LOUISVILLE, Ky. (AP) — A fast-growing company that snatches up used laptops, tablets and smartphones and finds new customers for them announced Monday that it will open a processing center and eventually employ more than 400 people in Louisville.

Gazelle Inc. plans to invest $22.3 million in its Louisville operations in coming years. Since launching in 2008, the Boston-based company has paid out more than $100 million to customers who sent in electronics they no longer wanted. The company, which operates the trade-in website Gazelle.com, has processed nearly 1.5 million devices.