We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
ATX 20-pin to P8 P9 and two 250 terminal power adapter cable

Wilfly

Wilfly ATX120262 ATX 20-pin to P8/P9 + 2×250 terminal internal power cable

SKU CH-K4WF-F2W1Y

Converts an ATX 20-pin supply to dual P8/P9 motherboard headers with two 250 terminals for the power switch

  • Cable Length150mm/500mm (6inch/19.7inch)
  • Connector A1 X ATX 20pin female
  • Connector B1 X P8 6Pin female + 1 X P9 6Pin female + 2 X 250 terminal
  • Connector Number5
  • Converts ATX PSU to AT motherboard using 20-pin and dual 6-pin connectors
  • Powers legacy AT boards via P8 and P9 plus two 250 terminals
  • 100% copper conductors with UL-certified wire for reliable power delivery
  • RoHS-compliant construction meets environmental safety standards
  • Choice of 150 mm or 500 mm cable length for flexible routing

ATX-to-AT Power Adapter

This cable converts a standard ATX 20-pin supply into the P8 and P9 connectors required by AT motherboards. Two 250 terminals provide a connection point for a physical power switch. It is built with 100% copper wire and meets UL and RoHS requirements.

Retrofit Builders and Legacy Maintenance

The adapter suits technicians restoring vintage AT systems or industrial boards that still use the 6-pin P8/P9 pair. Builders working with modern ATX motherboards or any board that relies on additional ATX-derived rails should not use this cable.

Cable Length Choice

Two fixed lengths are offered: 150 mm (6 inch) and 500 mm (19.7 inch). Select the length that matches the distance between the power supply and the motherboard in your chassis.

Highlights

  • Converts ATX PSU to AT motherboard using 20-pin and dual 6-pin connectors
  • Powers legacy AT boards via P8 and P9 plus two 250 terminals
  • 100% copper conductors with UL-certified wire for reliable power delivery
  • RoHS-compliant construction meets environmental safety standards
  • Choice of 150 mm or 500 mm cable length for flexible routing

Specifications

Cable Length150mm/500mm (6inch/19.7inch)
Connector A1 X ATX 20pin female
Connector B1 X P8 6Pin female + 1 X P9 6Pin female + 2 X 250 terminal
Connector Number5

Questions about this item

How does the 20-pin ATX connector translate power to the older motherboard headers?

The cable splits a single ATX 20-pin female into one P8 6-pin and one P9 6-pin female, delivering the required voltages to an AT-style motherboard.

What does the 250-terminal pair add to the conversion?

Two 250 terminals connect the case power switch so the AT motherboard can be turned on from the front panel.

What clearance is needed for the 150 mm or 500 mm cable run?

Choose the 150 mm version for tight spaces or the 500 mm version for full-tower routing; both use 100 % copper conductors.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.