* Single 3" with Interface (Super Power) (1986)
* Single second 3" drive for 464 or 664 wi (Super Power)
* SM2400 ([[Amstrad|AMSTRAD]]) MODEM(2400 baud Internal PC modem - not CPC related)
* [[Soft158A: DDI-1 Firmware - The Complete CPC 464 DOS ROM Specification|SOFT 158A]] ([[Amstrad|AMSTRAD]]) DDI-1 FIRMWARE MANUAL
* [[SOFT 968]] ([[Amstrad|AMSTRAD]]) FIRMWARE SPECIFICATION (6128)