Supermicro 3200W 1U Redundant Power Supply (PWS-3K21A-1R2)

  • PMBus 1.2 Support for Remote Management
  • Hot swappable, N+1
  • Titanium 96%+ Efficiency
  • Maximum Output Power: 3200W
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SKU
PWS-3K21A-1R2

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The Supermicro PWS-3K21A-1R2 delivers up to 3200W in a compact 1U redundant power supply ideal for high-density servers and data centers. With 80Plus Titanium efficiency exceeding 96% at 230Vac and 99% typical power factor, it supports 200-240Vac and 240Vdc inputs while providing hot-swappable N+1 redundancy and PMBus 1.2 remote management with FRU data. Measuring just 73.5 x 40 x 185 mm, this unit outputs up to 262.3A on the +12.2V rail with robust protections and an MTBF exceeding 400,000 hours for reliable, high-uptime performance in demanding rack environments.
More Information
TypeRedundant
Form Factor1U
Dimension (W x H x L)73.5 x 40 x 185 mm
+12V82A (1000W) / 237.7A (2900W) / 245.9A (3000W) / 262.3A (3200W)
+12V Standby3A
Input Voltage Range100-127Vac: 1000W / 200-207Vac: 2900W / 207-220Vac: 3000W /220-240Vac: 3200W / 240Vdc: 3200W (For CQC only)
Input Frequency Range50-60Hz
Input Current Range200-240Vac: 16A / 240Vdc: 13.5A (for CQC only)
Output TypeGold Finger
Energy Efficiency96%+ Efficiency
80 Plus Certification80 Plus Titanium
Warranty1 year warranty
Product Environmental ComplianceRoHS and REACH compliant, details available upon request
TitleFormatDate
PWS-3K21A-1R2 Spec Sheet JPG Jun 2026

This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65Warnings.ca.gov