Black key-shaped USB device with a keyring attachment.
Illustration showing a smartphone connected to a TV, indicating screen mirroring capabilities.
Black HDMI connector plugged into a smartphone's charging port.
Black USB-C key with a sleek design and a logo on the side.
Black rectangular device with a logo, featuring a USB port and a small opening on one side. 
NEW

MCON Key Cast

Cast a phone to the big screen
4.6
Rated 4.6 out of 5 stars
10 Reviews

Cast Anywhere. Fits on Your Keys. Cast your phone screen to any HDMI display in seconds, supporting 4K video at 60Hz. The detachable, pocket-sized design clips to your keyring and pops open with a press. Key Cast also features a 2.4GHz chip which allows you to game with lower latency, higher poll rate, & more range - all without pairing the docked phone. USB-C to HDMI.

HDMI cable required, not included.

Excluded from promotions & discounts.
$29.99
$22.49

In-stock and shipping within 24 business hours

FEATURES

- Portable AF: The detachable, pocket-sized design clips to your keyring.

- 2.4GHz Chip: Game with lower latency, higher poll rate, & more range, all without needing to pair the casted phone.

- One Press Release: Easily detach by pressing on either side — no fumbling required.

- Screen Casting: Effortlessly cast your phone screen to any display via USB-C TO HDMI. The integrated USB-C connector transitions seamlessly to HDMI for instant plug-and-play.

- No Charging Required: Powered directly by your phone - no batteries or charging.

COMPATIBILITY

Key Cast Dock works with most USB-C phones, and all HDMI displays.

Currently the iPhone Air & 16e do not support HDMI casting.

REQUIRED ACCESSORIES

You'll just need an HDMI cable to cast to your screen!
Title

LEVEL UP YOUR EXPERIENCE...

GO BIG,

ANYWHERE

Game on any screen in seconds with Key Cast.  

MOVES

WITH YOU

Just like MCON, Key Cast is ultra portable and designed to move with you.
4.6
Rated 4.6 out of 5 stars
Based on 10 reviews
Total 5 star reviews: 6 Total 4 star reviews: 4 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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10 reviews
  • Rated 5 out of 5 stars
    Jun 6, 2026
    Amazing

    It was great! Works so smoothly

    NM
    Nicholas M.
    Verified Buyer
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  • Rated 4 out of 5 stars
    May 18, 2026
    Cool little guy!!

    This thing is pretty neat. It’s nice not having to carry the MCON dock around in your bag if you plan to cast your phone while on the go. But you better make sure you have a full battery and an hdmi cable

    CB
    Cody B.
    Verified Buyer
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  • Rated 5 out of 5 stars
    May 11, 2026
    Very smooth connection

    Best connector I’ve come across

    LL
    Leon L.
    Verified Buyer
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  • Rated 5 out of 5 stars
    Apr 30, 2026
    Nice

    This is really nice to have anytime when you need it.

    MP
    Michael P. E.
    Verified Buyer
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  • Rated 5 out of 5 stars
    Mar 22, 2026
    Fantastic

    Nice little portable adaptor, also works perfect.

    TC
    Terrance C.
    Verified Buyer
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  • Rated 5 out of 5 stars
    Mar 8, 2026
    👏 Awesome

    This thing worked immediately after plugging it into the big screen and it’s so cool to play with fam and friends. Love it!

    CR
    Chris R.
    Verified Buyer
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  • Rated 4 out of 5 stars
    Feb 28, 2026
    Almost Perfect

    This adapter works on many different types and brands of screens when other adapters do not.

    My only complaint is that the connection to my iPhone 17 pro can be spotty if the adapter is nudged at all. It has to be in juuuust the perfect spot otherwise it looses connection and not the screen may not come back until I unplug it and plug it back in.

    JW
    Joshua W.
    Verified Buyer
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  • Rated 4 out of 5 stars
    Feb 26, 2026
    it does have a cover/keychain but

    so much marketing for a usb c-to-hdmi.

    MJ
    Michael J.
    Verified Buyer
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  • Rated 4 out of 5 stars
    Jan 28, 2026
    Does what it says

    Cheep plastic but it works

    JE
    Joshua E.
    Verified Buyer
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  • Rated 5 out of 5 stars
    Jan 27, 2026
    Good idea one thing missing

    Man, I love everything about this. The key cast is perfect. The only flaw about the keycast is that on my phone. I don't have a way to use the keycast and charge my device. At the same time, only have access to one USB C port. If they could have added like a charge pass through on the side or something. This would have been easily 5 out of 5. But I find myself gaming, and then I have to unplug it charge my device. That's the only downfall other than that, though. This is a great product.

    AJ
    Anthony J.
    Verified Buyer
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