Cisco Router ASR 1000 Series C1-ASR1004/K9 Overview
Cisco Router ASR 1000 Series C1-ASR1004/K9 is a genuine edge and wide-area routing product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco Router ASR 1000 Series family, the C1-ASR1004/K9 unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
This unit follows the original factory specification for the Cisco Router ASR 1000 Series family, covering its intended role without compatibility surprises. Standard mounting, cabling and management practices apply, and it interoperates with surrounding hardware using the same procedures as other Cisco equipment already deployed in the network.
Typical deployments include branch and campus WAN connectivity, service-provider edge and MPLS deployments, and secure remote-site interconnect. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Cisco 1000 Series ASR platform with the ASR1004 model.”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the C1-ASR1004/K9. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise WAN
Branch and campus routing with advanced services.
Service Provider
Edge routing for ISP and MPLS deployments.
Data Center
Interconnect core and aggregation layers reliably.
Buying a Pre-Owned C1-ASR1004/K9
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
C1-ASR1004/K9 Specifications | |
Physical specifications Note: Depth applies to chassis edge-to-edge dimension and does not include protrusions such as card handles, power-supply handles, and cable management brackets. Refer to the applicable hardware installation guide for additional details. | Height: 7 in. (177.8 mm) Width: 17.2 in. (437.4 mm) Depth: 18.15 in. (461.0 mm) Weight: ● 68.7 lb (31.16 kg) (with dual AC power supply, SPA blank covers, Cisco ASR 1000 Series 10-Gbps ESP [ASR1000-ESP10] or ASR 1000 Series 40-Gbps ESP [ASR1000-ESP-40], Cisco ASR 1000 Series Route Processor 1 [RP1] [ASR1000-RP1], two Cisco ASR 1000 Series 10-Gbps SIPs [ASR1000-SIP10] or ASR1000 Series 40-Gbps SIPs [ASR1000-SIP-40], and no SPAs) |
Default memory | 4-GB DRAM RP1 8-GB DRAM RP2 |
Number of SIPs or Ethernet line cards supported | 2 |
Shared port adapters | 8 SPA slots |
Ethernet port adapters | N/A |
Cisco ASR 1000 Series ESP | 1 ESP slot |
Route processor | 1 route-processor slot |
Redundancy | Software: Yes |
Built-in Gigabit Ethernet ports | 0 |
Built-in 10 Gigabit Ethernet port | No |
Network interface module | No |
Cisco ASR 1000 Series | Cisco ASR 1004 |
ESP support | Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10), noncrypto Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10-N), Cisco ASR 1000 Series 20-Gbps ESP (ASR1000-ESP20), and Cisco ASR 1000 Series 40-Gbps ESP (ASR1000-ESP40) |
ESP bandwidth | 10 to 40 Gbps |
ESP memory | Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10) and ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10): 2‑GB DRAM default; 2‑GB DRAM maximum Cisco ASR 1000 Series 20-Gbps ESP (ASR1000-ESP20): 4‑GB DRAM default; 4‑GB DRAM maximum |
SIPs and Ethernet line cards | Supports Cisco ASR 1000 Series 10-Gbps SIP Carrier Card (ASR1000-SIP10), Cisco ASR 1000 Series 40-Gbps SIP Carrier Card (ASR1000-SIP40), and ASR 1000 Fixed Ethernet Line Cards; two 10 GE + twenty 1 GE line cards (ASR1000-2T+20X1GE); and six 10 GE line cards (ASR1000-6TGE) |
Embedded hardware-based encryption | Yes: On Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10) with up to 4 Gbps and on Cisco ASR 1000 Series 20-Gbps ESP (ASR1000-ESP20) with up to 8-Gbps crypto support throughput Note: No support on noncrypto Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10-N) |
Minimum Cisco IOS XE Software release | Cisco IOS XE Software Release 2.1 |
Rack-mounting | Yes: 19-inch |
Wall-mounting | No |
External USB flash memory | 1-GB USB flash-memory support |
Redundant power supply | Same as for Cisco ASR 1002 |
Power input | Same as for Cisco ASR 1002 |
Power consumption | ● Maximum (DC): 1020W ● Maximum (AC): 960W ● Maximum (out): 765W |
Airflow | Front-to-back |
C1-ASR1004/K9 - Deployment Notes
This C1-ASR1004/K9 router serves branch, edge, or WAN-aggregation roles depending on the interface mix and forwarding capacity of the specific SKU. Verify the interface types (GE, 10GE, SFP, WAN), memory, and module slots that this variant provides against your deployment topology.
When planning a refresh, confirm the software feature set (base, advanced, security) applicable to this SKU and the licensed throughput. Our team can confirm software state and hardware revision before dispatch.
Each C1-ASR1004/K9 unit is inspected, tested and verified before leaving our facility, including interface operation, console access, and firmware state. Contact us for volume pricing and staged delivery options.
C1-ASR1004/K9 - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco router is positioned at the WAN edge, branch, or service-provider aggregation point. It provides routing, VPN, QoS and security services, and integrates with Cisco IOS-XE / IOS-XR management.
Deployment guidance: When planning this C1-ASR1004/K9 unit into a network, confirm the software image (IOS/IOS-XE/NX-OS) required, the power and cooling profile, and the upstream/downstream interface types that match your existing infrastructure. For a like-for-like refresh, match the feature set of the units already in service so management and automation behave consistently.
Our Cisco reconditioning process: Every pre-owned Cisco unit at LinkNewNet passes a documented reconditioning flow before dispatch - visual inspection, internal cleaning, firmware verification, port-by-port testing, and configuration reset to factory defaults. This ensures the unit you receive operates reliably and integrates cleanly with your existing Cisco management tools.
Related models in this family: ASR1002-X, ASR1009-X, ASR1013, ASR1001-HX, ASR1002-HX. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
Model code: K9 = Cryptographic (encryption) software feature set - this suffix indicates the feature set, power, or regulatory variant of the C1-ASR1004/K9, which affects software licensing and regional compliance.







