D850EF-01: Dell 850W Modular Power Supply (for Alienware Aurora R5/R6/R7/R8/Area-51 R4/R5 desktops)
MPN: D850EF-01|By: Dell
Starting from
$205
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
- 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
Dell lists D850EF-01 as an 850W modular power Supply (for alienware aurora R5/R6/R7/R8/Area-51 R4/R5 desktops). Mixing efficiency grades in a redundant pair is the common mistake: the pair runs, then throws a mismatch alert on every boot. Give us the part number already fitted and we will supply its match.
Priced per unit, with tiered pricing at quantity. Send the number you need and we will come back with the banded price.
Specifications
General
- Manufacturer part number
- D850EF-01
- Product Type
- Power Supplies
- Manufacturer
- Dell
Technical specifications
- Power Rating
- 850W
The table below is what the power supply is documented as, not what we have inferred from the part number. If the figure you need is missing, ask and we will source it from the manufacturer.
Where the Dell D850EF-01 is deployed
- Swapping out a failed power supply for D850EF-01 under change control
- Adding a second supply to a chassis shipped with one
- Restoring redundancy after one supply in a pair has failed
Who this part is for
- Engineers adding a second supply to a chassis shipped with one
- IT teams restoring redundancy after one supply in a pair has failed
- MSPs holding a matched PSU spare per chassis family
What you get ordering this from us
Ordered by part number
Quoted and supplied against D850EF-01 specifically, so what arrives is what your build sheet asks for.
Matched to the installed unit
Send the part number already in the chassis and we supply its pair, including the efficiency grade that stops the mismatch alert.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Questions buyers ask about this part
Is D850EF-01 genuine and is the warranty intact?
Yes. Supplied new and unopened, so the manufacturer warranty and firmware update path stay supported. No grey-market stock and no refurbished units sold as new.
Will D850EF-01 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. Purchase orders are accepted from qualified organisations, net terms are available on approval, and tiered pricing applies at quantity. Tell us how many you need.
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.