According to Tokyo Walker, KFC worked with Japanese snack maker Calbee to bring this flavor to potato chips—also for a limited time only. This is the first time KFC has collaborated with Calbee like this.
Considering how expensive KFC is in Japan (one piece of savory salt ginger chicken is ¥260 or US$3.30), it might be cheaper to buy the chips. They'll be available at an open price to be determined by retailers, but expect them to cost under ¥150 ($1.90) per bag. Best of all, each bag has a coupon for the salted ginger fried chicken.
カルビー×ケンタッキーが初コラボ！ [Tokyo Walker]