p/n n0n1n2n3n4n5n6 (Xenya accessories designation) n0 - Part Number origin X - Xenya p/n n1 - Device type A - Accessories n2 - Accessory type P - Power supply F - Fan n3 - Air flow F - Front to back B - Back to front n4 - Current type A - AC D - DC n5n6 - Device specific n5, n6: 0 - 9, A - Z