

32 MB

32 MB

64 MB

PoE Budget (Default/Max)

822 W / 1800 W (with optional PSU)

822 W / 1800 W

437 W / 1440 W

370 W / 740 W

Switching Capacity

256 Gbps / 736 Gbps stacked

256 Gbps / 736 Gbps stacked

256 Gbps / 736 Gbps stacked

208 Gbps / 688 Gbps stacked

Forwarding Rate

190.47 Mpps / 553.42 Mpps (stacked)

190.47 Mpps / 553.42 Mpps (stacked)

154.76 Mpps / 513.24 Mpps (stacked)

154.76 Mpps / 513.24 Mpps (stacked)

Stack Switching Capacity

736 Gbps switching capacity with StackWise-480

736 Gbps switching capacity with StackWise-480

736 Gbps switching capacity with StackWise-480

688 Gbps switching capacity with StackWise-480

MACsec Support

Yes (hardware-accelerated)

Yes (hardware-accelerated)

No

Yes (hardware-accelerated)

C9300-48UB-E Switch Rear Panel

The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.

1

Ground connectors

7

StackPower connectors

2

USB3.0–SSD port

8

AC OK (input) status LED

3

BEACON LED

9

PS OK (output) status LED

4

CONSOLE (RJ-45 console port)

10

StackWise-480 port connectors

5

MGMT (RJ-45 10/100/1000 management port)

11

Power supply modules

6

Fan modules

–

–

Rear Panel of a Cisco Catalyst 9300 Series Switch

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.

1

Cisco Catalyst 9300 Series switch with optional network module1 (power supply and fan modules not shown)

9

Eight number-8 Phillips flat-head screws

2

AC power cord

10

Cable guide

3

Product documentation and compliance document

11

M4.0 x 20mm Phillips pan-head screw

4

Four rubber mounting feet

12

(Optional) RJ-45 console cable

5

Ground lug screw and ring terminal

13

(Optional) USB console cable

6

Two 19-inch mounting brackets

14

(Optional) StackWise-480/1T cable (0.5-meter, 1-meter, or 3-meter)

7

Four number-12 pan-head screws

15

(Optional) StackPower cable (0.3-meter or 1.5-meter)

8

Four number-10 pan-head screws

16

(Optional) StackWise-320 cable

cisco-catalyst-9300-switch-shipping-box

Specifications

Parameter C9300-48UB-E Specification
Switching Capacity 256 Gbps single unit / 736 Gbps switching capacity with stacking
Forwarding Rate 190.47 Mpps single / 553.42 Mpps stacked
Downlink Ports 48 × 10/100/1000 Mbps UPOE (IEEE 802.3at/af/bt)
Packet Buffer 64 MB (double the standard 32 MB) for burst resilience
Uplink Module Slot 1 × field-replaceable modular slot (1 GbE/10 GbE/25 GbE/40 GbE/100 GbE optics)
PoE Budget (Default) 822 W (with 1100 W AC PSU)
PoE Budget (Max) 1800 W (with optional 1900 W AC PSU upgrade)
MAC Address Table 32,000 entries
IPv4 Routes 32,000 (24 000 direct / 8 000 indirect)
IPv6 Routes 16,000
VLAN IDs Supported 4,094
ACL Entries 5,120
QoS Entries 5,120
Flexible NetFlow Flows 64,000 flows
DRAM 8 GB DDR4
Flash 16 GB
Stack Switching Capacity 736 Gbps with StackWise-480 (up to 8 members)
MTBF 207,450 hours
Dimensions (H × W × D) 1.73 × 17.5 × 16.1 in (4.4 × 44.5 × 40.9 cm)
Weight 17.03 lb / 7.72 kg
Operating Temperature –5 °C to 45 °C
Relative Humidity 5 % to 90 % non-condensing
Acoustic (Idle/Max) 47 dB / 50 dB @ 25 °C
Compliance IEEE 802.3at/af/bt, 802.1X, 802.1Q, RoHS, FCC Class A, CISPR 32 Class A
Security Features Hardware ACLs, 802.1X, TrustSec, Dynamic ARP Inspection
Management CLI, SNMPv3, NETCONF, RESTCONF, Cisco DNA Center Integration
Warranty Limited Lifetime – Next Business Day Replacement

Get More Information

Discover unbeatable prices and fast shipping for the C9300-48UB-E Access the detailed C9300-48UB-E datasheet and ensure you’re getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via Live chat or email us at [email protected]

Quality Certifications

Customer Reviews

Write A Review
4.9
(7 reviews)
5 Stars
6
4 Stars
1
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2 Stars
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1 Stars
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    Winston
    Posted on 15/06/2025
    Verified Buyer
    5.0

    Impeccable service. A pleasure doing business.

