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Compact silver TFX power supply unit with side fan grille and multiple cables

myVolts

myVolts IP-S300FF1-0 300W TFX 2.1 ATX power supply

SKU CH-4CKB-8FJMN MPN IP-S300FF1-0

A 300 W TFX 2.1 ATX power supply with 24-pin, 4-pin CPU, four SATA and one floppy connector

  • Product typeAT
  • 300W output powers compact TFX builds
  • 24-pin ATX connector fits standard motherboards
  • 4-pin CPU power supports processor delivery
  • Four SATA connectors drive multiple storage devices
  • Floppy connector included for legacy peripherals

300 W TFX power supply

The myVolts IP-S300FF1-0 delivers 300 W from a TFX form factor with ATX 2.1 compliance. It provides a 24-pin main connector, a 4-pin CPU connector, four SATA connectors and one floppy connector. The unit is supplied new and ready for installation in compatible chassis.

Suits small-form-factor builds needing ATX 2.1 power

This supply fits systems that require a TFX chassis design and a 300 W ceiling. Builders who need more than 300 W, additional PCIe power connectors, or a standard ATX footprint should look at other units.

Steady output within the 300 W limit

Under sustained load the supply maintains its rated 300 W without exceeding the ATX 2.1 specification. The fixed connector set supports typical SATA storage and basic CPU power demands during continuous operation.

How it compares

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

Price $58.99
Cheaper than about 86% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

Does my motherboard need a 24-pin ATX socket and a 4-pin CPU power header to use this 300 W unit?

Yes, the supply provides one 24-pin main connector and one 4-pin CPU connector, so both headers must be present on the board.

Can I keep my existing SATA drives when installing this TFX 2.1 power supply?

The unit includes four SATA power connectors, so up to four SATA drives can be powered alongside older components.

How do I verify the 300 W TFX supply is operating correctly after installation?

Power on the system; if the motherboard POSTs and all connected drives spin up, the supply is delivering power as intended.

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