Cisco C8375-E-G2 Router
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Introduction
In today’s rapidly evolving digital landscape, organizations are constantly seeking ways to connect their branch offices, campus locations, and data centers securely and efficiently. Traditional networking infrastructures often struggle to keep pace with the massive influx of cloud applications, video traffic, and the sheer volume of connected devices. As enterprises accelerate their digital transformation journeys, they require a networking foundation that is not only robust and scalable but also agile enough to adapt to dynamic business needs without adding unnecessary complexity to daily IT operations.
To address these modern enterprise challenges, Cisco has introduced a powerful solution designed to redefine edge computing and wide-area networking. This hardware platform brings together enterprise-grade routing, robust security, and high-performance capabilities into a single, cohesive device. By bridging the gap between traditional branch connectivity and advanced cloud-first architectures, organizations can simplify their network footprints, reduce operational overhead, and ensure seamless application performance for users regardless of their physical location.
Product overview
The Cisco Catalyst 8300 Series Edge Platforms represent a major leap forward in multi-service branch routers, specifically engineered to accelerate the transition to secure cloud architectures and software-defined WAN environments. Built upon a modern, multi-core architecture, these routers deliver exceptional throughput and cryptographic performance to handle encrypted traffic at scale. They are designed to meet the rigorous demands of modern enterprise branches that require deep visibility, application optimization, and multi-cloud connectivity without compromising on speed or reliability.
These platforms offer modular flexibility, allowing businesses to tailor their hardware configurations to match current requirements while retaining the headroom to scale as demands grow over time. With integrated slot options for various interface modules, organizations can seamlessly transition between legacy connectivity types and high-speed fiber or 5G cellular options. Furthermore, the hardware is tightly integrated with Cisco IOS XE software, providing a consistent operational experience across the entire enterprise network, from the campus core to the remote branch edge.
Features and benefits
- Delivers high-performance routing capabilities combined with advanced multi-core processing to support heavy traffic loads and intensive branch workloads effortlessly.
- Integrates comprehensive security features directly into the hardware, including enterprise firewall protection, encrypted traffic analytics, and robust IPsec VPN capabilities to safeguard sensitive corporate data.
- Provides native software-defined WAN functionality, allowing IT teams to dynamically route traffic across multiple transport links such as MPLS, broadband, and 5G for optimal application performance.
- Offers modular interface slots that support a wide variety of WAN and LAN connectivity options, ensuring long-term investment protection and adaptability to changing network needs.
- Features centralized management through a unified dashboard, enabling zero-touch provisioning and significantly reducing the time and effort required to deploy new branch locations.
- Optimizes user experience for critical cloud applications through advanced traffic shaping, quality of service enforcement, and real-time path selection to minimize latency and packet loss.
- Enhances energy efficiency with modern hardware design, helping enterprises reduce their power consumption and overall carbon footprint across distributed branch networks.
- Ensures high availability and business continuity through redundant power supplies and advanced failover mechanisms that prevent unexpected network downtime.
Overview
Cisco 8300 Series Secure Routers deliver secure networking simplified. Powered by the all-new secure networking processor and the unified Cisco secure networking platform, the Cisco 8300 Series Secure Routers deliver robust, platform-level security, advanced performance engineering through routing and SD-WAN, and on-premises, infrastructure-as-code, or cloud management flexibility that enables businesses to seamlessly scale and grow. Each class of secure routers is designed to deliver risk reduction, enhanced reliability, and future readiness.
Platform highlights
Cisco 8300 Series Secure Routers are engineered for large branch locations and provide scalable, high-throughput connectivity with embedded platform-level security. With hardware-native assurance, post-quantum cryptography, and unified infrastructure as code, the Cisco 8300 Series enables large branches to support bandwidth-intensive applications and evolving threat landscapes with confidence.
Use cases:
- Secure routing or SD-WAN for thousands of users/devices
- High-throughput, secure connectivity for bandwidth-intensive applications
- Network segmentation for compliance purposes
- Advanced threat protection for mission-critical operations
Key features
- Dedicated secure networking processor for fast cryptography and deep packet inspection
- Hardware acceleration ensures high throughput with robust threat protection
- Combines NGFW security, routing, and SD-WAN in one unified platform
- Simplifies branch infrastructure and management with all-in-one secure access
- Future-proofs branch security with advanced, quantum-resistant encryption
- Hardware acceleration for AI and ML tasks
- Optimized for faster AI and ML computation
- Quiet, reliable, fanless SKU ideal for noise-sensitive or space-constrained sites
- Reduced moving parts for lower maintenance and enhanced durability
Models and specifications
The Cisco 8300 Series Secure Routers offer both fixed and modular configurations to meet diverse networking needs and include three models: Cisco 8375-E-G2, Cisco 8355-G2 and 8355-G2-MX. Learn more about the 8355-G2-MX.
