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That and more. Here's how it works. You get a token whenever you roll an SSR. You can exchange a token + 50 of one of the 6 SSR character shards in exchange for 60 of their matching SSR character shards. Ostensibly, this means if you, say, have Liana and want Elwin, but you hit Liana, you'll get the 50 Liana shards + token and can immediately make that exchange.
What's good, though, is that you can farm up the 50 shards from gates of fate, so all you actually need to do is roll SSRs. In my case, I rolled Elwin, who I didn't have, but I also had spare Lana shards, so I was immediately able to turn the token + those shards into a new Leon. So my one SSR got doubled.