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Aruba S4B21A#AC3 CX 8325H S4B21A Managed Ethernet Switch - 24-Port Multi-Rate - 2 x 10G - 18 x 25G - 4 x 100G - Layer 3 - 1U Rack-Mountable
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Product Features
Technical Overview
This switch provides 24 total expansion slots configured with 2 x 10 Gigabit Ethernet, 18 x 25 Gigabit Ethernet, and 4 x 100 Gigabit Ethernet ports, offering a maximum data transfer rate of 12.50 GB/s. It supports SFP28, QSFP28, and SFP+ transceiver modules for flexible fiber connectivity, with two dedicated SFP+ slots included.
Layer 3 switching enables advanced routing, VLAN segmentation, and policy-based traffic management, while a stack port simplifies network expansion through unified management. The switch is manageable via industry-standard protocols and supports key networking standards including IEEE 802.1Q for VLANs, IEEE 802.3ad for link aggregation, and IEEE 802.1p for quality of service (QoS).
This section brings together practical product details such as Features, Modular, Stack Port, Port/Expansion Slot Details, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The Aruba CX 8325H S4B21A combines high-density multi-rate connectivity with enterprise-grade reliability and management, making it ideal for evolving network infrastructures.
Flexible Port Configuration
With 2x10G, 18x25G, and 4x100G ports, this switch supports gradual migration from 10GbE to 25GbE and 100GbE, optimizing investments in existing and new equipment.
- Mixed-speed connectivity
- Future-ready scalability
- Reduced cabling complexity
Advanced Switching Features
Layer 3 capabilities provide routing between VLANs, ACLs for security, and QoS for prioritizing critical traffic, enhancing network performance and control.
- Inter-VLAN routing
- Traffic prioritization
- Enhanced security policies
High Availability Design
Redundant power supplies and a stack port ensure continuous operation and easy expansion, minimizing downtime and simplifying network growth.
- Dual PSUs for failover
- Unified stack management
- Modular fan cooling
Deployment / Use Cases
This switch is engineered for data center top-of-rack (ToR) deployments, enterprise core/distribution layers, and high-performance computing environments where low latency, high throughput, and reliable connectivity are essential.
It effectively supports server-to-server communication, storage area networks (SANs), virtualization clusters, and bandwidth-intensive applications like video streaming, large-scale backups, and real-time analytics. The optical fiber compatibility allows extended reach between buildings or across campuses without signal degradation.
This section brings together practical product details such as Features, Modular, Stack Port, Port/Expansion Slot Details, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Data Center ToR Switching
Deploy as a top-of-rack switch connecting servers and storage with 25GbE and 100GbE uplinks, reducing bottlenecks and improving data center efficiency.
Enterprise Network Core
Use in core or distribution layers to aggregate traffic from access switches, leveraging Layer 3 features for segmentation, routing, and optimized traffic flow.
Physical Profile
The switch features a compact, 1U rack-mountable design with dimensions of 1.69" (43 mm) height, 8.27" (210 mm) width, and 22.72" (577 mm) depth, weighing approximately 13.10 lb (5940 g). This form factor optimizes space in standard server racks while providing robust cooling with four included fans. The rack-mountable construction ensures secure installation in data centers, wiring closets, or network rooms, with front-accessible ports for easy cable management.
- Width
- 8.27" (210 mm)
- Depth
- 22.72" (577 mm)
- Height
- 1.69" (43 mm)
- Weight
- 13.10 lb (5940 g)
What's in the Box
The package includes all necessary components for immediate deployment and operation.
