Supermicro PWS-1K21P-1R · 1200W 1U Redundant Power Supply (PWS-1K21P-1R)

MPN / P/N

PWS-1K21P-1R

Manufacturer model

Supermicro 1200W 1U Redundant Power Supply (PWS-1K21P-1R)

Brand

Supermicro

Total Power Output

1000W / 1200W

Type of Power Supply

Power Supply

Form Factor

1U

Dimension (W x H x L)

76 x 40.4 x 336 mm

+12V

1000W: 100-140V: 83A; 1200W:180-240: 100A

5V Standby

90 to 264Vac: 4.0 / 4.0A

Input Voltage Range

1000W: 100-140V; 1200W: 180-240V

Input Frequency Range

50-60Hz

Input Current Range

1000W: 11.5-8A; 1200W: 8.5-5A

Output Type

Gold Finger

PFC

Yes

Energy Efficiency

92% Peak

80 Plus Certification

80 Plus Gold

Validated Systems

SSG-2026T-DE2R24L

Validated Chassis

CSE-216E26-R1200LPB, CSE-745TQ-R1200B, CSE-826E16-R1200LPB, CSE-836A-R1200B, CSE-836E16-R1200B, CSE-836E26-R1200B, CSE-846A-R1200B, CSE-846E16-R1200B, CSE-846E26-R1200B, CSE-846TQ-R1200B

Product Environmental Compliance

RoHS and REACH compliant, details available upon request

Lifecycle status

End of life (EOL) according to manufacturer product page

Documented selection limits

Power rating depends on the exact AC/DC input range and configuration listed in the source. N+1/redundant capability does not mean every installation includes redundant modules. Verify approved chassis, connector/power distribution board, airflow direction, input voltage, cable and firmware/PMBus requirements. Manufacturer marks this part EOL; reference/replacement identification only, no new production or stock claim. EOL lifecycle evidence was observed on the own manufacturer page on 2026-10-17; use only as a replacement-parts reference for installed equipment.

EOL — reference note as of 2026-10-17

EOL: manufacturer marks this item end of life. Reference entry for installed-base maintenance; supply feasibility and condition require separate confirmation.

Specification source: Supermicro ↗
Checked against documentation: 17.10.2026