# Cisco N540-PWR400-A= 400W AC Power Supply Unit for Network Convergence System 540

**URL:** https://aio.lv/en/product--cisco-n540-pwr400-a--11154319
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** Cisco
**Manufacturer code:** N540-PWR400-A=
**EAN:** 0889728062954
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 035.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 855.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cisco-n540-pwr400-a--11154319

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Cisco N540-PWR400-A= is a 400W AC power supply unit designed for the Network Convergence System 540 router series. This hot-plug, redundant module supports an input voltage range of 90-265V, ensuring reliable power delivery for critical network infrastructure. It is an essential spare part for maintaining system uptime and operational stability in enterprise networking environments.

## Long description

The Cisco N540-PWR400-A= is a high-performance 400W AC power supply unit specifically engineered for the Cisco Network Convergence System 540 router series. This module provides a reliable and stable power source, essential for maintaining the continuous operation of critical network infrastructure in enterprise environments. Designed with hot-plug and redundancy capabilities, it allows for seamless maintenance and replacement without interrupting network services.
Advantages
This power supply unit offers significant operational benefits by supporting a wide input voltage range, which ensures compatibility with various power grid standards. Its hot-plug design facilitates rapid replacement, minimizing downtime during hardware maintenance or unexpected power module failures. By providing redundant power, it enhances the overall availability and reliability of the network system, protecting against single points of failure in power delivery.
Suitable for
Enterprise-grade network convergence systems
Data centers requiring high availability
Critical infrastructure networking environments
Cisco Network Convergence System 540 series routers
When it may not be suitable
This power supply is exclusively designed for the Cisco Network Convergence System 540 series and is not compatible with other router models or networking hardware. It is not intended for use in non-standard electrical environments that fall outside the specified input voltage range.
Key specifications
Power output: 400 Watts
Input voltage range: 90-265V AC
Form factor: Hot-plug module
Compatibility: Cisco Network Convergence System 540 series
Functionality: Redundant power support
How to use
To install the power supply, ensure the router is powered on if the system supports hot-swapping. Slide the unit into the designated power supply bay on the rear of the Cisco NCS 540 chassis until it is securely seated and the locking mechanism engages. Connect the appropriate AC power cable to the input port on the module. The system will automatically detect the new power source and begin distributing power to the router components.
What to consider before purchase
Verify compatibility with your specific Cisco NCS 540 model
Ensure your rack power distribution unit supports the required AC input
Check if your current configuration requires redundant power modules
Usage recommendations
For optimal system stability, it is recommended to install redundant power supplies in separate power circuits to ensure continuous operation even during a localized power failure. Always use genuine Cisco power cables to ensure safe and reliable electrical connectivity.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Grey |
| Compatible products | NCS 540 |
| Brand compatibility | Cisco |
| Device compatibility | Router |
| Product type | Power supply unit (PSU) |

## FAQ

### How much does the Cisco N540-PWR400-A= 400W Power Supply Unit cost, and is it available for purchase?

The price is 1,035.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Cisco products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Cisco service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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