Product Type | Router |
Form Factor | Rack-mountable (front-to-back airflow) |
Weight | 20.5 lbs |
Power Requirements | Internal power supply (not installed) - hot-plug; 370W operational consumption |
Power Redundancy | Optional |
Installed Power Supply Modules (Max) | 2 (max) |
Included Accessories | 2 blank panels |
Connectivity Technology | Wired |
RAM | 32 GB |
Internal Storage | 128 GB SSD |
Cisco NCS55A2 Fixed 24x10G + 16x25G MPA Router Chassis



Key Benefits

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- High port density and modular design support flexible scaling and long-term application growth
- Comprehensive routing and security features meet enterprise and service provider-grade network requirements
- Built with efficiency in mind—low power consumption (370W) and compact footprint for simplified data center integration
Product Overview
The Cisco NCS55A2 Fixed Router is engineered for high-performance core and aggregation use cases. It features 24x10G and 16x25G Ethernet connectivity and supports up to 900 Gbps throughput. Key protocol support includes IS-IS, BGP, OSPFv3, MPLS, and more, with integrated security via MACsec, ACL, and AAA. It includes 2 modular expansion slots and supports Zero Touch Provisioning, L2/L3 VPNs, and SR-TE. The design is rack-mountable with front-to-back airflow and supports optional redundant hot-plug power supplies. Its compliance with a breadth of industry standards and TAA ensures flexible deployment in regulated environments. Rugged construction supports temperatures from 32°F to 131°F and humidity up to 95%.
Specifications
Product Overview
Wireless Features
Wi-Fi Support |
Compliance & Origin
Country of Origin | China / United States |
TAA Compliant | Yes |
Certifications and Compliance Standards | IEEE 802.1Q, IEEE 802.3ad, IEEE 802.1ad, IEEE 802.1ae, ITU-T G.8265.1, G.8275.1, CISPR 24, EN 61000-3-2, EN 61000-3-3, EN55024, UL 60950-1, RoHS 6/6, GR-1089-CORE, FCC Part 15B Class A, VCCI Class A, ICES-003 Class A, and others |
Advanced Security Features
MACsec (Media Access Control Security) | Supported |
ACL (Access Control List) | Supported |
AAA (Authentication, Authorization, Accounting) | Supported |
Authentication Method | TACACS+ |
Interfaces
10Gb Ethernet Ports | 24 |
25Gb Ethernet Ports | 16 |
Console Port | 1 x RJ-45 |
Management Port | 1 x RJ-45 |
USB Port | 1 x USB |
Expansion Slots | 2 (total) / 2 (free) |
Data Transfer Rate | 10/25 Gbps per port |
Total Throughput | 900 Gbps |
Jumbo Frame Support | 9216 bytes |
Physical & Environmental
Dimensions (W x D x H) | 17.3 in x 11 in x 3.5 in |
Minimum Operating Temperature | 32 °F |
Maximum Operating Temperature | 131 °F |
Operating Humidity | 5 - 95% (non-condensing) |
Cloud Management & Licensing
Remote Management Protocols | SNMP v3, SSH |
Zero Touch Provisioning (ZTP) | Supported |
Supported VPN Types | L2VPN, L3VPN, EoMPLS |
Routing & Protocol Features
Routing Protocols Supported | IS-IS, BGP, OSPFv2, OSPFv3, PIM-SM, PIM-SSM, IGMPv3, MLDv2, ECMP, BFD, IS-ISv6, MPLS, SR-TE |
Layer 2 Features | LACP, QoS, IEEE 802.1Q VLAN tagging, VRRP, iPXE |
Multiprotocol Label Switching (MPLS) | Supported (including LSR, LDP) |
Forwarding Information Base (FIB) Entries | Up to 1,000,000 |