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 Ferrite Cores (1 PAIR) for 24AWG HDMI Cable
    Product # 4155
    22AWG 24AWG
    In Stock This item should ship tomorrow (9/25/2018) if ordered within 22 hours 5 minutes

    Volume Pricing (Log In to see Member Pricing)

    Volume Pricing

    Qty: 1 $2.40
    Qty: 2-9 $2.35
    Qty: 10-19 $2.30
    Qty: 20-49 $2.26
    Qty: 50+ $2.16

    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 4 questions Browse 4 questions and 3 answers
    Is there a certain distance these have to be from the end of the cable?
    I thought I read somewhere that it depends on the frequency of the interference.

    I found the following in a white paper:
    "Use a core with an I.D. that fits the conductor as snugly as possible."
    "If a product has RFI problems at both low and high frequencies, use chokes for
    each frequency range in series, placing the chokes for the highest frequency range
    closest to the equipment that receives the interference."

    That helps marginally. If you install one of these and it doesn't help, try moving it along the cable while observing the effect.
    Ralph C on Feb 12, 2017
    BEST ANSWER: Hello, thank you for your question. That's is exactly right, there is not a specific distance the cores need to be installed and depending on which equipment is having interference will dictate the location of the cores placement and is found through trial and error. I hope this helps, and of course if you have any more questions feel free to contact us!
    Please tell me the Inside Diameter (ID)of both the 22AWG and t he 24AWG cores?
    Mark D on Feb 11, 2017
    BEST ANSWER: The smaller one is about .15 inches, and the larger one is about .43 inches.
    Would either one of these fit 32 Guage HDMI or is there another product for that gauge?
    New User U on Feb 21, 2018
    Monoprice Ferrite Cores (1 PAIR) for 24AWG HDMI Cable
    Monoprice Ferrite Cores (1 PAIR) for 24AWG HDMI Cable
    Monoprice Ferrite Cores (1 PAIR) for 22AWG HDMI Cable
    Monoprice Ferrite Cores (1 PAIR) for 22AWG HDMI Cable
    4.5 / 5.0
    40 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Mixed feelings about this item
    I had to squeeze extremely hard to fit onto 24AWG cable. Pliers were required and some of the ferrite cores broke when being squeezed closed.

    This was not expected as both ferrite and cable were specified 24AWG.

    CONS: Too small opening to fit easily on PID 3658 - 24AWG silver-plated HDMI cable.
    January 23, 2013
    Problem fixed..
    I needed ferrite cores to solve an interference problem, The cores I needed were easy and quick to find, and selecting the correct size easy. Ordering was easy, shipment prompt.
    Very satisfied with Monoprice.
    I'll be back again.

    PROS: Easy to use website, and ordering process.

    CONS: Non
    September 3, 2013
    Great product
    These are great and I am a loyal customer and will buy every cable, adapter and whatnot from these guys. All the while laughing when I go to best buy looking at their outrageous prices . I will be ordering more products from Monoprice in the near future. Everything I have ordered from them has been superior. I tell everyone I know to shop here. Great products, great prices, great customer service, fast shipping, and packed well too. I love Monoprice!!

    PROS: Well for starters $2.14 for 2 (a pair not 2 halves) That's peanuts to pay for the security these give against any line noise. Installation was a breeze. I used a small regular screwdriver to gently open the tabs. Put one on either end of the wires and squeezed them together with my thumb and forefinger.

    CONS: Hot apple pie not included :D
    April 30, 2011
    reminder this wont fit net-jacketed 24awg hdmi cable
    these magnets work great. however, this is just a reminder to those of you buying these 24awg ferrite cores, you need to order the 24awg hdmi cable that does NOT have the braided net jacket on it braided jackets increase the width of the cable, so these would be too small to snap closed. Either order the 24awg hdmi without the net jacket, or the 26awg hdmi with the net jacket to get these to fit. Monoprice rules!
    October 26, 2008
    Fits Perfect with 6ft 24AWG CL2 Silver Plated High Speed HDMI Cable
    Forgot to mention what cable I used these on. Others mentioned they didn't fit 24awg. Well your wrong, it fit mine perfectly.
    May 4, 2011
    Well built cores, tight install but that's good
    Had to push fairly hard to get these guys on a 45 foot HDMI cable I bought but they did go on, and I actually prefer a snug fit so I was very pleased with this. Well-built and look good. Buy with confidence.
    September 17, 2009
    Monitor Flicker Caused by Office Chair (ESD) Fixed
    So I noticed and found out that gas lift office chairs create an electronic discharge that can effect monitors (make em flicker or turn off).

    Read on Reddit that Ferrite rings can help with this. (SCIENCE). Low and behold, applied these to my DisplayPort cables to my Acer monitor and bam, no more flicker when it roll my office chair around.
    September 18, 2017
    1 year ago
    Great product - Great Price
    Item came in very timely manner, and does the job very well that it was designed for. Would definitely recommend.
    December 13, 2017
    9 months ago
    Work well with 24 AWG HDMI cable
    Fit well. Snapped on a little snug, but no problems. Worth the peace of mind for a more pure signal transfer. My 45 ft HDMI is passing 1080P and HD audio no problems.
    August 17, 2009
    Super fast delivery

    PROS: Item arrived the next day the order was placed even though I just paid normal delivery fee. Probably because of it was a local delivery (Phoenix, AZ)? Anyway, very happy with this purchase.

    CONS: None so far.
    January 11, 2012