SM-56 - Cisco Firepower 9000 Series Appliances Overview
SM-56 - Cisco Firepower 9000 Series Appliances is a genuine modular capacity expansion product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco Firepower 9000 Series family, the SM-56 unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is installed into a compatible chassis slot, where it works alongside the supervisor and line cards to extend the platform’s capabilities.
From a specification standpoint, it offers 48 ports for client, server or uplink connectivity; aggregate capacity of 12 Gbps. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include perimeter protection with stateful inspection, branch-office security with VPN and threat prevention, and data-center north-south traffic filtering. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “FirePower 9000”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the SM-56. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Capacity Expansion
Add ports and performance to existing chassis.
Upgrade Path
Modernize aging platforms with compatible modules.
Flexible I/O
Mix copper, fiber and high-speed uplinks.
Buying a Pre-Owned SM-56
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
SM-56 Specifications | |
| Brand | Cisco |
| Product Name | FirePower 9000 |
| Model | SM-56 |
| Firewall Throughput | 12 Gbps |
| Maximum Concurrent Sessions | 1 Million |
| Maximum VLANs | 6000 |
| Maximum IPSec VPN Peers | 10,000 |
| Next-Gen IPS Throughput | 10 Gbps |
| Power Supply | AC or DC |
| Network Interface Ports | 48 x 1/10 Gbps SFP+, 2 x 40 Gbps QSFP+ |
| Redundancy | Failover |
| Form Factor | 2U Rack-mountable |
| Cooling | Front to Back Airflow |
| Management | CLI, Web Interface |
| Operating Environment | 0 to 45°C (32 to 113°F) |
| Storage Environment | -20 to 70°C (-4 to 158°F) |
| Relative Humidity | 10% to 90%, non-condensing |
| Compliance | FCC, CE, UL |
| Chassis Dimensions | 17.24 in x 3.47 in x 20.26 in |
| Memory | 16 GB |
| Storage | 256 GB SSD |
| Warranty | 1 Year Limited Hardware Warranty |
SM-56 - Product Notes
This listing is a specific SKU variant of the SM-56 family. Review the specifications above and confirm compatibility with your existing infrastructure, including software version, mounting, and interface requirements, before ordering.
For volume requirements we offer configuration checks and staged delivery options. Our team can confirm revision levels, software compatibility, and lead time before you place an order.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation.
SM-56 - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco firewall provides stateful inspection, VPN termination, and threat defense at the network perimeter. It is commonly deployed in internet-edge, site-to-site, and remote-access roles.
Deployment guidance: When planning this SM-56 unit into a network, confirm the software image (IOS/IOS-XE/NX-OS) required, the power and cooling profile, and the upstream/downstream interface types that match your existing infrastructure. For a like-for-like refresh, match the feature set of the units already in service so management and automation behave consistently.
Our Cisco reconditioning process: Every pre-owned Cisco unit at LinkNewNet passes a documented reconditioning flow before dispatch - visual inspection, internal cleaning, firmware verification, port-by-port testing, and configuration reset to factory defaults. This ensures the unit you receive operates reliably and integrates cleanly with your existing Cisco management tools.
Related models in this family: SM-40, SM-48. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.

