United States
Name:
C921-4P
- Description:
- 900 SERIES INTEG SVCS ROUTERS
- Rating:
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Added to cart 48 times recently
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- Brand:
- Cisco
- Condition:
- GTIN:
- 889728172110
- Warranty:
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3 - List Price:
-
$997.00
- Price:
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$612.00
39% off
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Delivery Timelines
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Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
C921-4P
900 SERIES INTEG SVCS ROUTERS
$997.00
$612.00
30 in Global Warehouse
$612.00
39% off
TRUSTED, TRIED, PROVEN
C921-4P Overview
C921-4P is a high-performance integrated services router, designed with a fixed architecture that delivers reliable throughput and robust security tailored for enterprise branch deployments. Its power options include an AC power supply, while the device offers a single WAN interface and four dedicated LAN ports with Gigabit Ethernet speeds, ensuring efficient network connectivity and high redundancy for business-critical applications.
C921-4P supports advanced VPN features including IPSec and SSL VPNs, and comes equipped with integrated voice and video services that streamline converged communications. Built as a fully managed, rack-mount solution with proven firewall capabilities and quality of service (QoS) features, this router excels in supporting enterprise use cases that demand modular performance, comprehensive remote management (via SSH, Telnet, and SNMP), and high availability.
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C921-4P Specifications
| Product Type | Integrated Services Router |
| VPN Support | IPSec, SSL VPN |
| Power Source | AC Power Supply |
| Routing Protocols | OSPF, EIGRP, RIP, BGP, Static Routing |
| Broadband | LTE |
| Architecture | Fixed |
| WAN Configuration | WAN |
| WAN Ports | 1 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100/1000 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IPv4, IPv6 |
| Remote Management | SSH, Telnet, SNMP |
| Compliance Standards | IEEE 802.1x |
| Wireless Support | No |
| Speed/Capacity | Gigabit |
| Firewall Features | Yes |
| Features | VPN, Firewall, QoS, PoE |
| Use Case | Enterprise |
| Management | Managed |
| Form Factor | Rack-mount |
| Integrated Services | Voice, Video |
| High Availability Support | Supported |
| Safety | UL, CE |
| EMC | FCC, CE |
| Telecom | TIA/EIA |
| Throughput Capacity | 250 Mbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection |
| Expansion Slots | N/A |
| Modular Slots Available | N/A |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 512 MB |
| Flash Memory | 256 MB |
| Interface Ports | RJ-45, SFP |
| Power | 45 Watt |
| Device Type | Router |
| Product Name | Cisco C921-4P Integrated Services Router |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 16.5 inches |
| Weight | 8 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Modular | Modular | Modular | Modular |
| Broadband | LTE | N/A | N/A | Fiber Optic / DSL | LTE |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | IEEE 802.1x | FCC, CE | FCC, CE, RoHS | FCC, CE, RoHS | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 16.5 inches | 17 inches | 18 inches | 15 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | FCC, CE | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | N/A | NIM, SFP+ | N/A | N/A | NIM |
| Features | VPN, Firewall, QoS, PoE | VPN, Firewall, IPv6 Compatible, High Availability | VPN, IPv6 Compatible, Firewall | VPN, Firewall, Integrated Services, Redundancy | VPN, IPv6 Compatible, Firewall, Redundancy |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 512 MB | 512 MB | 256 MB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Video | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice, Video | Voice, Video |
| Interface Ports | RJ-45, SFP | RJ-45, SFP, Combo Ports | RJ-45, SFP | RJ-45, SFP | RJ-45, SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 4 GB | 2 GB | 1 GB | 2 GB |
| Modular Slots Available | N/A | 3+ Slots | N/A | N/A | 3+ Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6, MPLS | IPv4, IPv6 | IPv4, IPv6 | IPv4, IPv6, MPLS |
| Power | 45 Watt | 150 W | 65 W | 65 Watt | 50 Watt |
| Power Source | AC Power Supply | AC Power Supply / Redundant | AC/DC Power Supply with Redundancy | AC Power Supply / Redundant | Redundant AC/DC Power Supply |
| Product Name | Cisco C921-4P Integrated Services Router | C931J-4P Enterprise Modular Router | C926-4P Enterprise Router | C941J-4P | C921-4PLTEAS |
| Product Type | Integrated Services Router | Enterprise Router | Enterprise Router | Enterprise Router | Integrated Services Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP | SSH, SNMP, Telnet | SSH, Telnet, SNMP | SSH, HTTPS, SNMP | CLI, SNMP, WebUI |
| Routing Protocols | OSPF, EIGRP, RIP, BGP, Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | UL, CE | N/A | IEC 60950 | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | Yes | No | Yes | Yes |
| Telecom | TIA/EIA | N/A | N/A | N/A | N/A |
| Throughput Capacity | 250 Mbps | 2.5 Gbps | 1 Gbps | 1 Gbps | 1 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec, SSL VPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 1 WAN | 2 WAN | 2 WAN | 4 WAN | 1 WAN (Fixed) / 1 LTE |
| Weight | 8 lbs | 11 lbs | 15 lbs | 6 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.5 inches | 19 inches | 17 inches | 17 inches | N/A |
| Wireless Support | No | No | No | No | No |
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Questions & Answers
Q
What is the Cisco C921-4P 900 Series Integrated Services Router?
