# Power Supply IBM 550W 94Y6668-RFB — 550W redundant AC server PSU

**URL:** https://aio.lv/en/product--ibm-94y6668-rfb--10472439
**Data updated:** 2026-01-12 19:31 (EET)
**Category:** Server Parts & Components
**Manufacturer:** IBM
**Manufacturer code:** 94Y6668-RFB
**EAN:** 8834361656932
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

IBM 550W Power Supply 94Y6668-RFB is a 550-watt AC server power unit designed for IBM systems. It provides reliable power delivery for rack or blade servers, supports hot-swap/redundant configurations where compatible, and helps maintain uptime and stable operation. Ideal for data centers and enterprise environments needing a direct replacement or spare unit.

## Long description

IBM 550W Power Supply 94Y6668-RFB — 550W redundant AC server PSU is a 550-watt AC power unit designed for use in compatible IBM server models. The unit is intended as a direct replacement or spare for systems that require a 550W redundant or hot-swap power supply. It delivers stable AC power to server components and is suitable for rack or blade servers in data center and enterprise deployments.
Advantages
The IBM 94Y6668-RFB offers a standardized 550W output and is compatible with systems that support redundant configurations, enabling replacement without significant downtime when used in supported server chassis. Its design supports hot-swap capability where the server platform permits, helping maintain continuous operation. Being an OEM unit from IBM, it matches form factor and interface expectations for compatible systems, facilitating straightforward installation and inventory management.
Suitable for
 Replacing a failed 550W AC power supply in compatible IBM servers
 Keeping as a spare unit for data center redundancy
 Use in rack or blade server systems that accept IBM 94Y6668-RFB
 Maintaining uptime in enterprise environments with hot-swap capable chassis
Key specifications
 Brand: IBM
 Model / MPN: 94Y6668-RFB
 Power output: 550W
 Type: AC server power supply
 Function: Redundant / hot-swap where supported by the server
 EAN: 8834361656932
How to use
Verify compatibility with the target IBM server model and power bay before installation. Power down the server or follow your data center's hot-swap procedure if the chassis and workload permit live replacement. Insert the 94Y6668-RFB into the designated power bay, ensuring secure mechanical and electrical connection. After installation, confirm that the server recognizes the unit and that power redundancy status is as expected. Follow IBM maintenance documentation for any additional platform-specific steps.
Usage recommendations
Store spare units in a clean, dry environment and rotate inventory according to your maintenance plan. When replacing supplies, use matched units in redundant arrays to maintain balanced load and predictable failover. Consult IBM server manuals for details on hot-swap procedures and compatibility lists to avoid improper installation.

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### What is the warranty period?

All IBM 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 IBM 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.

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