D550E-S0: Dell 550W Redundant Hot-Plug Power Supply, 80 PLUS Platinum, for PowerEdge R320/R420/R620/R720/R720xd (also sold under Dell P/Ns RYMG6, M95X4, DPS-550MB)
MPN: D550E-S0|By: Dell

Starting from
$55
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
Key specs
- Power Rating
- 550W
- Redundancy
- Redundant
- Compatible Platform
- PowerEdge R320/R420/R620/R720/R720xd
- Capacity
- 550MB
- Efficiency Rating
- 80 PLUS Platinum
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
D550E-S0 is a Dell 550W redundant hot-plug power supply, 80 PLUS platinum, for PowerEdge R320/R420/R620/R720/R720xd (also sold under dell p/ns RYMG6, M95X4, DPS-550MB). Power supplies must match the chassis, the wattage the configuration actually draws and, in a redundant pair, each other. This unit is 550W. Send us the server model and current PSU part number and we will confirm the pairing.
Send the part number of the supply already fitted and we will match it rather than merely match the wattage.
Specifications
General
- Manufacturer part number
- D550E-S0
- Product Type
- Power Supplies
- Manufacturer
- Dell
Technical specifications
- Capacity
- 550MB
- Power Rating
- 550W
- Efficiency Rating
- 80 PLUS Platinum
- Redundancy
- Redundant
Compatibility & compliance
- Compatible Platform
- PowerEdge R320/R420/R620/R720/R720xd
Specifications for D550E-S0 as published by Dell. Where a value is absent it is because we could not verify it, not because it does not exist. Ask and we will check.
Where the Dell D550E-S0 is deployed
- Swapping out a failed power supply for D550E-S0 under change control
- Restoring redundancy after one supply in a pair has failed
- Holding a matched spare for a production chassis
Who this part is for
- IT teams restoring redundancy after one supply in a pair has failed
- Procurement sourcing a like-for-like supply outside a maintenance contract
- Engineers adding a second supply to a chassis shipped with one
What you get ordering this from us
Ordered by part number
D550E-S0 is what is quoted and D550E-S0 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Draw calculated, not assumed
We work out what the configuration actually pulls before recommending a wattage.
Questions buyers ask about this part
Is D550E-S0 genuine and is the warranty intact?
Yes. It ships new in Dell packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will D550E-S0 work in my server?
Send the server model and the part number of the supply already fitted. In a redundant pair both units have to match on wattage and efficiency grade, or the chassis alerts on every boot.
Do you accept purchase orders and quote at volume?
Yes, POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
Compare other Power Supplies we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| Dell 495W Hot-Plug Redundant Power Supply for PowerEdge Rack Servers | Dell Technologies | Efficiency: 80 PLUS Platinum | In Stock | $175 |
| HPE 500W Flex Slot Platinum Hot-Plug Power Supply for ProLiant Servers | HPE | Efficiency: 80 PLUS Platinum | In Stock | $190 |
| Supermicro 1200W Redundant Titanium Hot-Swap Power Supply Module | Supermicro | Efficiency: 80 PLUS Titanium | In Stock | $415 |
| Lenovo 750W 80 PLUS Platinum Hot-Plug Server Power Supply | Lenovo | Wattage: 750W | In Stock | $165 |
| IBM 550W 80 PLUS Platinum Hot-Plug Server Power Supply | IBM | Wattage: 550W | In Stock | $100 |
| HP 460W 80 PLUS Gold Hot-Plug Server Power Supply | HP | Wattage: 460W | In Stock | $60 |
Browse all Power Supplies or everything we stock from Dell.
Specifying a system, not just the part?
An accelerated node draws far more than a general-purpose server, so power is sized with the build rather than assumed from the chassis.
