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Rectangular 300W power supply with 12-pin and 4-pin connectors

Fans

Fans 300W 12-pin +4-pin power supply HK400-11PP FSP300-40AHBAA

SKU CH-3E8J-2DHAH

300W power supply with 12-pin and 4-pin connectors for Tsinghua Tongfang desktops

  • Delivers 300 W for stable desktop operation
  • 12-pin + 4-pin connector fits Tsinghua Tongfang systems
  • New unit ensures reliable out-of-box performance
  • Model HK400-11PP matches FSP300-40AHBAA specification

Tsinghua Tongfang 300W replacement PSU

This 300 watt power supply matches the HK400-11PP and FSP300-40AHBAA part numbers used in Tsinghua Tongfang desktops. It delivers power through a 12-pin and a 4-pin connector for the original motherboard layout.

Direct fit with proprietary 12-pin and 4-pin plugs

Installation is a straight swap when the chassis uses the same 12-pin and 4-pin arrangement. Builders whose boards need standard ATX 24-pin or EPS 8-pin connectors cannot use this unit.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $32.99
Cheaper than about 94% of the 10,869 comparable items (median $142.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the HK400-11PP is delivering stable 300W power after installation?

The system should boot reliably under load and the PSU fan should spin without unusual noise, indicating the 12-pin and 4-pin connectors are seated correctly.

Does the FSP300-40AHBAA include both the 12-pin and 4-pin cables, or must I source one separately?

The unit ships with the fixed 12-pin and 4-pin connectors attached; no additional cables are required for a compatible Tongfang desktop.

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