SS-400H1U: Seasonic 400-Watts 100-240V ATX Power Supply
MPN: SS-400H1U|By: Seasonic
Price
Quoted on request
Current pricing within 48 business hours.
In Stockships worldwide
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
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
Seasonic lists SS-400H1U as a 400-Watts 100-240V ATX power Supply. Headroom matters more than the label wattage once GPUs or a full drive bay are in the chassis. This supply is rated 400W. Tell us the configuration and we will work the draw out rather than guess at it.
Send the quantity you need and we will come back within 48 business hours with availability confirmed, not estimated.
Specifications
General
- Manufacturer part number
- SS-400H1U
- Product Type
- Power Supplies
- Manufacturer
- Seasonic
Technical specifications
- Power Rating
- 400W
- Input Voltage
- 100-240V
Physical
- Form Factor
- ATX
Published specifications for SS-400H1U. Anything not listed here we will confirm against the manufacturer's documentation before quoting, because we would rather answer the question than let you assume.
Where the Seasonic SS-400H1U is deployed
- Sourcing SS-400H1U against a build sheet that names it explicitly
- Re-rating power after adding accelerators or drives
- Holding a matched spare for a production chassis
Who this part is for
- Procurement sourcing a like-for-like supply outside a maintenance contract
- Engineers adding a second supply to a chassis shipped with one
- Teams re-rating power after adding GPUs or a full drive complement
What you get ordering this from us
Ordered by part number
SS-400H1U is what is quoted and SS-400H1U 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.
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 SS-400H1U genuine and is the warranty intact?
Yes, new and sealed, with the Seasonic warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
Will SS-400H1U 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 Seasonic.
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.