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 400x200mm Bracket Universal VESA Adapter Plate
    Product # 3403
    In Stock This item should ship today (9/21/2018) if ordered within 6 hours 41 minutes

    Volume Pricing (Log In to see Member Pricing)

    Volume Pricing

    Qty: 1 $6.29
    Qty: 2-9 $6.16
    Qty: 10-19 $6.04
    Qty: 20-49 $5.91
    Qty: 50+ $5.66

    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 4 answers
    what does this weigh?
    William G on Jan 9, 2018
    BEST ANSWER: I do not have a plate to weigh, but I remember using it to set up my TV. I estimate the plate to be 1.25 to 1..5 pounds.
    Hope this helps.
    Is this steel or aluminum? If steel, is there a similar aluminum or stainless equivalent? Looking for a mount for use in a marine environment.
    A shopper on Jun 13, 2018
    BEST ANSWER: This adapter plate is steel and not suitable for outdoor use. We do not have a marine ready version.
    Does this have 300mm mounting holes?
    Jack Y on Jul 1, 2018
    5.0 / 5.0
    28 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    this was a great alternative to buying a whole new bracket for my TV. The product was of good quality and was easily adaptable with the hardware supplied. The only thing better would have been a 400X400mm adapter.

    PROS: great price, decent quality product

    CONS: actually needed a 400X400mm bracket
    in order to afix the brackets to adapt for a 400X400, the brackets overlapped alittle and couldn't sit flush on the existing support
    December 5, 2011
    Nice Adapter Nice Price
    Monoprice is very safe and convenient to order from. I plan to order additional items as needs from them.

    PROS: Monoprice supplies a very sturdy adapter at a good price. After ordering online, standard delivery was within 5 business days. The predrilled bolt patterns matched up exactly with my 32" TV and wall mount.

    CONS: It should have came with my new mount to begin with.
    February 5, 2015
    300x200 Vesa Mount
    The bracket adapter that I received from Monoprice with 300mm spaced horizontal holes. The description list only 400x200 spacing. I thought that I would need to drill 300x200mm holes for my LG OLED wall mount but they are already there.
    December 5, 2017
    9 months ago
    Large, versitile, worked great for me
    I have 2 Samsung 24" HD LCD monitors that had a bolt-pattern in the back that was not compatible with the VESA LCD monitor arms I had purchased for 2 ergonomic workstations I built in my house.

    This plate fixed that quagmire without me having to go back to the LCD-arm manufacturers and get some expensive bolt-on fitting to support the Samsung. It served as a great conversion tool between the 2 different sizes.

    The plate is rather large (had to be to support the wider bolt patterns) so if the mount holes in the back of your monitor are recessed into the plastic shroud that backs the LCD screen, you may need some longer screws.

    I did but had some that worked fine. Might be an issue for others.

    Oh, it does come with screws.

    Thanks Monoprice!
    October 31, 2009
    Solves Problem You Didn't Know Existed Until You Try to Install Everything - TV Stand & TV Mount Not Compatible Sizes
    Great alternative to having to purchase a new TV stand that fits current TV. Allows you to re-use an existing stand with a new TV. Easy to figure out, the item includes hardware. Item is solid metal, so it will be able to support the weight of a TV. Make sure to have screw drivers & wrenches handy (obviously). My only issue was that the screw holes do not exactly line up with the stand for all the holes, but there is no such thing as 100% fit with every single possible combination of mounts and screws.. Works great otherwise, definitely worth the money I paid because it saved me from having to purchase a different TV stand that would be exactly compatible.

    Monoprice is a great source for electronics needs, I am lucky enough to be close to their pickup location. Staff is always friendly and helpful. My orders are consistently ready the next day after ordering.
    April 19, 2017
    1 year ago
    I have a 32" Toshiba LCD that required this adapter. It was easy to install, and saved a lot of time trying to fabricate something myself.
    June 4, 2010
    highly recommend this unit!!!!

    PROS: easy install- Great wall mount

    CONS: had to buy a seperate adapter to fit my TV. cost 6 bucks so its not so bad
    June 17, 2013
    works great!!! easy install

    PROS: works great!!! easy install

    CONS: n/a
    June 17, 2013

    PROS: great product. Saved me lots of money
    July 6, 2013
    TV had an odd mounting pattern. This adapter allowed me to use a more standard mount, saving me lots of money. The mount is solid and there was useful hardware included. If you're trying to fit a funky VESA patterned TV to a generic mount, this is the product for you.

    PROS: simple, effective, plenty of hardware

    CONS: none
    March 18, 2014