Could you please clarify what you mean by "Roblox exchange"? Roblox is primarily known as a popular online gaming platform where users can create and play games, engage in social activities, and explore virtual worlds. It's not typically associated with cryptocurrency exchanges or financial transactions in the traditional sense. However, if you're referring to a specific feature or service within Roblox that involves exchanging digital assets or currencies, I'd be happy to provide more information if you could elaborate on what you're asking about. Alternatively, if you're looking for a cryptocurrency exchange, there are many reputable platforms available that allow users to buy, sell, and trade digital currencies.