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Rectangular silver metal ATX server PSU with dual fans and 20-pin connector

TOPOWER

TOPOWER TOP-200SM 200W ATX server power supply 20Pin

SKU CH-GCWT-0PCHB MPN TOP-200SM

A 200W ATX server power supply with a 20-pin main connector and dual-fan cooling for automatic 100-240V input operation

  • Max wattage200 W
  • Power supply redundancySingle
  • Main power connector20Pin
  • Output current+3.3 V@8A, +5 V@20A, +12 V@8A
  • Supply voltage100–120 V / 200–240 V
  • AC input frequency60/50 Hz
  • Delivers 200 W for stable server operation
  • 20-pin ATX connector fits compatible motherboards
  • Dual fans provide active cooling under load
  • Automatic input switching handles 100–120 V and 200–240 V
  • Supplies +3.3 V, +5 V, +12 V, -12 V and +5 Vsb rails

200W ATX Server Supply

The TOPOWER TOP-200SM is a 200W ATX power supply designed for single-server installations. It provides a 20Pin main connector and regulated rails at +3.3V, +5V, +12V, -5V, -12V and +5VSB. The unit suits maintenance of legacy platforms or low-power server builds that require this specific connector layout. Builders needing higher wattage or redundant operation must select a different unit.

20Pin Connector Limits

The 20Pin main connector matches the original ATX specification and does not supply the extra pins found on later 24Pin motherboards. Using an adapter adds mechanical strain and can leave the +3.3V, +5V and +12V rails under-supplied on boards designed for the extended header. The 200W ceiling also restricts the number of drives and expansion cards the system can support reliably. Systems requiring PCIe auxiliary power cannot be powered from this unit.

Dual Fan Installation Notes

Dual fan cooling occupies the standard PSU depth but airflow direction should be verified against the chassis layout before mounting. The automatic input switch accepts 100 to 120 V or 200 to 240 V at 50 or 60 Hz without manual selection. Installers sometimes overtighten the four mounting screws and distort the sheet-metal flange, which can misalign the 20Pin connector. A snug fit with the supplied hardware avoids this issue.

How it compares

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

Price $27.99
Cheaper than about 93% of the 3,798 comparable items (median $131.99).
Max wattage 200 W
Lower than about 90% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameTOPOWER
Model nameTOP-200SM
Product typeATX
Power
Max wattage200 W
Power supply redundancySingle
Main power connector20Pin
Output current+3.3 V@8A, +5 V@20A, +12 V@8A
Supply voltage100–120 V / 200–240 V
AC input frequency60/50 Hz
Size & build
Shipping weight1.43 kg
Package size273 × 186 × 64 mm
More details
Fan configurationDual Fan Cooling

Questions about this item

Is the 20-pin main connector the right choice for my ATX server motherboard?

The 20-pin main connector matches classic ATX server boards that use the original 20-pin power socket. Verify your motherboard manual; if it shows a 20-pin header this unit will fit directly.

What does the 200W maximum power rating mean for a running server?

The 200W ceiling is the total power the supply can deliver across all rails. Combined output of +3.3V, +5V and +12V must stay within this limit, so plan your CPU, drives and add-in cards accordingly.

How does the 100-240V automatic input switch work with 50/60Hz mains?

The unit detects the incoming 100-120V or 200-240V line voltage and adjusts internally, while accepting both 50Hz and 60Hz frequencies. No manual selector is needed, so it operates on standard server power worldwide.

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