CISCO ISR4221/K9 Router ISR 4000
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ISR4221/K9 Buying Guide
Cisco ISR 4221 Router ISR4221/K9 is listed by YYST Global for buyers looking for CISCO Cisco Router ISR 4000. ISR4221/K9 CISCO enterprise router for WAN edge projects. Contact YYST Global for stock, lead time and quote support. The listed condition is New Factory Sealed. The reference price is US$ 830.00. Contact our sales team to confirm stock, lead time, warranty and configuration before ordering.
- Model: ISR4221/K9
- Brand: CISCO
- Category: Cisco Router ISR 4000
- Condition: New Factory Sealed
- Reference price: US$ 830.00
ISR4221/K9 Overview
ISR4221/K9 is a CISCO enterprise router listed by YYST Global for WAN edge routing, branch connectivity, spare replacement and enterprise routing upgrades. This page is intended for buyers comparing replacement parts, project supply, spare inventory and quote options.
YYST Global helps enterprise customers confirm model information, product category, condition, availability and sourcing route before purchase. For time-sensitive projects, send the model number and required quantity so our sales team can check stock, lead time and compatible alternatives.
Product name: Cisco ISR 4221 Router ISR4221/K9. Category: Cisco Router ISR 4000. Condition: New Factory Sealed.
ISR4221/K9 Specification
| Datasheet series | Cisco 4000 Series Integrated Services Routers |
| Exact model | ISR4221/K9 |
| Product role | Branch integrated services router; confirm performance license, network modules, voice/security options and power |
| Primary validation | aggregate throughput and performance license |
| Procurement check | NIM/SM modules, WAN interfaces, power and rack kit |
| Procurement validation | Confirm exact part number, condition, licenses, accessories, power/airflow option, warranty, stock and lead time before purchase |
| Official datasheet | Cisco 4000 Series ISR official datasheet |
| Parameter | Specification / Value |
|---|---|
| Model Number | Cisco ISR4221/K9 |
| Product Type | Integrated Services Router |
| Performance / Throughput | 35 Mbps (default), upgradable to 75 Mbps with Performance License |
| Architecture | Cisco Unified Computing System (UCS) based multi-core CPU architecture |
| Form Factor | 1 Rack Unit (1U) |
| LAN/WAN Ports | 2 × Integrated 10/100/1000 Mbps RJ-45 Ethernet ports (RJ-45/SFP combo) |
| Network Interface Module (NIM) Slots | 2 |
| Service Module (SM-X) Slots | 1 Internal (shared for future expansion) |
| Integrated Services Card (ISC) Slot | 1 |
| USB Ports | 1 × USB Type A (for storage), 1 × mini-USB console port |
| Console / Auxiliary Ports | 1 × RJ-45 console port, 1 × RJ-45 auxiliary port |
| Default DRAM | 4 GB |
| Maximum DRAM | 8 GB |
| Default Flash Memory | 4 GB |
| Maximum Flash Memory | 8 GB |
| Power Supply | Internal AC power supply (optional DC power version) |
| Maximum Power Consumption | Approximately 45 W (without PoE modules) |
| PoE Capability | Optional via PoE NIM modules |
| Rack Mountable | Yes (1U standard rack mount kit included) |
| Dimensions (H × W × D) | 44.45 × 369.57 × 294.64 mm (1.75 × 14.55 × 11.6 inches) |
| Weight | Approximately 4.5 kg (10 lbs) |
| Operating Temperature | 0 °C to 40 °C |
| Storage Temperature | -40 °C to 70 °C |
| Humidity Range | 5% – 85% (non-condensing) |
| Forwarding Capacity | Up to 50,000 packets per second (approximate) |
| Routing Protocols Supported | Static, RIP, OSPF, EIGRP, BGP, VRRP, Policy-Based Routing |
| Security Features | Zone-Based Firewall, IPsec VPN, SSL VPN, Secure Boot, Control Plane Protection |
| WAN Optimization Support | Cisco WAAS Express (optional) |
| Voice / Collaboration Support | SIP, SRST, DSP modules supported via add-ons |
| Virtualization Capabilities | Supports Cisco NFVIS and virtualized network functions (VNFs) |
| High Availability | Redundant Power Supply (RPS) supported |
| Management Interfaces | CLI (console/SSH), Web UI, SNMP v1/v2/v3, NetFlow, RESTCONF |
| Licensing Model | Feature-based (Security, Performance, Unified Communications, AppX, etc.) |
| Target Use Case | Secure WAN connectivity for branch offices, cloud access, and unified communications integration |
ISR4221/K9 Warranty
 | Low Price Guarantee |  | Quality Assurance |
 | Free CCIE Expert Technical Support |  | Commodity Refund Guarantee |
 | Diversified and Flexible Transportation Services |  | Standard Policy |
ISR4221/K9 FAQ
What is ISR4221/K9?
Cisco ISR 4221 Router ISR4221/K9 is a CISCO Cisco Router ISR 4000 product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What is the datasheet series of ISR4221/K9?
The listed datasheet series for ISR4221/K9 is Cisco 4000 Series Integrated Services Routers. Confirm the exact SKU and hardware revision against the project requirement before ordering.
What is the exact model of ISR4221/K9?
The listed exact model for ISR4221/K9 is ISR4221/K9. Confirm the exact SKU and hardware revision against the project requirement before ordering.
Is ISR4221/K9 available from YYST Global?
YYST Global can help check availability, lead time and configuration for ISR4221/K9. Contact the sales team before ordering to confirm current stock.
What is the price of ISR4221/K9?
The current reference price for ISR4221/K9 is US$ 830.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
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