mwave offers the Coolmax Power Supply Tester, model no. PS-228, for $14.99. Coupon code “3PS228” drops it to $11.99. With free shipping, that’s $2 under our October mention and the lowest total price we could find by a buck. It features an LCD readout, 6- and 8-pin PCI Express connectors, and more. Coupon expires January 31.

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