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Compact TFX power supply unit with 80mm cooling fan and multiple cable connectors

myVolts

myVolts 320W TFX power supply for Dell Studio Slim 540s 537s 560s SFF

SKU CH-088A-TCWKK

TFX 320W replacement PSU for Dell Studio Slim 540s, 537s and 560s SFF desktops with 20+4-pin, 4-pin CPU, SATA and Molex connectors

  • Product typeAT
  • Replaces 200, 250, 300 or 350W units with 320W output
  • Fits Dell Studio Slim 540s, 537s and 560s SFF chassis
  • TFX form factor installs in slimline and SFF cases
  • 20+4 pin, 4-pin CPU, two Molex, floppy and two SATA connectors
  • 80mm fan cools at 100 to 240V input

Replacement PSU for Dell Studio Slim SFF

This 320 W TFX power supply replaces the original unit in Dell Studio Slim 540s 537s 560s SFF desktops. It delivers 320 W of steady output and fits systems that previously used 200, 250, 300 or 350 W units. The 20+4 pin motherboard, 4-pin CPU, two Molex, floppy and two SATA connectors cover the usual internal devices.

Thermals noise and power draw

An 80 mm cooling fan handles airflow while the unit operates from 100 to 240 V input. At 320 W load the supply runs within its rated capacity without exceeding the thermal design of the Slim chassis. The fan speed scales with temperature to keep noise low during typical office or media tasks.

Sustained load behaviour

Under continuous demand the 320 W output remains stable up to the rated limit and the fan maintains airflow to prevent throttling. The design supports an upgrade path to 420 W for builds that need more headroom. Systems requiring higher peak power or additional PCIe connectors are not addressed by this unit.

How it compares

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

Price $101.99
Cheaper than about 67% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

How do I install the 20+4 pin motherboard connector in my Dell Studio Slim 540s?

Align the 20+4 pin plug with the motherboard socket, press firmly until the latch clicks, then attach the 4-pin CPU connector and the two SATA power leads before closing the case.

Which component will need replacement first after long-term use?

The 80mm cooling fan is the only moving part; dust buildup or bearing wear will eventually reduce airflow and require a fan swap.

At what sustained load does the 320W limit become a constraint?

Continuous draws above 320 watts will trip the over-current protection, so the unit is best kept below that level during heavy workloads.

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