C1121X-8P – 8×LAN PoE+ Ports – 2×WAN (1×SFP Combo) – ISR Router
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C1121X-8P Description
Cisco C1121X-8P Integrated Services Router (ISR 1000 Series) is a high-performance, fanless branch router designed for modern business networks. Also called the C1121X 8-port router, it features 8GB memory, 8 Gigabit LAN ports, dual WAN uplinks (including Combo SFP), and optional PoE/PoE+ support for powering edge devices. With robust Cisco IOS XE software, full SD-WAN capabilities, and advanced security, the C1121X-8P provides scalable, secure, and reliable connectivity for small to midsize branches, retail sites, and enterprise edge deployments. Its silent, compact form factor is ideal for space-constrained or noise-sensitive environments.
Product Highlights
Quick Specs
|
Parameter |
C1121X-8P |
|---|---|
|
WAN Ports |
2 (1 × RJ-45, 1 × Combo SFP/RJ-45) |
|
LAN Ports |
8 × Gigabit Ethernet |
|
PoE Support |
4 PoE / 2 PoE+ (option) |
|
Memory |
8GB DRAM / 8GB Flash |
|
Max Throughput |
1673 Mbps (IPv4 IMIX) |
|
Dimensions (HxWxD) |
1.65 x 10.8 x 7.85 in |
|
Weight |
3.48 lb (1.58 kg) |
|
Power Supply |
66W AC Adapter (max) |
|
Operating Temp |
0° to 40°C |
|
Console Ports |
RJ-45, Micro-USB |
Key Features
Combines routing and switching with 8 GE LAN ports, supporting business devices like PCs, VoIP phones, and wireless APs on a single platform for simplified branch deployments.
Features both RJ-45 and Combo SFP/RJ-45 uplinks, providing flexible ISP connectivity and seamless failover for continuous, reliable network access in hybrid or fiber/copper environments.
Supports advanced security features including IPsec VPN, zone-based firewall, segmentation, and is fully SD-WAN capable for secure, centralized, and scalable branch networking.
Powers up to 4 PoE or 2 PoE+ devices—such as IP cameras, access points, or phones—directly from the router, streamlining installation and reducing cabling complexity.
Fanless hardware design ensures whisper-quiet operation and low power consumption, perfect for office, retail, healthcare, and noise-sensitive environments.
Standard 8GB DRAM and flash support larger route tables, SD-WAN overlays, and advanced Cisco IOS XE features, making it ideal for growing business and future needs.
Application Scenarios
Secure, high-speed routing and PoE switching for distributed offices.
Reliable SD-WAN and VPN for multi-site connectivity, POS, and surveillance.
Fanless design and flexible mounting for classrooms, kiosks, and open offices.
Product Comparison
|
Parameter |
C1121X-8P | ||
|---|---|---|---|
|
WAN Ports |
2 (1 SFP combo) |
2 (1 SFP combo) |
2 (1 SFP combo) |
|
LAN Ports |
8 × GE |
8 × GE |
8 × GE |
|
PoE Support |
4 PoE / 2 PoE+ opt. |
4 PoE / 2 PoE+ opt. |
4 PoE / 2 PoE+ opt. |
|
Memory (DRAM/Flash) |
8GB / 8GB |
4GB / 4GB |
4GB / 4GB |
|
Max IPv4 Throughput |
1673 Mbps |
1673 Mbps |
1673 Mbps |
|
SD-WAN IMIX Throughput |
465 Mbps |
465 Mbps |
465 Mbps |
|
Encrypted Throughput (IMIX) |
468 Mbps |
468 Mbps |
468 Mbps |
|
Console Ports |
RJ-45, Micro-USB |
RJ-45, Micro-USB |
RJ-45, Micro-USB |
|
Dimensions (HxWxD) |
1.65×10.8×7.85 in |
1.75×12.7×9.015 in |
1.65×10.8×7.85 in |
|
Weight |
1.58 kg |
1.98 kg |
1.58 kg |
|
Memory Upgrade |
Yes (8GB standard) |
No (4GB standard) |
No (4GB standard) |
C1121X-8P Rear Panel
|
1 |
Reset button |
2 |
Power switch |
|
3 |
4-pin power connector |
