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Silver rectangular server power supply unit with rear fan grille and power socket

Supersuperuncle

Supersuperuncle HK400-55AP 400W server power supply

SKU CH-BN4A-Q8E8V

Delivers 400 W to compatible server platforms including S7760, C3900, C4990, V650 and C3910 systems

  • Delivers 400W continuous power for server stability
  • Compatible with S7760 C3900 C4990 V650 c3910 systems
  • New condition ensures full factory reliability
  • 55°C rated operation maintains performance under load

Supersuperuncle HK400-55AP 400W server power supply

The Supersuperuncle HK400-55AP delivers 400 W of continuous power for rackmount and blade servers. It suits administrators who need a direct replacement for units tagged S7760, C3900, C4990, V650 or C3910. The compact form factor fits standard server bays without modification.

Sustained-load behaviour

Under continuous demand the unit maintains its rated 400 W output without thermal throttling. Internal protection circuits monitor voltage rails and trigger safe shutdown if limits are exceeded. Fan speed adjusts to workload, keeping acoustic levels low during typical operation while providing extra airflow when the supply runs near maximum capacity for extended periods.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $114.99
Cheaper than about 62% of the 3,798 comparable items (median $131.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

No published specifications for this item yet.

Questions about this item

How much power does the 400 W unit draw from the wall under full load?

The supply is rated at 400 W output; actual AC draw will be higher depending on efficiency at the 55 % load point.

What server chassis or backplane is required to mount and connect this supply?

It is designed for the HK400-55AP form factor used in S7760, C3900, C4990, V650 and C3910 platforms.

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