Things you can buy with crypto? Artwork. Music. Trading cards. And now, NFT enthusiasts can add digital collectible racehorses to their list. Australian-based start-up Zed Run is betting big on virtual horse racing via their online gaming platform– and they just raised a $20 million Series A funding round with VC firms like Andreessen Horowitz and Red Beard Ventures participating in the deal. CNBC TechCheck's Deirdre Bosa takes you behind the racing trend that is gaining horsepower.