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Slimline TFX power supply unit with 80mm fan and 20+4 pin connector

myVolts

myVolts Replacement Power Supply 420W TFX Slimline SFF

SKU CH-85MX-G02Q7

TFX form-factor 420 W unit replaces 200–350 W Delta DPS-220AB-2 PSUs with 20+4 pin, 4-pin CPU, SATA and Molex connectors

  • Product typeAT
  • Higher 420 W capacity replaces 200 W to 350 W units
  • TFX slimline form factor fits small-form-factor and slimline chassis
  • 20+4 pin, 4-pin CPU, two Molex, floppy and two SATA connectors
  • 80 mm double ball-bearing fan provides active cooling
  • Wide-range 100/240 V input suits global mains voltages

420 W TFX Slimline Replacement

This 420 watt TFX power supply replaces Delta DPS-220AB-2 DCSLF PS-5251-5 units in slimline and small-form-factor desktops. It fits systems originally shipped with 200, 250, 300 or 350 watt PSUs and uses an AT form factor. The unit is new and built as a direct drop-in replacement.

Capacity and headroom

The 420 watt output provides headroom above 250, 300 and 320 watt factory units, supporting additional drives or a modest graphics card. It will run out when sustained loads exceed 420 watts or when peak transient demands surpass the unit's protection limits. The 80 mm double ball-bearing fan handles cooling for typical SFF workloads.

Connectors and input limits

Included cables are a 20+4 pin motherboard connector, a 4-pin CPU connector, two Molex, one floppy and two SATA. Input voltage range is 100 to 240 volts, so the PSU works worldwide without a switch. No PCIe power connectors are present, limiting discrete GPU options to slot-powered cards only.

How it compares

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

Price $103.99
Cheaper than about 66% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

Will this 420 w TFX unit fit the same mounting points as my old 250 w Delta DPS-220AB-2?

Yes, it is designed as a direct replacement for the Delta DPS-220AB-2 DCSLF PS-5251-5 in Slimline and SFF cases.

How can I confirm the 80 mm double ball bearing fan is spinning correctly after installation?

Power on the system and listen for the fan; the 80 mm double ball bearing cooler should start immediately and run steadily.

Which power cables are included for drives and motherboard?

The box contains a 20+4 pin motherboard connector, a 4-pin CPU connector, two Molex connectors, a floppy connector and two SATA connectors.

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