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PWR-4220-AC
Cisco PWR-4220-AC 90W AC Power Supply for ISR 4221 and ISR 4...
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PWR-4220-AC is a 90W AC external power supply for Cisco ISR 4221 and ISR 4221X routers. The unit uses 100-240V AC input and feeds an ISR 4200 Series chassis through the rear power input connector. Cisco ISR 4221 power supply replacement work should match the 90W external unit on the chassis label. The ISR 4221 and ISR 4221X use external AC only, with no redundant power supply bay and no PoE supply option. ISR 4221 chassis power is non-redundant, and replacement planning should cover the whole router during power removal. PWR-4320-POE-AC serves ISR 4320 PoE builds instead; it is not a substitute for an ISR 4221 power supply.
PWR-4220-AC price is $184.17. PWR-4220-AC is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for PWR-4220-AC for additional pricing. Browse the full Cisco ISR 4000 Power Supplies series or explore all Cisco products.
90W maximum AC power fits the Cisco 4221(X) power layout and keeps circuit sizing in the 1.5A to 0.6A input-current range. 50-60 Hz input matches standard branch circuits, and the power input tolerance is 90-264V AC. PWR-4220-AC is an external unit, so the router has no second supply bay and no power-supply redundancy. The external unit uses either 37 x 73 x 152 mm or 36.5 x 67 x 155 mm dimensions, so bracket and shelf space should leave room for either hardware build. The ISR 4221 chassis runs from 0°C to 40°C in normal operation. Chassis airflow moves from the I/O side to the bezel side, so rack placement should keep the rear input side clear.
PWR-4220-AC is available as new sealed or certified refurbished. Certified refurbished units are inspected and bench-tested in a compatible host or on a load tester; housing, latch and connector pins are inspected, power-on is verified, and output is held at rated voltage under load. Order the 90W AC external unit for failed ISR 4221 and ISR 4221X power bricks. New units carry up to a 3-year extended warranty, certified refurbished units carry up to 1 year, and every condition has 30-day returns. UK, EU, US and MEA stock supports PO, Net-30 for government, and RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Rated Output | 90W |
Input | AC, 100-240V |
Fits | ISR 4221 / ISR 4221X |
Hot-Swap | No dual hot-swap bay |
Lifecycle Status | Cisco sales ended 7 November 2023 |
The router has a failed external brick on an ISR 4221 or ISR 4221X. Match the chassis to the 90W AC external supply and plan a full power interruption, because the 4221 platform has no second supply bay. Specify the base power supply PID before the PO.
A sparing pool covers ISR 4221 routers across remote sites. Stock the 90W AC external unit for 100-240V AC rooms and keep one power cord path per router. Separate ISR 4321 PoE builds from this pool because they use a different power supply family.
An ISR 4221 site stays in service after hardware sale ended. Replacement power should match the existing external AC unit while lifecycle planning tracks Cisco service through 31 January 2030 for the platform. Before the PO, confirm the chassis PID and the 90W power label.
ISR 4321 routers
ISR 4321 PoE configurations use PWR-4320-POE-AC, not the ISR 4221 external 90W unit. Match the 4321 chassis label before ordering a router power supply.
PoE endpoint power
ISR 4221 has no PoE supply option and no endpoint PoE budget. ISR 4321 PoE builds use PWR-4320-POE-AC for PoE power.
Redundant power feeds
ISR 4221 has no redundant supply bay or dual hot-swap power supply option. ISR 4431 secondary-supply builds use PWR-4430-AC/2 instead.
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| PWR-4220-AC |  PWR-4320-AC |  PWR-4330-AC |  PWR-125W-AC |  PWR-115W-AC | |
|---|---|---|---|---|---|
| Form Factor | External Unit | External Unit | Internal Module | External Unit | ATX |
| Operating Temperature | 0°C to 40°C | 0°C to 40°C | 0°C to 40°C | 0°C to 40°C | 40°C |
| Wattage | 90W | 125W | 250W | 125W | 115W |
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PWR-4220-AC is the AC Power Supply for Cisco ISR 4220. The 90W external unit supports ISR 4221 and ISR 4221X routers in the ISR 4200 Series. PWR-4220-AC= is the spare ordering form, and the equals suffix marks replacement-unit ordering.
PWR-4220-AC fits Cisco ISR 4221 and ISR 4221X routers that use the ISR 4200 Series external AC power unit. ISR 4321, ISR 4331 and ISR 4431 routers use different power supply PIDs, so a 4221 replacement should match the chassis label.
A Cisco ISR 4221 uses PWR-4220-AC for the 90W external AC power supply. The ISR 4221 power layout is external AC only, with no redundant power supply bay and no PoE power supply option. The ISR 4221X follows the same external AC power profile.
PWR-4220-AC is rated at 90W with 100-240V AC input and 50-60 Hz site power. Maximum AC input current is 1.5A to 0.6A. External supply dimensions are 37 x 73 x 152 mm or 36.5 x 67 x 155 mm.
PWR-4220-AC is not a dual hot-swap supply in Cisco ISR 4221 routers. The ISR 4221 has a single external AC power supply layout, so replacement planning should cover the router power interruption. Cisco 4431, 4451-X and 4461 platforms have dual hot-swap options.
PWR-4220-AC uses 100-240V AC autoranging input on standard branch power. The ISR 4221 input tolerance is 90-264V AC, and the normal site frequency is 50-60 Hz. Match the external brick and the chassis power label before ordering.
PWR-4220-AC uses the ISR 4221 external AC power path, and Cisco 4000 Series AC units include a 1.8 m electrical power cord. The router label carries the correct voltage, frequency, current draw and power dissipation for the installed unit. Match the site cord before installation.
No, PWR-4220-AC does not add power redundancy to an ISR 4221. The ISR 4221 has an external AC supply layout and no redundant power supply bay. Use the replacement unit to restore the single supply path, not to create a second power feed.
No, PWR-4220-AC does not provide PoE for ISR 4221 routers. The ISR 4221 power supply option is external AC only, and the platform has no PoE supply option. ISR 4321 PoE builds use PWR-4320-POE-AC rather than the ISR 4221 external unit.
PWR-4320-POE-AC serves Cisco ISR 4320 PoE configurations, while PWR-4220-AC serves ISR 4221 and ISR 4221X external AC builds. Choose the 4221 unit for a failed ISR 4221 brick. Choose the 4320 PoE unit only when the router chassis and PoE requirement match.
PWR-4330-AC serves Cisco ISR 4330 routers, while PWR-4220-AC serves ISR 4221 and ISR 4221X external AC builds. The difference is host support, not a shared 4221 replacement choice. Use the chassis PID and power label to separate these ISR 4000 spares.
Cisco stopped selling PWR-4220-AC on November 7, 2023. Cisco service for the ISR 4221 platform ends January 31, 2030, and there is no successor power supply PID. Plan service spares against the chassis PID.
ORM offers PWR-4220-AC new sealed or certified refurbished. Cisco service for the base platform runs through January 31, 2030. New units carry up to a 3-year extended warranty, certified refurbished units carry up to 1 year, and every condition has 30-day returns, terms apply.
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