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Amazon.com: FOR DELL Genuine Dell Studio Slim Desktop 540s 537s 560s PSU 250W SFF DT Power Supply (Certified Refurbished) : Electronics
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Dell PDF9N - 250W Power Supply Unit (PSU) for Dell Studio Inspiron Slim line SFF Model: 530S, 531S, 537s, 540s, Dell Vostro Slim line SFF 200, 200s, 220s, 400 - CPU Medics
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Amazon.com: New Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Dell Studio Slim 540S : Electronics
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