Dynex™ - 400-Watt ATX CPU Power Supply - White

Keep your important computer components running with this 400-watt ATX power supply that features a 6-pin PCI Express connector.
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, items sold by Marketplace vendors, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

Free Shipping on Orders $35 and Up

No minimum for My Best Buy® Elite and Elite Plus members. Minimum purchase of $35 on eligible products required. Excludes select digital items, scheduled delivery items and items displaying "In Store Only" message.Learn more

Cardholder Offers

    Ratings & Reviews

    Overall Customer Rating:
    94% of customers would recommend this product to a friend (223 out of 236)

    (141 Reviews)
    (76 Reviews)
    (9 Reviews)
    (2 Reviews)
    (8 Reviews)

    Product Features

    400-watt (maximum) power supply

    ATX 12V v2.2 compliance

    Compatible with Intel® and AMD multicore processors

    4.7" fan; fan speed control function

    Low power consumption on standby

    Short-circuit, overvoltage and overcurrent protection

    24-pin main connector, PCI Express connector and SATA connector

    Includes one 24-pin-to-20-pin adapter and power cable

    Product images, including color, may differ from actual product appearance.