PS for Dell PowerEdge R520 R620 R720 R820 T420 T620 750W - Reliable

In this review the focus is on a direct replacement power supply for several Dell PowerEdge servers. The unit reviewed is a 750W internal power supply compatible with R520, R620, R720, R820, T420 and T620 models, and the bottom line is simple: this is a straightforward, no-frills replacement for technicians and IT teams who need a reliable, compatible PSU to restore server uptime quickly. The main reason to buy is compatibility and sufficient wattage for common dual-CPU configurations where a tested, genuine-style 750W supply is required.

Key Features

• Server compatibility: Designed to fit Dell PowerEdge R520, R620, R720, R820, T420 and T620 models, making replacement straightforward for those chassis.
• 750W output: Provides stable mains power at a level suitable for typical configurations used in these midrange rack and tower servers.
• Form factor match: Internal supply form and connector layout match the original equipment for easy swap without modification.
• Model references included: Labeled with the known part identifiers to help confirm fitment before purchase, reducing installation guesswork.
• Purpose-built replacement: Intended as a direct service part to restore a server to working order rather than as an aftermarket performance upgrade.

Who It's For

This power supply is aimed at IT technicians, system administrators and small data center teams who maintain Dell PowerEdge R520, R620, R720, R820, T420 and T620 servers and need a like-for-like replacement to restore operation quickly. It suits environments where reliability and compatibility matter more than additional features such as hot-swap redundancy beyond what the server chassis provides.

It is less suitable for users looking to upgrade power capacity beyond 750W or for hobbyists who require comprehensive manufacturer warranty paperwork; buyers seeking specialized or higher-wattage aftermarket PSUs should look elsewhere.

Pros & Cons

Pros

• Direct fit for multiple PowerEdge models, which simplifies service and reduces downtime.
• Sufficient 750W rating for common dual-CPU, multi-drive configurations in these servers.
• Matches internal connectors and form factor so installation is typically plug-and-play.

Cons

• Not intended as a performance upgrade; it replaces original capacity rather than increasing headroom.

Specifications

Product type	Internal server power supply
Compatible models	PowerEdge R520, R620, R720, R820, T420, T620
Output power	750W
Brand	Comp XP
Model identifiers	06W2PW / 6W2PW referenced

Our Verdict

For professionals maintaining compatible Dell PowerEdge servers, this 750W internal power supply is a sensible, cost-effective replacement choice because it restores standard power capability with a direct-fit unit. It delivers good value when the goal is reliable service and minimal installation effort rather than increased power capacity or additional bells and whistles.

Frequently Asked Questions

Will this fit my PowerEdge R720?
Yes, it is specified as compatible with the R720 chassis and the internal connectors match the original layout.

Is this a genuine Dell-branded supply?
The listing is for a Comp XP replacement that references the common Dell part identifiers for fitment and service replacement.

Is 750W enough for dual-CPU configurations?
In most typical dual-CPU, multi-drive configurations for these models 750W provides adequate power, but heavily populated expansion setups may require verification of total system draw.