United States$5,000,000+
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D
David Armstrong
5
DC powered model fit perfectly in our data center setup. Performance has been stable and predictable.
CISCO2821-DC
2821 w/ DC PWR,2GE,4HWIC,3PVDM,1NME-X,2AIM,IP BASE,128F/512D
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Name:
CISCO2821-DC
- Description:
- 2821 w/ DC PWR,2GE,4HWIC,3PVDM,1NME-X,2AIM,IP BASE,128F/512D
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 746320911731
- Condition:
- Warranty:
- 3
- List Price:
$4,395.00
- Price:
$1,994.0054.6% off
Quantity:
1
Business price:
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CISCO2821-DC Overview
CISCO2821-DC is engineered with a fixed architecture featuring a DC power supply and dual WAN interfaces alongside integrated 10/100 LAN connectivity. It delivers robust VPN support through IPSec, high-performance routing protocols, and built‑in firewall security, making it ideal for enterprise-grade network infrastructures without unnecessary frills.
CISCO2821-DC integrates voice and video services while providing modular expansion via dual EHWIC slots, ensuring scalability and redundancy. Optimized for throughput and QoS, it meets demanding use cases in mission‑critical environments, offering reliable remote management, compliance with FCC/CE/UL standards, and high‑availability support.
CISCO2821-DC price is $1,994.00, a 54.6% saving from the Cisco list price of $4,395.00. CISCO2821-DC is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CISCO2821-DC for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
CISCO2821-DC Specifications
- Form Factor
- Rack-mount
- Flash Memory
- 128 MB
- Memory
- 512 MB
- Ethernet Technology
- 10/100
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Power Source
- DC Power Supply
- Product Type
- Enterprise Router
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Architecture
- Fixed
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Remote Management
- Telnet, SSH, SNMP
- Wireless Support
- No
- Firewall Features
- Yes
- Management
- Managed
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- QoS Features
- Supported
- Modular Slots Available
- 2 Slots
- Stacking Capability
- No
- 5G Support
- No
- Interface Ports
- RJ-45
- Device Type
- Router
- High Availability Support
- Supported
- Expansion Slots
- EHWIC
- Broadband
- N/A
- Features
- VPN / IPv6 Compatible / Firewall
- Use Case
- Enterprise
- Integrated Services
- Voice / Video
- LAN Ports
- 4 LAN Ports
- Throughput Capacity
- 0.075 Gbps
- Power
- 55 W
- VPN Support
- IPSec
- Compliance Standards
- FCC, CE, UL
- Speed/Capacity
- Gigabit
- Built-in Security Features
- Firewall
- Network Protocols
- IPv4, IPv6, OSPF, EIGRP, RIP, BGP, Static Routing
- Product Name
- Cisco 2821-DC Integrated Services Router
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 CISCO2821-DC |  C2821-VSEC-SRST/K9 |  CISCO2851-HSEC/K9 |  C2801-10UC/K9 |  C2811-4SHDSL/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed with Modular Expansion | Modular | Fixed | Fixed |
| Broadband | N/A | N/A | N/A | N/A | DSL |
| Built-in Security Features | Firewall | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / VPN | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC, CE, UL | RoHS, FCC, CE | FCC, CE | FCC / CE / RoHS | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | N/A | 10.75 inches | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | FCC, CE | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | 2 WIC / 2 NM |
| Features | VPN / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN, Integrated DSL, Modular Expansion, VOIP, Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Desktop | Rack-mount |
| Height | N/A | N/A | 1.73 inches | N/A | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video | Voice | Voice / Video | Voice / Video | Voice, Data, Security |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | Modular LAN | N/A | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 512 MB | 256 MB | 512 MB | 128 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4, IPv6, OSPF, EIGRP, RIP, BGP, Static Routing | IPv4, IPv6, MPLS, PPP | IPv4, IPv6 | IP / IPX / IPv6 | IPv4, IPv6, MPLS, VPN |
| Power | 55 W | 85 Watt | 80 W | 65 Watt | 130 Watts |
| Power Source | DC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply | AC Power Supply |
| Product Name | Cisco 2821-DC Integrated Services Router | Cisco 2821 Integrated Services Router VSEC SRST | Cisco 2851 Integrated Services Router - High Security (CISCO2851-HSEC/K9) | Cisco 2801 Integrated Services Router | Cisco C2811-4SHDSL/K9 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Integrated Services Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP | CLI, SNMP, Telnet, SSH | Telnet, SSH, SNMP, HTTP/HTTPS | Telnet / SSH / SNMP | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | N/A | N/A | Fast Ethernet |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.075 Gbps | 0.075 Gbps | 0.025 Gbps | 0.075 Gbps | 28 Mbps |
| Use Case | Enterprise | Enterprise | Enterprise | Business | Enterprise, Business |
| VPN Support | IPSec | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 4 WAN |
| Weight | N/A | N/A | 12 lbs | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | 18 inches | N/A | N/A |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
G
George Whitman
4
Reliable routing performance with DC power support. No issues in continuous operation.
L
Leonard Price
5
Cisco build quality is evident. Runs smoothly in a DC powered environment.
V
Victor Harrington
3
Good choice for locations requiring DC power. Consistent uptime so far.
D
Douglas Everett
4
Handled routing and voice workloads well. Power configuration was straightforward.
Questions & Answers
What is the Cisco 2821-DC router?
The Cisco 2821-DC is a branch office ISR with DC power, 2 Gigabit Ethernet ports, 4 HWIC slots, 3 PVDMs, NME-X expansion, dual AIMs and IP Base licensing for advanced routing and security.
Which power source does the CISCO2821-DC use?
The CISCO2821-DC uses 48–60 V DC input power and includes an internal DC power supply for high-availability branch environments.
How many Gigabit Ethernet interfaces are available?
This router provides 2 fixed Gigabit Ethernet ports and supports additional interfaces through its 4 HWIC slots.
What expansion modules are supported?
It supports up to 4 HWIC modules and one NME-X module for enhanced WAN connectivity, voice, security, or storage interfaces.