C8375-E-G2 is a modular platform with 1 SM and 1 NIM slot plus 2 x 10 Gbps SFP/SFP+ and 4 x 2.5G multigigabit RJ45 ports.

Figure 1. Front view of a Cisco C8375-E-G2 Secure Router
Table 1. Front panel of Cisco C8375-E-G2 Secure Router
| Label | Description |
|---|---|
| 1 | USB 3.0 Type C Storage |
| 2 | Management RJ45 Port |
| 3 | Console RJ45 / Micro-USB Port |
| 4 | 4 x 2.5G Multigigabit RJ45 Port |
| 5 | 2 x 10G SFP/SFP+ Port |
| 6 | NIM Slot |
| 7 | M.2 Storage Slot (eUSB / SED) |
| 8 | SM Slot |
| 9 | Label Tray |
| 10 | RFID |

Figure 2. Rear view of a Cisco C8375-E-G2 Secure Router
Table 2. Rear panel of Cisco C8375-E-G2 Secure Router
| Label | Description |
|---|---|
| 1 | Power Supply Slot 1 |
| 2 | Replaceable Fan Tray Assembly |
| 3 | PIM Slot |
| 4 | Power ON/OFF Switch |
| 5 | Power Supply Slot 0 |
C8355-G2 is a fixed platform with 4 x 10 Gbps SFP/SFP+, 4 x 5G multigigabit RJ45, and 2 x 1G RJ45 ports.

Figure 3. Front view of a Cisco C8355-G2 Secure Router
Table 3. Front panel of Cisco C8355-G2 Secure Router
| Label | Description |
|---|---|
| 1 | Reset Button |
| 2 | Power Button |
| 3 | Dual Power Supply Input |
| 4 | Status LED, blue beacon LED |
| 5 | 4 x 5G Multigigabit RJ45 Port |
| 6 | 2 x 1G RJ45 Port |
| 7 | 4 x 10G SFP/SFP+ Port |
| 8 | Label Tray |
| 9 | Console RJ45 / Micro-USB Port |
| 10 | Management RJ45 Port |
| 11 | USB 3.0 Type C Storage |
| 12 | PIM Slot |
| 13 | RFID |

Figure 4. Rear view of a Cisco C8355-G2 Secure Router
Table 4. Rear panel of Cisco C8355-G2 Secure Router
| Label | Description |
|---|---|
| 1 | Kensington Lock |
Table 5. Technical specifications
| Cisco C8375-E-G2 | Cisco C8355-G2 | |
|---|---|---|
| Interfaces and Slots | ||
| WAN ports | 2 x 10G SFP/SFP+ 4 x 2.5G mGig RJ45 (2x UPoE+) |
2 x 10G SFP/SFP+ 2 x 5G mGig RJ45 (2x UPoE+) |
| Flex ports | - | 2 x 5G mGig RJ45 (2x UPoE+) 2 x 1G RJ45 |
| LAN Ports | - | 2 x 10G SFP/SFP+ |
| Expansion Slots | 1 x NIM 1 x SM |
- |
| Cellular Slot | 1 x PIM | 1 x PIM |
| Management Port | 1 x RJ45 OOB Mgmt 1 x RJ45 / 1x Micro-USB console |
|
| Memory and Storage | ||
| DRAM | 16 GB (default) Upgradeable to 32 GB |
16 GB (Fixed) |
| Storage | 16 GB (default) 32 GB 600 GB 2 TB |
16 GB (default) 32 GB 600 GB 2 TB |
| Power Supply (Default -Dual PSU) | 400W AC (Internal FRU) | 110W AC (External Adapter) |
| Power Supply (Upgrade options) | 760W AC + PoE (PoE Budget - 360W) 500W DC |
230W AC + PoE (PoE Budget - 120W) |
| Typical Power Consumption (with default PSU and with no modules) | 55W | 45W |
Table 6. Performance and Scale
| Cisco C8375-E-G2 | Cisco C8355-G2 | |
|---|---|---|
| Throughput | ||
| Forwarding (512B) | 38 Gbps | 38 Gbps |
| IPsec (512B) | 20 Gbps | 20 Gbps |
| SD-WAN* (512B) | 12 Gbps | 8.7 Gbps |
| Threat Protection * (EMIX) | 7 Gbps | 3.9 Gbps |
| Scale | ||
| IPv4/IPv6 routes | 2M | 2M |
| IPsec tunnels | 3500 | 3500 |
| IPv4 ACLs | 4000 | 4000 |
| IPv4 ACEs | 20K | 20K |
| NAT Sessions | 1.5M | 1.5M |
| VRFs | 4000 | 4000 |
*SD-WAN feature combination: IPsec + QoS + Deep Packet Inspection + Flexible NetFlow
* Threat Protection : 100% DIA-NAT + NGFW + IPS + URLF + AMP
Table 7. Mechanical specifications
| Description | C8375-E-2 | C8355-G2 |
