If you are visually impaired and are having difficulty navigating this site, please call our Customer Support line via our toll free number 1 (877) 271-2592.
    Monoprice P4 to ATX Power Supply Adapter
    Product # 1321
    In Stock This item should ship tomorrow (9/25/2018) if ordered within 16 hours 13 minutes

    Volume Pricing (Log In to see Member Pricing)

    Volume Pricing

    Qty: 1 $1.05
    Qty: 2-9 $1.03
    Qty: 10-19 $1.01
    Qty: 20-49 $0.97
    Qty: 50+ $0.95

    To see and take advantage of our member pricing sign up for a business account or contact our sales team.

    Learn more about Monoprice Business


    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 3 questions Browse 3 questions and 1 answer
    What is the length of the cable?
    A shopper on Nov 19, 2017
    BEST ANSWER: 0.37m
    Cable length??
    ATX side connector - looks like female connector, please confirm.
    A shopper on May 26, 2017
    4.8 / 5.0
    13 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Super Dooper
    I pooped my pants when I saw these. They're just what I was looking for. Monoprice is awesome.

    PROS: Works well, no electrons escape.

    CONS: I wish they came in different colors.
    April 1, 2013
    Helps adapt older systems to newer mobos
    Bought to upgrade an older ATX machine to a newer style mobo. Monoprice has everything you need in cables at good to great pricing.
    December 17, 2009
    P4 connector and pigtails for Infinity Basslink
    Infinity's Basslink auto subwoofer includes P4 sockets for high (speaker) level input.

    Replacement accessory cables from Infinity were overpriced and seemingly no longer available. These, after lopping 4-pin Molex connectors from a pair, along with Cat5E Punch Down Jacks and a Cat5 cable comprise a convenient and economical substitute.

    PROS: Good price from a reliable source for high quality P4 connectors with pigtails.

    CONS: Supplied with two black and two yellow wire would prefer unique insulation color for each.
    September 4, 2014
    resolved my computer issue
    my Power Supply didn't have this cable available. my monitor was not getting a video signal even after swapping out video cards. I had nothing to go off of aside from the fact that the fans were all spinning and the motherboard and power lights were on. I wasn't getting any beeps to indicate an error either. I noticed near the middle of the board was this 4 prong connection.
    September 11, 2009
    Excellent value and quality
    You'll need this adapter if your motherboard has a 4-pin ATX connector and your power supply does not have one. In case you thought about trying to use the 6-pin PCI-E power connector instead of this adapter: don't. While the PCI-E connector will actually fit with 2 pins hanging off the side, the +12V and GND pins are reversed and you'll short out your PSU.

    This adapter is an excellent value and does the job nicely. It fits snugly on both ends. Wires are 1.5 to 2x longer than other brands' offeringshelpful to me, but your experience may differ. My take on the wire colors: they are exactly what they should bethey follow the convention for the two signals that run through this adapter: +12V and GND.
    November 21, 2014

    PROS: Price
    January 9, 2012
    magical cable
    I recommend these to anyone who needs this cable type at a reasonable price. Monoprice does it again.

    PROS: Makes an older power supply work for a newer motherboard. Works well. It's basically a format changer.

    CONS: The wires are a little longer than is necessary. Better than being too short though.
    June 1, 2013
    Perfect Fit
    Perfect, snug fit between existing 4-pin plug from the power supply (Corsair CX430M) to the motherboard (MSI Z87-G45). Easily searched for and found on Monoprice's website. It's just long enough to tuck along the case and reach around to insert into the motherboard.

    PROS: Snug fit. Easily found on Monoprice's website. Quality product and inexpensive.

    CONS: Please, please more colors. Red or blue at least, instead of yellow. But thankfully it was for a windowless case, so this is nit-picking.
    April 24, 2014
    P4 to ATX Power Supply Adaptor
    Works Perfectly!!!

    PROS: Great Price!!!

    CONS: None
    April 2, 2012
    Works perfectly as an extension cord, which is what I needed. Easily the cheapest I could find, monoprice strikes again!
    October 21, 2011