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672042210275
Supermicro PWS-1K05A-1R Redundant Power Supply
672042210275

Supermicro PWS-1K05A-1R Redundant Power Supply

Best price now

$371.02at Supermicro eStoreChecked 41 min ago

24% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $371.02 at Supermicro eStore (checked Nov 11, 2026).
  • Checked at 4 stores.

Our take on the Supermicro PWS-1K05A-1R Redundant Power Supply

The Supermicro PWS-1K05A-1R is a 1000W server power supply module built for Supermicro chassis that take redundant, hot-swappable units. It carries 80 Plus Titanium efficiency and PMBus 1.2 support, so a management controller can read power draw, temperature and fan speed remotely. It suits people maintaining or expanding Supermicro rack servers who need a matching spare or a second module for redundancy. Against generic ATX supplies it is a drop-in module with remote telemetry, but it only fits Supermicro bays and is not a consumer part.

Best forSupermicro rack server owners adding a redundant moduleReplacing a failed hot-swap PSU in a Supermicro chassisData center and lab builds that need PMBus monitoring
Pros
  • 80 Plus Titanium efficiency cuts waste heat and power draw at load
  • PMBus 1.2 lets the BMC read input, output and fan data
  • Hot-swappable module design keeps a server running during replacement
  • Supermicro-certified, so it matches the chassis and backplane
  • Redundancy control lets the system manage load sharing between modules
Cons
  • Fits only Supermicro chassis with the matching PSU bay
  • Loud at high load, as server supplies usually are
  • No consumer connectors or ATX cabling
  • Older PMBus 1.2 spec, not the newest revision

Supermicro PWS-1K05A-1R Redundant Power Supply prices at every store

  • RackmountNet StoreNew

    In stock

    $375.00Checked 42 min ago
    Visit RackmountNet Store
  • eBayNew

    In stockSold by tm_space

    $489.95Free shippingChecked 42 min ago
    Visit eBay
  • Supermicro eStoreNew

    Availability unknown

    $371.02Checked 41 min ago
    Visit Supermicro eStore
  • AmazonNew

    Availability unknown

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

    $490.99Free shippingChecked 42 min ago
    Visit Amazon

Store links may earn us a commission.

Supermicro PWS-1K05A-1R Redundant Power Supply price history

Lowest price we've seen: $371.02 on Nov 11 at Supermicro eStore. Tracked across 4 stores since Nov 11.

About the Supermicro PWS-1K05A-1R Redundant Power Supply

The Supermicro PWS-1K05A-1R is a redundant power supply. It supports PMBus 1.2 for remote management and offers flexible redundancy control.

It is 80 Plus Titanium certified and Supermicro certified.

Model
PWS-1K05A-1R
Type
Redundant power supply
Efficiency
80 Plus Titanium
Remote management
PMBus 1.2 support
Redundancy
Flexible redundancy control
Certification
Supermicro certified

Questions and answers

Will this fit my Supermicro chassis?
It fits Supermicro chassis that list the PWS-1K05A-1R as a supported module, typically 1U and 2U redundant-bay systems. Check your chassis model's power supply compatibility list before buying.
Is it really 80 Plus Titanium?
Yes, Supermicro rates this module 80 Plus Titanium, the top tier for server supplies. That means very high efficiency at 50 percent load, which matters in always-on servers.
What does PMBus support give me?
PMBus 1.2 lets the server's management controller read input voltage, output current, temperature and fan speed. You can monitor and alert on the supply remotely instead of walking the rack.
Can I run just one module?
Yes, a single module powers the server, but the point of this design is redundancy. Two modules let one fail or be swapped while the server stays up.
Does it come with cables?
No. It is a hot-swap module that plugs into the chassis backplane, so it uses the server's existing power distribution rather than loose cables.
Is it worth it over a cheaper server PSU?
If your chassis takes this module, a certified unit avoids fit and firmware problems and keeps PMBus monitoring working. A cheaper generic supply may not fit the bay or report to the BMC.
Where is the Supermicro PWS-1K05A-1R Redundant Power Supply cheapest?
At Supermicro eStore, for $371.02, 24% under what the other stores charge, as of our latest check.
Where can I buy the Supermicro PWS-1K05A-1R Redundant Power Supply?
4 stores we checked sell it, including Supermicro eStore, Amazon, RackmountNet Store, eBay.