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Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
$4,395.00
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CISCO2821-DC
2821 w/ DC PWR,2GE,4HWIC,3PVDM,1NME-X,2AIM,IP BASE,128F/512D
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
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.
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| 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 |
| 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 |
| Device Type | Router | Router | Router | Router | Router |
| 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 |
| 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 |
| 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 |
| Stacking Capability | No | No | No | No | No |
| 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 |
| Wireless Support | No | No | No | No | No |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
DC powered model fit perfectly in our data center setup. Performance has been stable and predictable.
Reliable routing performance with DC power support. No issues in continuous operation.
Cisco build quality is evident. Runs smoothly in a DC powered environment.
Good choice for locations requiring DC power. Consistent uptime so far.
Handled routing and voice workloads well. Power configuration was straightforward.
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.
The CISCO2821-DC uses 48–60 V DC input power and includes an internal DC power supply for high-availability branch environments.
This router provides 2 fixed Gigabit Ethernet ports and supports additional interfaces through its 4 HWIC slots.
It supports up to 4 HWIC modules and one NME-X module for enhanced WAN connectivity, voice, security, or storage interfaces.
Packet Voice Digital Signal Processors (PVDMs) enable voice and video services; the CISCO2821-DC includes 3 PVDM slots for media processing.
IP Base licensing delivers advanced IPv4 routing, dynamic path selection, basic security, QoS, and MPLS VPN capabilities for enterprise networks.
Yes, the ISR 2821-DC supports Cisco IOS Firewall, IPSec VPN, DMVPN, and other Cisco security features under the IP Base license.
The router ships with 512 MB of DRAM (expandable to 2 GB) and 128 MB of flash memory for OS and feature storage.
Under typical mixed services, the CISCO2821-DC delivers up to 30 Mbps of aggregate throughput, with higher speeds using performance licenses.
No, the CISCO2821-DC does not include PoE; PoE support requires a separate ISR model or external midspan solutions.
It offers console, auxiliary, USB, and out-of-band Ethernet management ports plus full CLI/GUI support via Cisco IOS and Cisco Configuration Professional.
The CISCO2821-DC operates reliably between 0 °C and 40 °C (32 °F to 104 °F) and conforms to standard telecom environmental requirements.
Use the USB port, TFTP, FTP or USB flash to load a new IOS image and apply the Cisco IOS Software Activation commands to enable additional features.
Cisco provides a one-year limited hardware warranty and access to optional Cisco SMARTnet or Cisco Solution Support for 24×7 coverage.
Yes, with its PVDM slots and support for Cisco Unified Communications features, it’s ideal for small to medium branch office voice and video.
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