|---|---|---|
| Dimensions (H x W x D) | 1.73 in x 17.5 in x 16.25 in | 1.73 in x 17.5 in x 11.49 in |
| Rack Units (RU) | 1 RU | 1 RU |
| Chassis weight | 14.3 lbs (with 2X AC power supplies and fan tray) |
9.25 lbs |
| Input voltage | AC: 85 to 264 VAC DC: -40 to 72V; 48V nominal |
AC: 85 to 264 VAC |
| Operating temperature | 0 to 40°C (32° to 104°F), up to 10,000 feet 0 to 45°C (32° to 113°F), up to 6000 feet For NEBS, -5 to 55°C (23° to 131°F), up to 6000 feet |
0 to 40°C (32° to 104°F), sea level |
| Storage temperature | -40 to 70°C -40° to 158°F |
-40 to 70°C -40° to 158°F |
| Relative humidity (noncondensing) |
Operating: 5 to 85% Non-operating and Storage: 5 to 95% |
Modules
| Product number | Description |
|---|---|
| WAN modules | |
| C-NIM-WAN-2X | 2-port 1/10Gbps SFP/SFP+ NIM with WAN MACsec |
| C-NIM-WAN-4S | 4-port 1Gbps SFP NIM with WAN MACsec |
| LAN modules | |
| C-NIM-4X | 4-port 1/10 Gbps SFP/SFP+ switch NIM, LAN/WAN MACsec and Optional L3 |
| C-NIM-8T | 8-port 100 Mbps/1 Gbps switch NIM, LAN/WAN MACsec and Optional L3 |
| C-NIM-8M | 8-port 100M/1/2.5 Gbps switch NIM, UPOE+, LAN/WAN MACsec and Optional L3 |
| C-SM-16P4M2X | 22-port Catalyst L2 switch module with UADP ASIC |
| DSL/broadband | |
| NIM-VAB-A | Multi-mode VDSL2/ADSL/2/2+ NIM Annex A |
| NIM-VA-B | Multi-mode VDSL2/ADSL/2/2+ NIM Annex B |
| NIM-VAB-M | Multi-mode VDSL2/ADSL/2/2+ NIM Annex M |
| Serial WAN interface | |
| SM-X-1T3/E3 | 1-port clear-channel T3/E3 Service Module |
| NIM-1T | 1-port serial high-speed WAN interface card |
| NIM-2T | 2-port serial high-speed WAN interface card |
| NIM-4T | 4-port serial high-speed WAN interface card |
| Async WAN interface | |
| NIM-16A | 16-port Asynchronous Module |
| NIM-24A | 24-port Asynchronous Module |
| SM-X-64A | 64-port Asynchronous Module |
| Cellular Modules | |
| P-5GS6-R16SA-GL* | 5G Sub-6 GHz Pluggable – 5G SA Global |
| P-LTEA7-NA* | CAT7 LTE Advanced Pluggable - North America |
| P-LTEA7-EAL* | CAT7 LTE Advanced Pluggable - EMEA, APAC, and LATAM |
| P-LTEA7-JP* | CAT7 LTE Advanced Pluggable - Japan |
| NIM Carrier Adapter Card | |
| C-SM-NIM-ADPT | Single-wide 2x NIM carrier module in SM-X form factor |
*Only Cellular Modules are supported on C8355-G2
Software management
The minimum Cisco IOS XE release versions for the Cisco 8300 Series Secure Routers are listed below:
| Device OS | Cisco Catalyst SD-WAN Manager | |
|---|---|---|
| Cisco C8375-E-G2 | Starting IOS XE 17.15.3 | Starting SD-WAN Release 20.15.3 |
| Cisco C8355-G2 | Starting IOS XE 17.18.1 | Starting SD-WAN Release 20.18.1 |
Cloud management for IOS XE Secure Routers delivers simplified cloud operations by combining Meraki’s ease of use with IOS XE’s scale and rich features. Please review the at-a-glance to learn more.
Ordering information
For a detailed overview of the ordering process, please visit the Cisco 8000 Series Secure Routers Ordering Guide.
Appendix
Safety and compliance
Chassis
The section below lists the safety and compliance information for the Cisco 8300 Series Secure Routers chassis.
| Safety and certifications | EMC and EMI compliance |
|---|---|
|
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