Highlights
- 24 multi-rate expansion slots with 2x10G, 18x25G, and 4x100G ports
- Layer 3 switching for advanced routing and traffic management
- 1U rack-mountable form factor with compact dimensions
- Supports SFP28, QSFP28, and SFP+ optical fiber transceivers
- Stack port for easy network expansion and unified management
- Redundant power supplies (PSUs) for high availability
- Manageable with remote monitoring (RMON), QoS, and link aggregation
- Complies with RoHS environmental standards
Specifications
| Specifications | |
|---|---|
| Manufacturer | Hewlett Packard Enterprise |
| Manufacturer Part Number | S4B21A#AC3 |
| Brand Name | Aruba |
| Product Series | CX 8325H |
| Product Model | S4B21A |
| Product Name | CX 8325H S4B21A Ethernet Switch |
| Product Type | Ethernet Switch |
| Technical Information | |
| Features | Remote Monitoring (RMON),Quality of Service (QoS),Port Mirroring,Link Aggregation,DHCP Relay |
| Interfaces/Ports | |
| Modular | Yes |
| Stack Port | Yes |
| Port/Expansion Slot Details | 2 x 10 Gigabit Ethernet Expansion Slot,18 x 25 Gigabit Ethernet Expansion Slot,4 x 100 Gigabit Ethernet Expansion Slot |
| Media & Performance | |
| Media Type Supported | Optical Fiber |
| Ethernet Technology | 25 Gigabit Ethernet,100 Gigabit Ethernet,10 Gigabit Ethernet |
| Network Technology | 25GBase-X,100GBase-X,10GBase-X |
| Maximum Data Transfer Rate | 12.50 GB/s |
| I/O Expansions | |
| Total Number of Expansion Slots | 24 |
| Expansion Slot Type | SFP28,QSFP28,SFP+ |
| Number of SFP+ Slots | 2 |
| Network & Communication | |
| Layer Supported | 3 |
| Networking Standards | IEEE 802.1AX,IEEE 802.1D,IEEE 802.1Q,IEEE 802.1ab,IEEE 802.1ak,IEEE 802.1p,IEEE 802.1s,IEEE 802.1t,IEEE 802.1w,IEEE 802.3ad,IEEE 802.3ae,IEEE 802.3ba,IEEE 802.3by,IEEE 802.3x,IEEE 802.3z |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| Input Voltage | 120 V AC,230 V AC |
| Power Source | Power Supply |
| Redundant Power Supply Supported | Yes |
| Power Consumption | 500 W |
| Physical Characteristics | |
| Compatible Rack Unit | 1U |
| Form Factor | Compact,Rack-mountable |
| Height | 1.69" (43 mm) |
| Width | 8.27" (210 mm) |
| Depth | 22.72" (577 mm) |
| Weight (Approximate) | 13.10 lb (5940 g) |
| Miscellaneous | |
| Package Contents | CX 8325H S4B21A Ethernet Switch 4 x Fans 2 x PSUs |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
User Manual
FAQ
What are the port configurations on this Aruba switch?
The Aruba CX 8325H S4B21A provides 24 total expansion slots: 2 x 10 Gigabit Ethernet ports, 18 x 25 Gigabit Ethernet ports, and 4 x 100 Gigabit Ethernet ports. These multi-rate ports support flexible connectivity using SFP28, QSFP28, or SFP+ transceivers for optical fiber, allowing adaptation to various network speeds and distances.
Does this switch support Layer 3 switching?
Yes, this switch supports Layer 3 switching, enabling advanced features like inter-VLAN routing, access control lists (ACLs), and quality of service (QoS). Layer 3 capabilities improve network segmentation, security, and traffic prioritization for optimized performance in enterprise and data center environments.
Is the Aruba CX 8325H S4B21A stackable?
Yes, it includes a stack port that allows multiple switches to be connected and managed as a single unit. Stacking simplifies network expansion, reduces management overhead, and enhances redundancy by creating a unified switching fabric.
What power features does this switch offer?
The switch supports redundant power supplies (PSUs) for high availability, with an input voltage of 120 V AC or 230 V AC. It consumes approximately 500 W under typical load, and the dual PSU design ensures continuous operation even if one power supply fails.
What is the form factor and rack compatibility?
This switch has a 1U rack-mountable form factor, with dimensions of 1.69" height, 8.27" width, and 22.72" depth. It weighs about 13.10 lb, making it suitable for standard server racks in data centers or network closets without occupying excessive space.
What management and monitoring features are included?
The switch is fully manageable and supports remote monitoring (RMON), quality of service (QoS), port mirroring, link aggregation, and DHCP relay. It complies with key networking standards like IEEE 802.1Q for VLANs and IEEE 802.3ad for link aggregation, providing robust control and visibility.
What uplink, SFP, fiber, or media support detail is listed?
The warranty or support detail listed is Optical Fiber, giving buyers a clearer picture of expected coverage after purchase.
What management, monitoring, or control option is listed?
25 Gigabit Ethernet,100 Gigabit Ethernet,10 Gigabit Ethernet.
| Qty | Price | Available |
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