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Rectangular silver metal server PSU with fan grille and 20+4 pin connector

TOPOWER

TOPOWER TOP-250W1U 250W server power supply

SKU CH-AN6B-DVKFW MPN TOP-250W1U

A 250 W ATX server power supply with a 20+4 pin connector, 100-240 V input and 1.57 x 3.94 x 7.87 in dimensions

  • TypeATX
  • Single/RedundantSingle
  • Maximum Power250W
  • Main Connector20+4Pin
  • Output Current+3.3V@18A, +5V@16A, +12V@16A, [email protected] , [email pro
  • Input Voltage100 - 240 V
  • Delivers 250 W maximum power for server workloads
  • Single-unit design simplifies rack installation and maintenance
  • ATX 20+4-pin main connector fits standard server boards
  • Wide 100–240 V input handles global voltage ranges
  • Compact 1.57″ × 3.94″ × 7.87″ form factor fits 1U chassis

250W ATX server power supply

The TOPOWER TOP-250W1U is a single 250W ATX unit built for 1U server chassis. It delivers power through a standard 20+4Pin main connector and accepts a universal 100 - 240 V input. This supply suits administrators maintaining legacy rack systems or low-density compute nodes.

12V rail rated at 16A

The +12V line provides 16A while the +3.3V and +5V rails offer 18A and 16A respectively. Combined output reaches 250W, giving headroom for a single CPU and a modest drive count. Heavy GPU workloads or multi-socket configurations will exceed the available 12V current.

Replaces failed 250W 1U units

This model directly replaces an equivalent 250W ATX server supply with the same 20+4Pin connector and 1.57" height. The jump is worth it when the original unit has failed or when a spare is needed for cold-standby redundancy. Builders needing redundant hot-swap modules or higher 12V capacity must look elsewhere.

Points forts

  • Delivers 250 W maximum power for server workloads
  • Single-unit design simplifies rack installation and maintenance
  • ATX 20+4-pin main connector fits standard server boards
  • Wide 100–240 V input handles global voltage ranges
  • Compact 1.57″ × 3.94″ × 7.87″ form factor fits 1U chassis

Caractéristiques

BrandTOPOWER
ModelTOP-250W1U
TypeATX
Single/RedundantSingle
Maximum Power250W
Main Connector20+4Pin
Output Current+3.3V@18A, +5V@16A, +12V@16A, [email protected] , [email protected] , [email protected]
Input Voltage100 - 240 V
Dimensions1.57" x 3.94" x 7.87"(H x W x L)
Poids d’expédition1.18 kg
Dimensions du colis262 × 185 × 86 mm

Questions sur cet article

Will the 20+4Pin main connector on the TOPOWER TOP-250W1U fit an older motherboard that only has a 20-pin socket?

Yes, the 20+4Pin connector splits so the 20-pin portion plugs directly into a 20-pin motherboard socket while the extra 4 pins hang unused.

How can I verify the TOP-250W1U is delivering the rated +12V@16A after installation?

Measure the +12V rail with a multimeter under load; it should read close to 12V while the system draws up to 16A on that rail.

Does the TOP-250W1U include mounting screws or a power cord, or must I buy them separately?

The supplied specifications list only the power supply unit itself; mounting screws and an IEC power cord are not included and must be sourced separately.

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