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A903-RSP1B-55 Cisco ASR 903 Route Switch Processor


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The Cisco A903-RSP1B-55 Route Switch Processor is a stellar choice for organizations looking to bolster their network infrastructure. Its powerful 4 GB DRAM enhances the device’s ability to manage and process data with heightened efficiency. The 55 Gbps maximum interface throughput makes it an excellent fit for handling large amounts of traffic, minimizing congestion and ensuring smooth data transmission.

The 65 Mpps performance for both IPv4 and IPv6 reflects its ability to keep pace with modern networking protocols, offering robust and future-proof operation. This makes it suitable for a variety of applications and scalable for growing business needs. The compatibility with different modules enables flexibility in network design, allowing for a tailored approach to match specific organizational requirements.

Moreover, the A903-RSP1B-55 prioritizes energy efficiency with a moderate power consumption of 210W, which aids in managing operational costs without compromising on performance. With Cisco’s reputation for reliability, investing in this route switch processor guarantees a secure and dependable network backbone.

In an age where network demands are continually escalating, the Cisco A903-RSP1B-55 offers the resilience and adaptability needed to maintain a competitive edge. It is an investment that not only enhances current network performance but also positions an organization well for future expansions and technological advancements.

Cisco A903-RSP1B-55 is the Cisco ASR 903 Route Switch Processor. Cisco ASR 900 Series RSP modules contain separate control plane and data plane components. These include the main control plane CPU for the Cisco IOS Software operating system and platform control software. The data-plane packet processing and traffic management is performed by the Carrier Ethernet application-specific integrated circuit (ASIC).

Quick Specs

Figure 1 shows the appearance of A903-RSP1B-55.

Table 1 shows the quick specs.

Part Number


Power consumption of chassis with 2 power supplies, 1 fan tray, and 1 RSP


RSP memory (DRAM)

4 GB

Flash memory (storage)

2 GB

Service scale


Maximum interface throughput

55 Gbps

IP version 4 performance

65 Mpps

IP version 6 performance

65 Mpps

Shipment package size in inches (L x W x H)

14.38 x 14.38 x 6.25

Shipment package weight

6.2 lbs.

Module Compatibility

Table 2 shows the recommended models.



Ethernet interface module compatibility




TDM and ATM interface module compatibility




Compare to Similar Items

Table 3 shows the comparison.

Part Number



Power consumption of chassis with 2 power supplies, 1 fan tray, and 1 RSP



RSP memory (DRAM)

2 GB

4 GB

Flash memory (storage)

2 GB

2 GB

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Affordability and Quality with Northland Systems

Purchasing the A903-RSP1B-55 Cisco ASR 903 Route Switch Processor from Northland Systems provides an unbeatable blend of high-quality networking equipment at wholesale prices. With a steadfast commitment to affordability, you can trust in our 100% Low Price Guarantee, ensuring that you receive the best deal without compromising quality.

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Free expert CCIE technical support accompanies your purchase of the A903-RSP1B-55 Cisco ASR 903 Route Switch Processor. Accessible through various channels, our technical support adds immense value, enhancing the customer experience by providing expert guidance without additional costs.

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Every product, including the Cisco Router ASR 900 series, is genuine and available in conditions ranging from “New Sealed” to “Used / Refurbished.” These items are thoroughly tested by Cisco-certified engineers, ensuring reliability and top-notch performance.

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Established Reliability and Exceptional Discounts

Since 1997, Northland Systems has been a credible name in the networking equipment industry, offering substantial discounts on products like Routers > Cisco Routers. Our history indicates a profound understanding of customer needs and market dynamics, matched with economic efficiency.

Choosing Pre-owned Hardware Advantages

Opting for pre-owned hardware, such as the A903-RSP1B-55 Cisco ASR 903 Route Switch Processor, presents numerous benefits including:

  • Significant cost savings
  • Quick delivery times
  • Fully backed warranties
  • Environmental sustainability by reusing equipment
  • Availability of legacy parts for continued network stability

By selecting Northland Systems for your network equipment needs, you benefit from our dedication to providing high-caliber products like the Cisco Router ASR 900 series, along with our commitment to exemplary customer service and support.

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Cisco A903-RSP1B-55 Route Switch Processor, ideal for large-scale networks

A903-RSP1B-55 Cisco ASR 903 Route Switch Processor

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