BT Broadband Accelerator is BT Total Broadband's new name for the I-Plate. Available to BT Total Broadband customers for free. Other customers please see http://www.shop.bt.com/iplate to order for £6.63 delivered. Limited to one per broadband account. You only need pay the postage of £1.20 A speed increase after fitting an accelerator is not guaranteed especially if you already have a speed close to the maximum limit (8Mb for ADSL or 20Mb for ADSL2+).