A
The Cisco C921-4P is a compact, high-performance branch router offering integrated security, multilayer switching, and Power over Ethernet (PoE) connectivity for small to midsize offices.
Q
Which connectivity options does the C921-4P support?
A
It supports four Gigabit Ethernet LAN ports with PoE+, one Gigabit Ethernet WAN port, USB, and optional LTE/4G cellular backup modules for reliable branch connectivity.
Q
What is the maximum throughput of the C921-4P router?
A
The router delivers up to 85 Mbps of aggregate throughput, suitable for typical branch office traffic with integrated firewall and VPN services enabled.
Q
Does the C921-4P provide PoE capabilities?
A
Yes. The four integrated Gigabit Ethernet LAN ports each deliver up to 30 W of PoE+ (802.3at) to power IP phones, wireless access points, and security cameras.
Q
What security features are built into the C921-4P?
A
The router includes Cisco IOS Firewall, Zone-Based Policy Firewall, intrusion prevention, URL filtering, and advanced malware protection for complete branch security.
Q
Which VPN protocols are supported by the C921-4P?
A
It supports IPsec VPN, SSL VPN, GRE, DMVPN, and FlexVPN, enabling secure site-to-site and remote-access connections.
Q
How many VLANs and subinterfaces can the C921-4P handle?
A
The router supports up to 50 VLAN interfaces and 50 subinterfaces, allowing granular traffic segmentation and QoS configurations.
Q
What power options and redundancy does the C921-4P offer?
A
It includes an internal AC power supply with voltage auto-sensing and supports dual power supplies for high availability in critical deployments.
Q
Which WAN modules are compatible with the C921-4P?
A
Compatible WAN modules include HWIC-4G, VWIC2-2MFT-T1/E1, and EHWIC-4G-LTE for diverse cellular and T1/E1 connectivity requirements.
Q
How do I set up and configure the C921-4P router?
A
Use Cisco Configuration Professional or CLI via console/SSH for step-by-step setup. Plug in WAN/LAN cables, power on, then follow the guided wizard or enter IOS commands.
Q
What management and monitoring tools are available?
A
Manage centrally with Cisco DNA Center, Cisco Prime Infrastructure, or Cisco Meraki Dashboard. On-box SNMP, NetFlow, and Syslog support ensure full visibility.
Q
Does the C921-4P run Cisco IOS Software?
A
Yes. It runs Cisco IOS XE, offering modular software for advanced routing, security, application optimization, and programmability.
Q
What are the typical use cases for the C921-4P?
A
Ideal for small branch offices, retail stores, and healthcare clinics that require secure routing, PoE to endpoints, and reliable WAN failover.
Q
What is the warranty and support policy for the C921-4P?
A
Cisco provides a limited lifetime hardware warranty, with optional solution support and software updates through Cisco SMARTnet contracts.
Q
How does LTE/4G failover work on the C921-4P?
A
When primary WAN fails, the integrated LTE/4G module automatically establishes a cellular link, maintaining continuous connectivity without manual intervention.
Q
Where can I purchase the Cisco C921-4P 900 Series router?
A
The C921-4P is available through authorized Cisco resellers, partners, and distributors. Contact your local Cisco representative for pricing and lead times.
