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672042164349
Supermicro PWS-1K03A-1R Redundant Power Supply
672042164349

Supermicro PWS-1K03A-1R Redundant Power Supply

4.6(149 ratings)

Best price now

$168.87at ctspoint.comChecked 49 min ago

16% under what the other stores charge

Compared across 5 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $168.87 at ctspoint.com (checked Nov 11, 2026).
  • Checked at 5 stores.

Our take on the Supermicro PWS-1K03A-1R Redundant Power Supply

The Supermicro PWS-1K03A-1R is a 1000 W server power supply with 80 Plus Titanium efficiency and a redundant design for hot-swap use in Supermicro chassis. Titanium efficiency puts it at the top of the 80 Plus tiers, ahead of Platinum and Gold units that cost less but waste more power as heat. It is built for rack servers and storage systems that need to keep running when one supply fails, not for desktop PCs. Owners rate it highly, and the main complaints are noise and the need for the right Supermicro chassis and backplane.

Best forRack servers and storage arrays that need redundant powerSupermicro chassis owners replacing or adding a supplyAlways-on systems where efficiency and heat matterIT teams standardizing on hot-swap server parts
Pros
  • 80 Plus Titanium efficiency, the highest 80 Plus tier
  • 1000 W output for multi-socket servers and drive arrays
  • Redundant, hot-swap design keeps the system up if one unit fails
  • Fits Supermicro chassis and backplanes built for this supply
  • High owner rating across many reviews
Cons
  • Requires a compatible Supermicro chassis and power distribution board
  • Server-grade fan noise is noticeable in a home or office room
  • Overkill for a desktop or small home server
  • Not a standard ATX supply, so consumer cases will not fit it

Supermicro PWS-1K03A-1R Redundant Power Supply prices at every store

  • ctspoint.comNew

    In stock

    $168.87+ $10.00 shippingChecked 49 min ago
    Visit ctspoint.com
  • GotodirectNew

    In stock

    $202.00Checked 49 min ago
    Visit Gotodirect
  • eBayNew

    In stockSold by pcserver2005

    $300.00Free shippingChecked 49 min ago
    Visit eBay
  • Supermicro eStoreNew

    In stock

    $316.19Checked 49 min ago
    Visit Supermicro eStore
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $197.00Free shippingChecked 49 min ago
    Visit Amazon

Store links may earn us a commission.

Supermicro PWS-1K03A-1R Redundant Power Supply price history

Lowest price we've seen: $168.87 on Nov 11 at ctspoint.com. Tracked across 4 stores since Nov 11.

What reviewers say

  • 4.6 / 5149 ratings

Owners rate it 4.6 out of 5 and mostly praise its reliability and efficiency in Supermicro builds. Criticism centers on fan noise and the need for the correct chassis.

What people mention
  • EfficiencyPraisedOwners note low waste heat and power draw from the Titanium rating.
  • ReliabilityPraisedReviewers report stable operation in servers running around the clock.
  • NoiseCriticisedThe fan is loud enough that owners would not want it in a living space.
  • CompatibilityMixedIt fits Supermicro chassis as intended, but buyers warn it will not work in standard ATX cases.
  • BuildPraisedOwners describe a solid, heavy unit that feels built for rack duty.

About the Supermicro PWS-1K03A-1R Redundant Power Supply

The Supermicro PWS-1K03A-1R is a redundant power supply rated at 1000 watts. It carries an 80 Plus Titanium efficiency rating.

Brand
Supermicro
Model
PWS-1K03A-1R
Power
1000 watts
Efficiency
80 Plus Titanium
Type
Redundant power supply

Questions and answers

Is this power supply worth it over a cheaper Gold unit?
If the server runs constantly, the Titanium efficiency cuts power waste and heat, which can matter over years of uptime. For a lightly used machine, a Gold or Platinum supply does the same job for less.
Will it fit my server case?
Only if the case is a Supermicro chassis designed for this supply and its backplane. It is not an ATX unit and will not fit consumer or generic rack cases.
What does redundant mean here?
Two supplies can run in parallel, so if one fails the other keeps the server powered. You can swap the failed unit while the system stays on.
How loud is it?
It uses a server-grade fan that is clearly audible. It suits a rack or closet, not a desk or bedroom.
What is in the box?
The power supply module itself. Cables and the power distribution backplane are part of the chassis, not included with the supply.
Does it work with older Supermicro chassis?
Check the chassis model and backplane part number first. Many Supermicro 2U and 3U chassis accept it, but older or different platforms may not.
Where is the Supermicro PWS-1K03A-1R Redundant Power Supply cheapest?
At ctspoint.com, for $168.87, 16% under what the other stores charge, as of our latest check.
What do buyers say about the Supermicro PWS-1K03A-1R Redundant Power Supply?
Rated 4.6 out of 5 from 149 ratings.
Where can I buy the Supermicro PWS-1K03A-1R Redundant Power Supply?
5 stores we checked sell it, including Gotodirect, ctspoint.com, Amazon, eBay, Supermicro eStore.