Best Buy: Insignia USB Charger Wall Outlet $17.99 (Was $29.99) This post may contain affiliate links. Please see disclosure policy. May 19, 2017May 19, 2017 by Daphne Murray Head on over to BestBuy.com where you can get this highly rated Insignia USB Charger Wall Outlet for just $17.99 (Was $29.99). Shipping is free on an order of $35 or more or you may opt for in-store pickup. Check out all the Today Only deals you can get from Best Buy!