811405-B21: HP 500-Watts Power Supply For Cloudline 2200 Gen3 Server
MPN: 811405-B21|By: HP

Starting from
$60
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
This is the HP 500-Watts power Supply for cloudline 2200 Gen3 Server, order code 811405-B21. Power supplies must match the chassis, the wattage the configuration actually draws and, in a redundant pair, each other. This unit is 500W. Send us the server model and current PSU part number and we will confirm the pairing.
The listed price is per unit and current; tell us the quantity and we will confirm what it holds at before you raise the order.
Specifications
General
- Manufacturer part number
- 811405-B21
- Generation
- Gen3
- Product Type
- Power Supplies
- Manufacturer
- HP
Technical specifications
- Power Rating
- 500W
Compatibility & compliance
- Compatible Platform
- Cloudline 2200 Gen3 Server
Specifications for 811405-B21 as published by HP. 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 HP 811405-B21 is deployed
- Swapping out a failed power supply for 811405-B21 under change control
- Restoring redundancy after one supply in a pair has failed
- Adding a second supply to a chassis shipped with one
Who this part is for
- MSPs holding a matched PSU spare per chassis family
- Procurement sourcing a like-for-like supply outside a maintenance contract
- Teams re-rating power after adding GPUs or a full drive complement
What you get ordering this from us
Ordered by part number
811405-B21 is what is quoted and 811405-B21 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
No substitutions without asking
If we cannot supply the exact code we tell you what we can supply and why, rather than shipping an equivalent and letting you find out.
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.
Questions buyers ask about this part
Is 811405-B21 genuine and is the warranty intact?
Yes, new and sealed, with the HP warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
Will 811405-B21 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 |
| Delta Electronics 800W 80 PLUS Titanium Hot-Plug Server Power Supply | Delta Electronics | Wattage: 800W | In Stock | $125 |
Browse all Power Supplies or everything we stock from HP.
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.
