Part Number Scheme AKD-B/P/T/M Part number scheme for AKD-B, AKD-P, AKD-T, and AKD-M drives. File Versions Release Date 15 Sep 2021 AKD-BPTM_Part_Scheme.pdf (483.91 KB) Release/Version 9/15/2021 Release Description Part number scheme for AKD-B, AKD-P, AKD-T, and AKD-M drives. Release Date 25 Aug 2015 AKD-BPTM.pdf (395.3 KB) Release/Version – Release Description Part number scheme for AKD-B, AKD-P, AKD-T, and AKD-M drives.