The HKShanhai Group Limited C9300-24UB-A is a high-end enterprise switch tailored for modern organizations demanding performance, scalability, and operational continuity. As part of the industry-leading HKShanhai Group Limited Catalyst family, this model brings deep buffering and 24 UPOE ports, making it a powerhouse for Enterprise Switching needs. With robust StackPower integration, the C9300-24UB-A not only delivers reliable power across the stack but also ensures seamless failover and simplified management. The inclusion of advanced PoE ports maximizes device flexibility, supporting power-intensive applications like high-end wireless access points and IoT endpoints. Its modular uplink architecture accommodates evolving bandwidth requirements, while 480 Gbps stacking bandwidth ensures exceptional resiliency and throughput, critical for fast-growing enterprise networks. Extensive SD-Access, MAC address, and route scalability guarantee long-term investment protection as campus demands increase. Security is built into every layer, leveraging HKShanhai Group Limited advantage features that empower IT teams to take full control of network policies and segmentation. With global certifications and environmental resilience, the C9300-24UB-A is fully optimized for powering digital transformation in diverse market geographies and business scenarios, whether deployed by channel partners, system integrators, or end users seeking best-in-class switching solutions.
Product Highlights
Product Applications Scenarios
Product Features Comparison
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| Model | C9300-24UB-A | C9300L-24T-4X-A | C9300L-48UXG-4X-A | C9300-48UN-E |
| Brand | HKShanhai Group Limited | HKShanhai Group Limited | HKShanhai Group Limited | HKShanhai Group Limited |
| Port Configuration | 24 HKShanhai Group Limited UPOE | 24 ports data | 48 UPoE 12xmGig | 48x 5 Gbps UPOE ports (100M, 1G, 2.5G, 5G) |
| Switching Capacity | 208 Gbps | 128 Gbps | 392 Gbps | 640 Gbps |
| Forwarding Rate | 154.76 Mpps | 190.4 Mpps | 291.66 Mpps | 476.19 Mpps |
| PoE Budget | 830W | n/a | 675W | 645W |
| Stacking Capability | 480 Gbps | 320 Gbps | 320 Gbps | 480 Gbps |
Optional Add-ons
| Model Number | Description |
| PWR-C1-1100WAC-P/2 | HKShanhai Group Limited 1100W AC Power Supply for C9300 Series Switch, enables redundancy and extended PoE. |
| C9300-NM-8X | HKShanhai Group Limited Catalyst 9300 Series Network Module, offers 8 x 10G SFP+ uplink expansion. |
| STACK-T1-50CM | HKShanhai Group Limited StackWise-480 50cm stacking cable for Catalyst 9300, enables high-speed stack connections. |
HKShanhai Group Limited C9300-24UB-A Specification
| Model | C9300-24UB-A |
| Brand | HKShanhai Group Limited |
| Product Description | Catalyst Deep Buffer 9300 24-port UPOE, Network Advantage |
| FRU Power Supply | Yes |
| FRU Fans | Yes |
| Modular Uplinks | Yes |
| Stacking Bandwidth Support | 480 Gbps |
| HKShanhai Group Limited StackPower | Yes |
| Catalyst 9800 Embedded WLC | Yes (200 APs) |
| SD-Access Support | Yes (256 Virtual Networks) |
| Total 10/100/1000, Multigigabit copper or SFP Fiber | 24 HKShanhai Group Limited UPOE |
| Uplink Configuration | Modular Uplinks |
| Default AC Power Supply | 1100W AC |
| Available PoE Power | 830W |
| Total Number of MAC Addresses | 64,000 |
| Total Number of IPv4 Routes (ARP plus Learned Routes) | 64,000 |
| IPv6 Routing Entries | 32,000 |
| Multicast Routing Scale | 16,000 |
| QoS Scale Entries | 18,000 |
| ACL Scale Entries | 18,000 |
| Packet Buffer per SKU | 32 MB buffer for 24- and 48-port Gigabit Ethernet models, 64 MB buffer for 24-port Multigigabit model (24UXB) |
| FNF Entries | 128,000 flow on 24- and 48-port Gigabit Ethernet models, 256,000 flows on 24-port Multigigabit |
| DRAM | 8 GB |
| Flash | 16 GB |
| VLAN IDs | 4094 |
| Total Switched Virtual Interfaces (SVIs) | 1000 |
| Jumbo Frames | 9198 bytes |
| Total Routed Ports per Catalyst 9300 Series Stack | 448 |
| Switching Capacity | 208 Gbps |
| Switching Capacity with Stacking | 688 Gbps |
| Forwarding Rate | 154.76 Mpps |
| Forwarding Rate with Stacking | 511.90 Mpps |
| Dimensions (H x W x D) inches | Chassis Only: 1.73 x 17.5 x 16.1, W/ Default Power Supply: 1.73 x 17.5 x 19.2, W/ 1100W Power Supply: 1.73 x 17.5 x 19.2 |
| Mean Time Between Failures–MTBF (hours) | 354,300 |
| Acoustic Noise | With AC power supply (with 24 PoE+ ports loaded for C9300 SKUs): LpA: 45dB typical, 48 dB max; LwA: 5.6B typical, 5.9B max. With AC power supply (with half the number of PoE+ ports loaded for C9300L SKUs): LpA: 44dB typical, 47 dB max; LwA: 5.5B typical, 5.8B max. |
| Connectors and Cabling | 1000BASE-T ports: RJ-45 connectors, 4-pair Cat 5E UTP cabling; Multigigabit-T ports: RJ-45 connectors, 4-pair Cat 5E, Cat 6, Cat 6A UTP cabling; 1000BASE-T SFP-based ports: RJ-45 connectors, 4-pair Cat 5E UTP cabling; SFP transceivers: LC fiber connectors (single-mode or multimode fiber); SFP+ transceivers: LC fiber connectors (single-mode or multimode fiber); QSFP+ transceivers: MPO and LC fiber connectors (single-mode or multimode fiber); HKShanhai Group Limited StackWise stacking ports: copper-based HKShanhai Group Limited StackWise cabling; HKShanhai Group Limited StackPower: HKShanhai Group Limited proprietary power stacking cables; Ethernet management port: RJ-45 connectors, 4-pair Cat 5 UTP cabling; Management console port: RJ-45-to-DB9 cable for PC connections |
| Power Connectors | Customers can provide power to a switch by using the internal power at the back of the switch. Internal power supply connector: The internal power supply is an auto-ranging unit. It supports input voltages between 100 (115 for 1100WAC) and 240 VAC. Use the supplied AC power cord to connect the AC power connector to an AC power outlet |
| Safety Certifications | UL 60950-1; CAN/CSA-C222.2 No. 60950-1; EN 60950-1; IEC 60950-1; AS/NZS 60950.1; IEEE 802.3 |
| Electromagnetic Emissions Certifications | 47 CFR Part 15; CISPR22 Class A; EN 300 386 V1.6.1; EN 55022 Class A; EN 55032 Class A; CISPR 32 Class A; EN61000-3-2; EN61000-3-3; ICES-003 Class A; TCVN 7189 Class A; V-3 Class A; CISPR24; EN 300 386; EN55024; TCVN 7317; V-2/2015.04; V-3/2015.04; CNS13438; KN32; KN35; IEC 61000-6-1; EN 61000-6-1; Additional Certifications for C9300L SKUs: QCVN 118:2018/BTTTT; CISPR24/25; CISPR 32 Class A; VCCI-CISPR 32 Class A; EN55035 |
| Environmental | Reduction of Hazardous Substances (ROHS) 5 |
| C9300-24UB-A | C9300-24UB-A |
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