Product Summary:
The Cisco DS-C9148S-D12PSK9 is a 48-port Fibre Channel switch from the Cisco MDS 9148S Series, pre-licensed with 12 active ports. It is optimized for small to medium-sized SAN deployments that require 16-Gbps Fibre Channel connectivity, high reliability, and scalable performance — all within a compact 1RU form factor.
Product Description:
The DS-C9148S-D12PSK9 is part of Cisco’s MDS 9100 Series and is designed to deliver flexible, reliable, and scalable Fibre Channel switching. It comes with 12 active ports out of a possible 48, allowing you to scale as needed using port activation licenses. Supporting up to 16-Gbps Fibre Channel speeds with backward compatibility, this model ensures investment protection and smooth migration for growing enterprise SAN environments.
This switch features enterprise-class reliability with redundant hot-swappable power supplies and fans. It supports advanced features such as virtual SANs (VSANs), port security, NPIV (N_Port ID Virtualization), slow-drain device detection, and integration with Cisco Data Center Network Manager (DCNM) for centralized management.
Ideal for workloads such as virtualization, backup, and high-speed storage access, the DS-C9148S-D12PSK9 delivers excellent performance in a dense and energy-efficient footprint.
Key Features:
12 pre-activated ports (expandable up to 48 with licenses)
Supports 2/4/8/16 Gbps Fibre Channel
Hot-swappable dual redundant power supplies
Enterprise features: VSAN, NPIV, zoning, diagnostics
Backward compatibility with previous FC speeds
Compact 1RU design for space efficiency
Centralized SAN management via Cisco DCNM
Product Specifications Table:
| Specification | Details |
| Product Code | DS-C9148S-D12PSK9 |
| Total Ports | 48 (12 licensed) |
| Port Speeds | 2/4/8/16 Gbps auto-negotiation |
| Form Factor | 1RU Rack-mountable |
| Switching Capacity | Up to 768 Gbps |
| Latency | Sub-microsecond |
| Power Supplies | Dual hot-swappable AC power supplies |
| Redundancy | Power and fan module redundancy |
| Licensing | On-demand port activation model |
| Management | Cisco DCNM, CLI, SNMP |
| Dimensions (H x W x D) | 1.72 x 17.3 x 20.0 in (4.4 x 43.9 x 50.8 cm) |
| Weight | Approx. 18 lbs (8.2 kg) |
Similar Models Comparison Table:
| Model | Active Ports | Max Ports | Port Speed | Key Difference |
| DS-C9148S-D12PSK9 | 12 | 48 | 2/4/8/16 Gbps | Dual power supply version, scalable |
| DS-C9148S-24PK9 | 24 | 48 | 2/4/8/16 Gbps | More ports licensed from factory |
| DS-C9148S-48PK9 | 48 | 48 | 2/4/8/16 Gbps | Fully licensed 48-port model |
| DS-C9148T-24PETK9 | 24 | 48 | Up to 32 Gbps | 32G-ready model with 24 licensed ports |
| DS-C9132T-24K9 | 24 | 32 | Up to 32 Gbps | Smaller port count, 32G-capable switch |