    Infrastructure Mgr
    Posted on 28/02/2025
    Verified Buyer
    5.0

    Pallet was shrink-wrapped perfectly. No transit damage.

    Channing Blitz
    Posted on 27/01/2025
    Verified Buyer
    5.0

    Fast delivery and box arrived in perfect condition.

    Trevon Hodge
    Posted on 09/07/2024
    Verified Buyer
    5.0

    Setup was intuitive; solid option for high-density racks.

    Melody Duarte
    Posted on 11/04/2024
    Verified Buyer
    5.0

    Excellent unit—handles large VLAN setups without slowing down.

Questions & Answers

  • Are there compatibility concerns I should be aware of when integrating the C9300-48UB-E into my existing network?

    Compatibility concerns typically include software version alignments, integration with existing security protocols, and hardware compatibility checks.

  • Can I stack multiple units of the C9300-48UB-E together, and what's the limit?

    Stacking capabilities depend on the specific technology implemented; usually, multiple units can be stacked, often limited by manufacturer's recommendations.

  • How do I perform a software update on the C9300-48UB-E?

    Updates can usually be performed via the device's web interface, CLI, or through network management software provided by the manufacturer.

  • Does the C9300-48UB-E support Power over Ethernet (PoE), and what standards does it comply with?

    PoE support and standards compliance vary by model; check the specifications to verify compatibility with your requirements.

  • Is there a recommended alternative if I can't find the C9300-48UB-E?

    Comparable alternatives generally include other models within the same series or brand, ensuring similar specifications and compatibility.

  • What diagnostic tools are available for troubleshooting the C9300-48UB-E?

    Diagnostic tools provided typically include built-in hardware diagnostics, log inspection tools, and remote management utilities.

  • What should I do if my C9300-48UB-E firmware update fails?

    If a firmware update fails, consult the recovery instructions from the official documentation or reach out to technical support for specific guidance.

  • How energy-efficient is the C9300-48UB-E compared to similar devices?

    This model is designed to be energy-efficient, typically featuring technologies that optimize power usage and reduce overall consumption.

  • What advanced security features does the C9300-48UB-E offer?

    Security features often include encryption capabilities, access controls, threat detection systems, and support for secure management protocols.

  • What steps should I take if the C9300-48UB-E experiences connectivity issues?

    Begin by checking cables and connectors, verifying configurations, examining logs, and rebooting the device if necessary.

  • How loud is the C9300-48UB-E when operating at full capacity?

    Noise levels vary by model but generally remain within acceptable ranges suitable for office environments; consult specific product details for exact metrics.

  • Can the C9300-48UB-E operate effectively in data center environments?

    While some models can function well in data centers, specialized data center switches typically offer superior performance and redundancy.

  • What warranty coverage does the C9300-48UB-E typically include?

    Warranty coverage usually includes limited parts and labor warranty, details of which can be confirmed through the vendor’s official support page.

  • Does the C9300-48UB-E require specific environmental conditions for optimal operation?

    Ideally, maintain a temperature-controlled, dust-free environment to ensure optimal performance and longevity.

  • How easy is it to configure the C9300-48UB-E for IPv6 usage?

    Configuring for IPv6 is straightforward, typically detailed in the user manual and achievable via standard management interfaces.

  • What’s the typical lifespan of the C9300-48UB-E in regular usage scenarios?

    Under typical operational conditions, the device generally has a lifespan of 5 to 7 years, depending on environmental factors and maintenance practices.

  • Can the C9300-48UB-E be managed remotely, and how?

    Yes, remote management is generally supported through protocols like SSH, HTTPS, or vendor-specific remote management platforms.

  • What are common hardware issues reported by users of the C9300-48UB-E?

    Common hardware issues include port failures, fan malfunctions, or power supply problems; regular maintenance can mitigate many issues.

Warranty

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Resources Downloads

  • C9300-48UB-E Datasheet

  • Cisco Catalyst 9300 Switch Datasheet

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