4 |
Ethernet switch |
|
5 |
RJ-45 |
6 |
GE WAN 0/0/0 -RJ45 |
|
7 |
GE WAN 0/0/0 -SFP |
8 |
Micro-USB console |
|
9 |
USB 3.0 |
10 |
Kensington lock slot |
|
11 |
Grounding |
Specifications
Packaging weight and dimensions included:| Weight | 6.86 kg |
|---|---|
| Dimensions | 51 × 34 × 15.5 cm |
| Parameter | Detail | Parameter | Detail |
|---|---|---|---|
| Product Model | C1121X-8P | Product Series | Cisco ISR 1000 Series |
| WAN Ports | 2 (1 × RJ-45, 1 × Combo SFP/RJ-45) | LAN Ports | 8 × 10/100/1000 Mbps Gigabit Ethernet |
| PoE Support | Optional, up to 4 PoE / 2 PoE+ (with 150W PSU) | Console Ports | RJ-45, Micro-USB |
| USB Ports | 1 × USB 3.0 Type-A | Memory (DRAM/Flash) | 8 GB / 8 GB |
| Max Platform Throughput (IPv4 IMIX) | 1673 Mbps | SD-WAN IPsec Throughput (IMIX) | 465 Mbps |
| Encrypted Throughput (IMIX, non-SD-WAN) | 468 Mbps | Max NAT Sessions | 100,000 |
| Max VRFs | 1,000 | Number of IPsec Tunnels | 100 |
| Number of ACLs | 4,000 | Number of IPv4 ACEs | 10,000 |
| Number of IPv4 Routes | 800,000 | Number of IPv6 Routes | 700,000 |
| SD-WAN Overlay Tunnels | 200 | Fanless | Yes |
| Software | Cisco IOS XE (16.9.1 or later) | Routing Protocols | OSPF, BGP, EIGRP, RIP, Static, VRF-Lite |
| Advanced Features | SD-WAN, VPN, Zone-based Firewall, DMVPN, MPLS, AVC, NBAR2 | Management | WebUI, CLI, SNMP, vManage, DNA Center |
| Smart Licensing | Supported | LED Indicators | Status, VPN, PoE, LAN/WAN, USB, Console |
| Power Supply | External AC Adapter: 100–240V AC, 66W (standard); 150W (PoE) | Max Power Consumption | 19.2W (without PoE) |
| PoE Output Voltage | -53.5 VDC (with PoE PSU) | Dimensions (HxWxD) | 1.65 × 10.8 × 7.85 in (41.9 × 274.3 × 199.4 mm) |
| Weight | 3.48 lb (1.58 kg) | Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Non-Operating Temperature | -40°C to +70°C (-40°F to 158°F) | Operating Humidity | 10% to 85% RH (non-condensing) |
| Altitude | 0 to 10,000 ft (operating) | Mounting Options | Desktop, rack-mount, wall-mount |
| Compliance & Safety | UL 60950-1, EN 60950-1, FCC, CE, RoHS | EMC Certifications | EN55022/CISPR22, CFR 47 Part 15, ICES003, VCCI, EN300-386 |
| Rack Mount Kit | Optional (ACS-1100-RM-19=) | USB Console Driver OS Support | Windows, Mac OS X, Linux |
| Compatible SFP Modules | GLC-LH-SM, GLC-SX-MM, GLC-ZX-SM, GLC-TE, GLC-T, etc. | Redundancy | No PSU redundancy |
| Optional LTE/5G | No (Non-LTE model) | Wi-Fi | No |
Get More Information
Need pricing, stock, or shipping details for the C1121X-8P ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.
Quality Certifications
Customer Reviews
Questions & Answers
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What is C1121X-8P used for?
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What does X mean on C1121X-8P?
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Does C1121X-8P have LTE?
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How many LAN ports does C1121X-8P have?
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What SD-WAN throughput applies to C1121X-8P?
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How is C1121X-8P different from C1111X-8P?
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What power detail matters for C1121X-8P PoE?
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When does C1121X-8P make sense instead of C1121-4P?
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