Those are GarageTrac tiles:
I love them! They were very easy to install (just need a jigsaw or similar to cut the final tiles near the wall) and I've had them for almost 3 years now and not one has any issues!
GarageTrac® Diamond Garage Flooring Tile | DIY Garage Remodeling
GarageTrac® diamond pattern interlocking garage flooring tiles come with a 12 year manufacturer's limited warranty. Perfect flooring for remodeling garages.
www.bigfloors.com
I love them! They were very easy to install (just need a jigsaw or similar to cut the final tiles near the wall) and I've had them for almost 3 years now and not one has any issues!