How much does this cost to the nearest dollar?

iFi iPower Elite Low Noise Power Supply Adapter (5V)
THE VIP OF POWER SUPPLIES - Audiophile transformer specially developed for the Elite UPGRADE YOUR POWER SOURCE – Remove unwanted electrical noise introduced by noisy stock power supplies to provide a steadier and more reliable current to your device INSTANT CLARITY - Enjoy clear audio and more defined digital video with Active Noise which filters out spurious frequencies introduced by common household equipment that would interfere or muddy your entertainment experience MULTIPLE VOLTAGES AVAILABLE - 5V/5A 12V/4A versions provide power options for many of the most common equipment. Choose the voltage model that is right for your device based on your manufacturer's specifications Dimensions 2.2 x 5.8 x 1.3 inches,

Price is $299.00

Price: $299