We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular silver server power supply module with rear fan grille and side handle

E-buy

E-buy PWR-4320-AC server power supply for Cisco ISR4321 341-0701-03

SKU CH-S51C-730BP

A replacement AC power supply for Cisco ISR4321 and 4320 routers, guaranteed OEM-compatible with part number 341-0701-03

  • Product typeAC Adapter
  • Replacement AC power supply for Cisco ISR4321 routers
  • 12-month warranty with 60-day free replacement or refund
  • 100% OEM compatible — meets original device specifications
  • Type AC adapter designed for PWR-4320-AC part 341-0701-03
  • New condition ensures reliable operation from first install

Replacement AC power supply for Cisco ISR 4321

This E-buy unit is a direct replacement AC adapter for the Cisco ISR 4321 router carrying part number 341-0701-03. It is built to match the original PWR-4320-AC specifications so the router powers up without configuration changes. The supply is sold new and carries a 12-month warranty with a 60-day free replacement or refund period. It targets network administrators who need a spare or a field swap for a failed original module.

Capacity and headroom for the 4320 series

The adapter delivers the rated output the ISR 4321 requires for normal routing, security and voice services. It handles the full feature set of the 4320 platform without derating. Headroom is limited to the original design envelope; the supply will not support chassis models that draw more power than the 4321 specification. Buyers who need redundant or higher-wattage modules for larger chassis should look elsewhere.

Upgrading from a failed or missing original

This unit replaces a dead, lost or end-of-life Cisco PWR-4320-AC module. The jump is worth it when the original supply has failed and a compatible spare restores service immediately. It is not a capacity upgrade — it restores the same 341-0701-03 rating — so it does not add headroom for future expansion. If the installation calls for dual supplies or a higher-power chassis, this single adapter does not meet that need.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 93% of the 3,798 comparable items (median $131.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeAC Adapter

Questions about this item

Will the PWR-4320-AC unit power a Cisco ISR 4321 router that currently uses the 341-0701-03 part?

Yes, this replacement AC supply is built to the PWR-4320-AC specification and matches the 341-0701-03 part number for the ISR 4321 platform.

How can I confirm the supply is operating correctly once installed in the router?

The router’s front-panel power LED will show green and the system logs will report the supply as present and healthy.

Does the package include a mains lead or only the supply module itself?

Only the AC supply module is included; a compatible IEC C13 mains cable must be sourced separately.

More in Server & Hot-Plug PSUs

Similar items