PWS-1K28P-SQ Supermicro 1280 W Power Supply at discount

PWS‑1K28P‑SQ Specifications

Supermicro 1 280 W 1U Redundant Hot‑Swap Power Supply Unit

Manufacturer: Supermicro
Manufacturer Model: PWS‑1K28P‑SQ
Product Line: Supermicro Server Power Supplies
Product Series: 1U Redundant Hot‑Swap Platinum SQ PSU
Product Type: Internal Server Power Supply (Hot-Swap)
Product Name: Supermicro 1 280 W 1U Redundant Platinum SQ PSU

KEY FEATURES:
Maximum Power Output: 1 280 W (180–240 V) / 1 000 W (100–140 V)
Efficiency: 80 PLUS Platinum certified; typical ~95%+
Input Voltage: 100–140 Vac / 180–240 Vac
Power Factor: ~0.98 at maximum load
Hot-Swap Support: Yes (redundant module, N+1 capable)
Remote Management: PMBus 1.2 support, FRU data available
Connector Type / Output Interface: Gold-finger wide connector (23‑pair)

PERFORMANCE:
+12 V Rail: Up to ~106.7 A (1 280 W mode) / ~83 A (1 000 W mode)
+5 VSB Rail: 4 A
Regulation: ±5% on main rails
Ripple & Noise: 120 mV typical on main rail, 50 mV on standby rail
Hold-up Time: PWOK signal ~17 ms at 75% load

ENVIRONMENTAL & RELIABILITY:
Designed for enterprise server rack environments with hot-swap and redundant operation
MTBF: >200,000 hours at 25 °C
Operating Temperature: 0 °C to 50 °C ambient
Operating Altitude: up to ~3,023 m
EMI Certification: EMI Class B
Protection Features: OCP, OVP, Short Circuit, Over Temperature, Under Voltage

PHYSICAL:
Form Factor: 1U rack-mountable redundant PSU module
Typical Dimensions: 76 mm × 360 mm × 40 mm
Weight: ~1.6–2 kg depending on configuration
Connector: Gold-finger “card edge” interface for compatible Supermicro PDBs