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Rectangular metal server PSU, matte grey finish, 14+4 pin connector visible

Lemincrash

Lemincrash SP50A33618 280W server power supply 14+4 pin

SKU CH-TRW0-4GQ61 MPN SP50A33618

280W single PSU with 14+4 pin connector fits Lenovo M82, M92, H530 and M8400T desktops

  • Max wattage280 W
  • Power supply redundancySingle
  • Main power connector14+4Pin
  • Output type12 V
  • Supply voltage100–240 V
  • AC input frequency50/60 Hz
  • Delivers up to 280W for Lenovo M82, M92, H530, M8400T
  • 80 Plus series efficiency reduces energy waste
  • 14+4 pin connector fits compatible Lenovo desktops
  • Universal 100-240V input works worldwide
  • Single 12V output rail simplifies wiring

Replacement PSU for Lenovo desktops

This 280W server power supply replaces the original unit in Lenovo M82 M92 H530 M8400T systems. It delivers a single 12V rail at up to 280W through a proprietary 14+4 pin connector. The unit accepts 100-240V input at 50/60Hz for worldwide mains compatibility. It is a new, single non-redundant module weighing 1200g.

Proprietary 14+4 pin connector

The 14+4 pin interface matches the factory wiring of the supported Lenovo models so no adapter cables are required. Package contents list only the PSU itself; no mounting screws, power cord or software are included. Builders must reuse the original AC cable and chassis fasteners from the system being serviced. The single-output design means all peripherals draw from the same 12V rail.

80 Plus rated single unit

The supply carries 80 Plus certification indicating baseline efficiency across typical loads. Its enclosed steel chassis fits the original mounting points in the target Lenovo towers and small-form-factor chassis. Operating humidity tolerance spans 20%-90% non-condensing for standard office or server-room environments. Buyers needing redundant power or higher wattage for add-in cards should consider other form factors.

How it compares

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

Price $30.99
Cheaper than about 93% of the 3,798 comparable items (median $131.99).
Max wattage 280 W
Lower than about 82% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameLemincrash
Product line80 Plus
Model namePS-4281-02
Ports & slots
Output type12 V
Power
Max wattage280 W
Power supply redundancySingle
Main power connector14+4Pin
Supply voltage100–240 V
AC input frequency50/60 Hz
Size & build
Product weight1200g
In the box
In the boxPSU*1
Environment & compliance
Humidity range20%-90%

Questions about this item

Will the 14+4 pin connector or the internal fan need replacement after long-term use?

The unit uses a single 14+4 pin main connector rated for the 280W maximum output; the internal cooling fan is the only moving part and would be the component most likely to require service after extended operation.

What limits continuous output when the supply runs at full 280W load?

The 280W maximum power rating is the primary limit; sustained loads at that level are constrained by the 12V output capacity and the single non-redundant design.

How much heat and noise should I expect when this 280W unit runs all day in a Lenovo M82 or M92?

With an 80 Plus series rating the supply meets standard efficiency targets, so waste heat and fan noise stay within typical server PSU levels for a 280W single unit operating on 100-240V input.

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